Diagram sections — 6 (72 total)
ANTI-LOCK BRAKES STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION WARNING SYSTEMS WIPER/WASHER
ANTI-LOCK BRAKES All-Wheel ABS Wiring Diagram, with DRL for GMC Rally G1994 3500 List of elements for All-Wheel ABS Wiring Diagram, with DRL for GMC Rally G1994 3500: 53 (along frame (below steering (not used) (on right rear cylinder head) Abs ind B tan Bpmv gnd Bracket) Brake fuse 10a Brake ind. Brake pressure warning switch Brake sw Brake warn ind Cluster Column) Data link connector Daytime running lamps module (left side of i/p) Diag request Diode array module (under left side of i/p) Four-wheel anti- lock brake module (under right side of vehicle, at frame rail) Front wheel) Fuse block: i/p Fusible link (16 ga-rust) G117 Gauges fuse 20a Hot at all times Hot in run Hot in run, bulb test or start Ign feed Ignition switch Instrument Left front wheel sensor Lf sensor hi Lf sensor lo Nca Output Park brake switch Pnk/ Pump motor gnd Pump motor pwr Rail, near left Rail, near right Red Rf sensor hi Rf sensor lo Right front wheel sensor Speed Tan Tan/ Tcc/brake switch (on brake pedal support Vehicle Vehicle speed in Vehicle speed sensor buffer (on parking brake support bracket) All-Wheel ABS Wiring Diagram, without DRL for GMC Rally G1994 3500 List of elements for All-Wheel ABS Wiring Diagram, without DRL for GMC Rally G1994 3500: 51 (above (along frame (below steering (not used) Abs ind B tan Bpmv gnd Bracket) Brake fuse 10a Brake ind. Brake pressure warning switch Brake sw Brake warn ind Cluster Column) Data link connector Diag request Diode Four-wheel anti- lock brake module (under right side of vehicle, at frame rail) Front wheel) Fuse block: i/p Fusible link (16 ga-rust) G117 (on right rear cylinder head) Gauges fuse 20a Hot at all times Hot in run Hot in run, bulb test or start Ign feed Instrument Left front wheel sensor Lf sensor hi Lf sensor lo Nca Output Park brake switch (on park brake support bracket) Pnk/ Pump motor gnd Pump motor pwr Rail, near left Rail, near right Red Rf sensor hi Rf sensor lo Right front wheel sensor Speed Steering column) Tan Tcc/brake switch (on brake pedal support Vehicle Vehicle speed in Vehicle speed sensor buffer (on parking brake support bracket)
STARTING/CHARGING
4.3L 4.3L (VIN Z), Charging Wiring Diagram for GMC Rally G1994 3500 List of elements for 4.3L (VIN Z), Charging Wiring Diagram for GMC Rally G1994 3500: 33 (behind left side of i/p, near bus bar ground) (closes with low or high voltage; gen fault) (left front of engine compartment, on radiator support) (lower left side, of engine, near (not (not used) Bat Battery Battery junction block (left side of cowl, near bulkhead connector) C196 C261 Field (rotor) Fuse block Fusible link (12 ga. rust) G108 G112 G202 * Gauges fuse 20a Generator (right front of engine) Hot in start or run Instrument cluster Power steering Pump) Rectifier bridge Red Regulator solid-state Starter motor (lower right rear of engine) Stator Sw bat Turn on input Used) Volt sense input Volt- meter 4.3L (VIN Z), Starting Wiring Diagram for GMC Rally G1994 3500 List of elements for 4.3L (VIN Z), Starting Wiring Diagram for GMC Rally G1994 3500: 24 (left front of engine compartment, on radiator support) (lower left side of engine, near power steering pump) (lower right rear of engine) Accy Battery Battery junction block (left side of cowl, near bulkhead connector) Bulb test C201 C211 Fusible link (14 ga. G108 G112 Hold-in winding Ignition switch Lock Off Pull-in winding Red Run Rust) Solenoid contacts Start Starter motor Starter solenoid Charging Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500: 30 (closes with low or high voltage; gen fault) (in i/p harness) (left side of shipping panel) (not (not used) (right front cylinder head) (right side of radiator support) Alt fuse 20a Bat Battery Battery junction block C205 Field (rotor) Fuse block G109 G119 G201 Generator (right front of engine) Hot in run, bulb test or start Instrument cluster Power distribution Rectifier bridge Red Regulator solid-state Stator Sw bat Turn on input Used) Volt sense input Volt- meter Charging Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500: 32 (at generator bracket) g114 (on right frame rail rear of engine (school bus ground) (closes with low or high voltage; gen fault) (in i/p harness) (left side of shipping panel) (not (not used) (rear of cylinder head) (school bus ground) (right side of radiator support) Alt fuse 20a Bat Battery Battery junction block C205 Field (rotor) Fuse block G101 G109 G115 G201 Generator (right front of engine) Hot in run, bulb test or start Instrument cluster Power distribution Rectifier bridge Red Regulator solid-state Stator Sw bat Turn on input Used) Volt sense input Volt- meter Charging Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500: 33 (at bus bar ground) (closes with low or high voltage; gen fault) (engine compartment, behind battery (left lower (left side of shipping panel) (not (not used) Bat Battery Battery junction block C17 Engine) Field (rotor) Front of Fuse block Fusible link (10 ga-rust) G110 G111 G202 Gages fuse 20a Generator (right front of engine) Hot in run or start Instrument cluster Rectifier bridge Red Regulator solid-state Starter circuit Stator Sw bat Turn on input Used) Volt sense input Volt- meter Charging Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500: 25 (at left shipping panel) (closes with low or high voltage; gen fault) (left side of shipping panel) (not (not used) Aalt fuse 20a Bat Battery Battery junction block Field (rotor) Fuse block G111 (engine compartment behind battery Generator (right front of engine) Hot in run or start Instrument cluster Rectifier bridge Red Regulator solid-state Starter circuit Stator Sw bat Turn on input Used) Volt sense input Volt- meter Starting Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500: 39 (at generator bracket) g114 (lower right side of engine) (on clutch pedal (on right frame rail rear of engine) (school bus ground) (right side of radiator support) A/t Accy Bat Battery Battery junction block (left side of Bulb test C298 C299 Clutch start switch Fusible link (20 ga. rust) Fusible link c (16 ga. rust) Fusible link e (20 ga. rust) G100 G101 G115 (rear of cylinder head) (school bus G125 (front of engine) Generator (front of engine) Glow plug controller (top rear of engine) Ground) Hold-in winding Ignition switch Lock M/t Off Pull-in winding Red Run Shipping panel) Solenoid contacts Start Starter motor Starter relay (lower left side of engine) Starter solenoid Support bracket) Starting Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500: 36 (at generator bracket) g114 (lower right side of engine) (on clutch pedal (on right frame rail rear of engine) (school bus ground) (right side of radiator support) A/t Accy Bat Battery Battery junction block (left side of Bulb test C298 C299 Clutch start switch Fusible link b (14 ga. rust) Fusible link e (20 ga. rust) G100 G101 G115 (rear of cylinder head) (school bus Generator (front of engine) Ground) Hold-in winding Ignition switch Lock M/t Off Power distribution (fuse block) Pull-in winding Red Run Shipping panel) Solenoid contacts Start Starter motor Starter solenoid Support bracket) Starting Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500: 24 (left lower front of engine) (lower right side of engine) Accy Battery Battery junction block (left side of Bulb test C214 C215 Distribution Fusible link (16 ga rust) G110 G111 (engine compartment behind battery) Hold-in winding Ignition switch Lock Off Power red Pull-in winding Red Run Solenoid contacts Start Starter motor Starter solenoid Starting Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500: 24 (lower right side of engine) (right frame rail near battery) Accy Bat Battery Battery junction block (left side of Bulb test C201 C277 Fusible link b (14 ga. rust) Fusible link e (20 ga. rust) G105 Generator (front of engine) Hold-in winding Ignition switch Lock Off Pull-in winding Red Run Solenoid contacts Start Starter motor Starter solenoid
5.0L 5.0L (VIN H), Charging Wiring Diagram for GMC Rally G1994 3500 List of elements for 5.0L (VIN H), Charging Wiring Diagram for GMC Rally G1994 3500: 33 (behind left side of i/p, near bus bar ground) (closes with low or high voltage; gen fault) (left front of engine compartment, on radiator support) (lower left side, of engine, near (not (not used) Bat Battery Battery junction block (left side of cowl, near bulkhead connector) C196 C261 Field (rotor) Fuse block Fusible link (12 ga. rust) G108 G112 G202 * Gauges fuse 20a Generator (right front of engine) Hot in start or run Instrument cluster Power steering Pump) Rectifier bridge Red Regulator solid-state Starter motor (lower right rear of engine) Stator Sw bat Turn on input Used) Volt sense input Volt- meter 5.0L (VIN H), Starting Wiring Diagram for GMC Rally G1994 3500 List of elements for 5.0L (VIN H), Starting Wiring Diagram for GMC Rally G1994 3500: 24 (left front of engine compartment, on radiator support) (lower left side of engine, near power steering pump) (lower right rear of engine) Accy Battery Battery junction block (left side of cowl, near bulkhead connector) Bulb test C201 C211 Fusible link (14 ga. G108 G112 Hold-in winding Ignition switch Lock Off Pull-in winding Red Run Rust) Solenoid contacts Start Starter motor Starter solenoid Charging Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500: 30 (closes with low or high voltage; gen fault) (in i/p harness) (left side of shipping panel) (not (not used) (right front cylinder head) (right side of radiator support) Alt fuse 20a Bat Battery Battery junction block C205 Field (rotor) Fuse block G109 G119 G201 Generator (right front of engine) Hot in run, bulb test or start Instrument cluster Power distribution Rectifier bridge Red Regulator solid-state Stator Sw bat Turn on input Used) Volt sense input Volt- meter Charging Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500: 32 (at generator bracket) g114 (on right frame rail rear of engine (school bus ground) (closes with low or high voltage; gen fault) (in i/p harness) (left side of shipping panel) (not (not used) (rear of cylinder head) (school bus ground) (right side of radiator support) Alt fuse 20a Bat Battery Battery junction block C205 Field (rotor) Fuse block G101 G109 G115 G201 Generator (right front of engine) Hot in run, bulb test or start Instrument cluster Power distribution Rectifier bridge Red Regulator solid-state Stator Sw bat Turn on input Used) Volt sense input Volt- meter Charging Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500: 33 (at bus bar ground) (closes with low or high voltage; gen fault) (engine compartment, behind battery (left lower (left side of shipping panel) (not (not used) Bat Battery Battery junction block C17 Engine) Field (rotor) Front of Fuse block Fusible link (10 ga-rust) G110 G111 G202 Gages fuse 20a Generator (right front of engine) Hot in run or start Instrument cluster Rectifier bridge Red Regulator solid-state Starter circuit Stator Sw bat Turn on input Used) Volt sense input Volt- meter Charging Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500: 25 (at left shipping panel) (closes with low or high voltage; gen fault) (left side of shipping panel) (not (not used) Aalt fuse 20a Bat Battery Battery junction block Field (rotor) Fuse block G111 (engine compartment behind battery Generator (right front of engine) Hot in run or start Instrument cluster Rectifier bridge Red Regulator solid-state Starter circuit Stator Sw bat Turn on input Used) Volt sense input Volt- meter Starting Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500: 39 (at generator bracket) g114 (lower right side of engine) (on clutch pedal (on right frame rail rear of engine) (school bus ground) (right side of radiator support) A/t Accy Bat Battery Battery junction block (left side of Bulb test C298 C299 Clutch start switch Fusible link (20 ga. rust) Fusible link c (16 ga. rust) Fusible link e (20 ga. rust) G100 G101 G115 (rear of cylinder head) (school bus G125 (front of engine) Generator (front of engine) Glow plug controller (top rear of engine) Ground) Hold-in winding Ignition switch Lock M/t Off Pull-in winding Red Run Shipping panel) Solenoid contacts Start Starter motor Starter relay (lower left side of engine) Starter solenoid Support bracket) Starting Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500: 36 (at generator bracket) g114 (lower right side of engine) (on clutch pedal (on right frame rail rear of engine) (school bus ground) (right side of radiator support) A/t Accy Bat Battery Battery junction block (left side of Bulb test C298 C299 Clutch start switch Fusible link b (14 ga. rust) Fusible link e (20 ga. rust) G100 G101 G115 (rear of cylinder head) (school bus Generator (front of engine) Ground) Hold-in winding Ignition switch Lock M/t Off Power distribution (fuse block) Pull-in winding Red Run Shipping panel) Solenoid contacts Start Starter motor Starter solenoid Support bracket) Starting Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500: 24 (left lower front of engine) (lower right side of engine) Accy Battery Battery junction block (left side of Bulb test C214 C215 Distribution Fusible link (16 ga rust) G110 G111 (engine compartment behind battery) Hold-in winding Ignition switch Lock Off Power red Pull-in winding Red Run Solenoid contacts Start Starter motor Starter solenoid Starting Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500: 24 (lower right side of engine) (right frame rail near battery) Accy Bat Battery Battery junction block (left side of Bulb test C201 C277 Fusible link b (14 ga. rust) Fusible link e (20 ga. rust) G105 Generator (front of engine) Hold-in winding Ignition switch Lock Off Pull-in winding Red Run Solenoid contacts Start Starter motor Starter solenoid
5.7L 5.7L (VIN K), Charging Wiring Diagram for GMC Rally G1994 3500 List of elements for 5.7L (VIN K), Charging Wiring Diagram for GMC Rally G1994 3500: 33 (behind left side of i/p, near bus bar ground) (closes with low or high voltage; gen fault) (left front of engine compartment, on radiator support) (lower left side, of engine, near (not (not used) Bat Battery Battery junction block (left side of cowl, near bulkhead connector) C196 C261 Field (rotor) Fuse block Fusible link (12 ga. rust) G108 G112 G202 * Gauges fuse 20a Generator (right front of engine) Hot in start or run Instrument cluster Power steering Pump) Rectifier bridge Red Regulator solid-state Starter motor (lower right rear of engine) Stator Sw bat Turn on input Used) Volt sense input Volt- meter 5.7L (VIN K), Starting Wiring Diagram for GMC Rally G1994 3500 List of elements for 5.7L (VIN K), Starting Wiring Diagram for GMC Rally G1994 3500: 24 (left front of engine compartment, on radiator support) (lower left side of engine, near power steering pump) (lower right rear of engine) Accy Battery Battery junction block (left side of cowl, near bulkhead connector) Bulb test C201 C211 Fusible link (14 ga. G108 G112 Hold-in winding Ignition switch Lock Off Pull-in winding Red Run Rust) Solenoid contacts Start Starter motor Starter solenoid Charging Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500: 30 (closes with low or high voltage; gen fault) (in i/p harness) (left side of shipping panel) (not (not used) (right front cylinder head) (right side of radiator support) Alt fuse 20a Bat Battery Battery junction block C205 Field (rotor) Fuse block G109 G119 G201 Generator (right front of engine) Hot in run, bulb test or start Instrument cluster Power distribution Rectifier bridge Red Regulator solid-state Stator Sw bat Turn on input Used) Volt sense input Volt- meter Charging Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500: 32 (at generator bracket) g114 (on right frame rail rear of engine (school bus ground) (closes with low or high voltage; gen fault) (in i/p harness) (left side of shipping panel) (not (not used) (rear of cylinder head) (school bus ground) (right side of radiator support) Alt fuse 20a Bat Battery Battery junction block C205 Field (rotor) Fuse block G101 G109 G115 G201 Generator (right front of engine) Hot in run, bulb test or start Instrument cluster Power distribution Rectifier bridge Red Regulator solid-state Stator Sw bat Turn on input Used) Volt sense input Volt- meter Charging Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500: 33 (at bus bar ground) (closes with low or high voltage; gen fault) (engine compartment, behind battery (left lower (left side of shipping panel) (not (not used) Bat Battery Battery junction block C17 Engine) Field (rotor) Front of Fuse block Fusible link (10 ga-rust) G110 G111 G202 Gages fuse 20a Generator (right front of engine) Hot in run or start Instrument cluster Rectifier bridge Red Regulator solid-state Starter circuit Stator Sw bat Turn on input Used) Volt sense input Volt- meter Charging Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500: 25 (at left shipping panel) (closes with low or high voltage; gen fault) (left side of shipping panel) (not (not used) Aalt fuse 20a Bat Battery Battery junction block Field (rotor) Fuse block G111 (engine compartment behind battery Generator (right front of engine) Hot in run or start Instrument cluster Rectifier bridge Red Regulator solid-state Starter circuit Stator Sw bat Turn on input Used) Volt sense input Volt- meter Starting Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500: 39 (at generator bracket) g114 (lower right side of engine) (on clutch pedal (on right frame rail rear of engine) (school bus ground) (right side of radiator support) A/t Accy Bat Battery Battery junction block (left side of Bulb test C298 C299 Clutch start switch Fusible link (20 ga. rust) Fusible link c (16 ga. rust) Fusible link e (20 ga. rust) G100 G101 G115 (rear of cylinder head) (school bus G125 (front of engine) Generator (front of engine) Glow plug controller (top rear of engine) Ground) Hold-in winding Ignition switch Lock M/t Off Pull-in winding Red Run Shipping panel) Solenoid contacts Start Starter motor Starter relay (lower left side of engine) Starter solenoid Support bracket) Starting Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500: 36 (at generator bracket) g114 (lower right side of engine) (on clutch pedal (on right frame rail rear of engine) (school bus ground) (right side of radiator support) A/t Accy Bat Battery Battery junction block (left side of Bulb test C298 C299 Clutch start switch Fusible link b (14 ga. rust) Fusible link e (20 ga. rust) G100 G101 G115 (rear of cylinder head) (school bus Generator (front of engine) Ground) Hold-in winding Ignition switch Lock M/t Off Power distribution (fuse block) Pull-in winding Red Run Shipping panel) Solenoid contacts Start Starter motor Starter solenoid Support bracket) Starting Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500: 24 (left lower front of engine) (lower right side of engine) Accy Battery Battery junction block (left side of Bulb test C214 C215 Distribution Fusible link (16 ga rust) G110 G111 (engine compartment behind battery) Hold-in winding Ignition switch Lock Off Power red Pull-in winding Red Run Solenoid contacts Start Starter motor Starter solenoid Starting Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500: 24 (lower right side of engine) (right frame rail near battery) Accy Bat Battery Battery junction block (left side of Bulb test C201 C277 Fusible link b (14 ga. rust) Fusible link e (20 ga. rust) G105 Generator (front of engine) Hold-in winding Ignition switch Lock Off Pull-in winding Red Run Solenoid contacts Start Starter motor Starter solenoid
6.5L 6.5L (VIN P), Charging Wiring Diagram for GMC Rally G1994 3500 List of elements for 6.5L (VIN P), Charging Wiring Diagram for GMC Rally G1994 3500: 36 (behind left side of i/p, near bus bar ground) (closes with low or high voltage; gen fault) (left front of engine compartment, on radiator support) (lower left side, of engine, near (not (not used) Bat Battery junction block (left side of cowl, near bulkhead connector) C116 C196 C261 Field (rotor) Forward battery Fuse block Fusible link (12 ga. rust) G108 G112 G202 * Gauges fuse 20a Generator (right front of engine) Glow plug controller (left side of engine) Hot in start or run Instrument cluster Power steering Pump) Rear battery Rectifier bridge Red Regulator solid-state Starter solenoid (lower right rear of engine, on starter motor) Stator Sw bat Turn on input Used) Volt sense input Volt- meter 6.5L (VIN P), Starting Wiring Diagram for GMC Rally G1994 3500 List of elements for 6.5L (VIN P), Starting Wiring Diagram for GMC Rally G1994 3500: 29 (left front of engine compart- ment, on radiator support) (lower left side of engine, near power steering pump) (lower right side of engine) Accy Battery junction block (left side of cowl, engine Bulb test C194 C201 C211 Forward battery Fusible link (14 ga. Fusible link (20 ga. rust) G108 G112 Glow plug controller (left side of engine) Hold-in winding Ignition switch Lock Near bulkhead connector) Off Pull-in winding Rear battery Red Run Rust) Solenoid contacts Start Starter motor Starter solenoid 6.5L (VIN Y), Charging Wiring Diagram for GMC Rally G1994 3500 List of elements for 6.5L (VIN Y), Charging Wiring Diagram for GMC Rally G1994 3500: 36 (behind left side of i/p, near bus bar ground) (closes with low or high voltage; gen fault) (left front of engine compartment, on radiator support) (lower left side, of engine, near (not (not used) Bat Battery junction block (left side of cowl, near bulkhead connector) C116 C196 C261 Field (rotor) Forward battery Fuse block Fusible link (12 ga. rust) G108 G112 G202 * Gauges fuse 20a Generator (right front of engine) Glow plug controller (left side of engine) Hot in start or run Instrument cluster Power steering Pump) Rear battery Rectifier bridge Red Regulator solid-state Starter solenoid (lower right rear of engine, on starter motor) Stator Sw bat Turn on input Used) Volt sense input Volt- meter 6.5L (VIN Y), Starting Wiring Diagram for GMC Rally G1994 3500 List of elements for 6.5L (VIN Y), Starting Wiring Diagram for GMC Rally G1994 3500: 29 (left front of engine compart- ment, on radiator support) (lower left side of engine, near power steering pump) (lower right side of engine) Accy Battery junction block (left side of cowl, engine Bulb test C194 C201 C211 Forward battery Fusible link (14 ga. Fusible link (20 ga. rust) G108 G112 Glow plug controller (left side of engine) Hold-in winding Ignition switch Lock Near bulkhead connector) Off Pull-in winding Rear battery Red Run Rust) Solenoid contacts Start Starter motor Starter solenoid Charging Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500: 30 (closes with low or high voltage; gen fault) (in i/p harness) (left side of shipping panel) (not (not used) (right front cylinder head) (right side of radiator support) Alt fuse 20a Bat Battery Battery junction block C205 Field (rotor) Fuse block G109 G119 G201 Generator (right front of engine) Hot in run, bulb test or start Instrument cluster Power distribution Rectifier bridge Red Regulator solid-state Stator Sw bat Turn on input Used) Volt sense input Volt- meter Charging Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500: 32 (at generator bracket) g114 (on right frame rail rear of engine (school bus ground) (closes with low or high voltage; gen fault) (in i/p harness) (left side of shipping panel) (not (not used) (rear of cylinder head) (school bus ground) (right side of radiator support) Alt fuse 20a Bat Battery Battery junction block C205 Field (rotor) Fuse block G101 G109 G115 G201 Generator (right front of engine) Hot in run, bulb test or start Instrument cluster Power distribution Rectifier bridge Red Regulator solid-state Stator Sw bat Turn on input Used) Volt sense input Volt- meter Charging Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500: 33 (at bus bar ground) (closes with low or high voltage; gen fault) (engine compartment, behind battery (left lower (left side of shipping panel) (not (not used) Bat Battery Battery junction block C17 Engine) Field (rotor) Front of Fuse block Fusible link (10 ga-rust) G110 G111 G202 Gages fuse 20a Generator (right front of engine) Hot in run or start Instrument cluster Rectifier bridge Red Regulator solid-state Starter circuit Stator Sw bat Turn on input Used) Volt sense input Volt- meter Charging Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500: 25 (at left shipping panel) (closes with low or high voltage; gen fault) (left side of shipping panel) (not (not used) Aalt fuse 20a Bat Battery Battery junction block Field (rotor) Fuse block G111 (engine compartment behind battery Generator (right front of engine) Hot in run or start Instrument cluster Rectifier bridge Red Regulator solid-state Starter circuit Stator Sw bat Turn on input Used) Volt sense input Volt- meter Starting Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500: 39 (at generator bracket) g114 (lower right side of engine) (on clutch pedal (on right frame rail rear of engine) (school bus ground) (right side of radiator support) A/t Accy Bat Battery Battery junction block (left side of Bulb test C298 C299 Clutch start switch Fusible link (20 ga. rust) Fusible link c (16 ga. rust) Fusible link e (20 ga. rust) G100 G101 G115 (rear of cylinder head) (school bus G125 (front of engine) Generator (front of engine) Glow plug controller (top rear of engine) Ground) Hold-in winding Ignition switch Lock M/t Off Pull-in winding Red Run Shipping panel) Solenoid contacts Start Starter motor Starter relay (lower left side of engine) Starter solenoid Support bracket) Starting Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500: 36 (at generator bracket) g114 (lower right side of engine) (on clutch pedal (on right frame rail rear of engine) (school bus ground) (right side of radiator support) A/t Accy Bat Battery Battery junction block (left side of Bulb test C298 C299 Clutch start switch Fusible link b (14 ga. rust) Fusible link e (20 ga. rust) G100 G101 G115 (rear of cylinder head) (school bus Generator (front of engine) Ground) Hold-in winding Ignition switch Lock M/t Off Power distribution (fuse block) Pull-in winding Red Run Shipping panel) Solenoid contacts Start Starter motor Starter solenoid Support bracket) Starting Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500: 24 (left lower front of engine) (lower right side of engine) Accy Battery Battery junction block (left side of Bulb test C214 C215 Distribution Fusible link (16 ga rust) G110 G111 (engine compartment behind battery) Hold-in winding Ignition switch Lock Off Power red Pull-in winding Red Run Solenoid contacts Start Starter motor Starter solenoid Starting Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500: 24 (lower right side of engine) (right frame rail near battery) Accy Bat Battery Battery junction block (left side of Bulb test C201 C277 Fusible link b (14 ga. rust) Fusible link e (20 ga. rust) G105 Generator (front of engine) Hold-in winding Ignition switch Lock Off Pull-in winding Red Run Solenoid contacts Start Starter motor Starter solenoid
7.4L 7.4L (VIN N), Charging Wiring Diagram for GMC Rally G1994 3500 List of elements for 7.4L (VIN N), Charging Wiring Diagram for GMC Rally G1994 3500: 33 (behind left side of i/p, near bus bar ground) (closes with low or high voltage; gen fault) (left front of engine compartment, on radiator support) (lower left side, of engine, near (not (not used) Bat Battery Battery junction block (left side of cowl, near bulkhead connector) C196 C261 Field (rotor) Fuse block Fusible link (12 ga. rust) G108 G112 G202 * Gauges fuse 20a Generator (right front of engine) Hot in start or run Instrument cluster Power steering Pump) Rectifier bridge Red Regulator solid-state Starter motor (lower right rear of engine) Stator Sw bat Turn on input Used) Volt sense input Volt- meter 7.4L (VIN N), Starting Wiring Diagram for GMC Rally G1994 3500 List of elements for 7.4L (VIN N), Starting Wiring Diagram for GMC Rally G1994 3500: 24 (left front of engine compartment, on radiator support) (lower left side of engine, near power steering pump) (lower right rear of engine) Accy Battery Battery junction block (left side of cowl, near bulkhead connector) Bulb test C201 C211 Fusible link (14 ga. G108 G112 Hold-in winding Ignition switch Lock Off Pull-in winding Red Run Rust) Solenoid contacts Start Starter motor Starter solenoid Charging Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500: 30 (closes with low or high voltage; gen fault) (in i/p harness) (left side of shipping panel) (not (not used) (right front cylinder head) (right side of radiator support) Alt fuse 20a Bat Battery Battery junction block C205 Field (rotor) Fuse block G109 G119 G201 Generator (right front of engine) Hot in run, bulb test or start Instrument cluster Power distribution Rectifier bridge Red Regulator solid-state Stator Sw bat Turn on input Used) Volt sense input Volt- meter Charging Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500: 32 (at generator bracket) g114 (on right frame rail rear of engine (school bus ground) (closes with low or high voltage; gen fault) (in i/p harness) (left side of shipping panel) (not (not used) (rear of cylinder head) (school bus ground) (right side of radiator support) Alt fuse 20a Bat Battery Battery junction block C205 Field (rotor) Fuse block G101 G109 G115 G201 Generator (right front of engine) Hot in run, bulb test or start Instrument cluster Power distribution Rectifier bridge Red Regulator solid-state Stator Sw bat Turn on input Used) Volt sense input Volt- meter Charging Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500: 33 (at bus bar ground) (closes with low or high voltage; gen fault) (engine compartment, behind battery (left lower (left side of shipping panel) (not (not used) Bat Battery Battery junction block C17 Engine) Field (rotor) Front of Fuse block Fusible link (10 ga-rust) G110 G111 G202 Gages fuse 20a Generator (right front of engine) Hot in run or start Instrument cluster Rectifier bridge Red Regulator solid-state Starter circuit Stator Sw bat Turn on input Used) Volt sense input Volt- meter Charging Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500 List of elements for Charging Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500: 25 (at left shipping panel) (closes with low or high voltage; gen fault) (left side of shipping panel) (not (not used) Aalt fuse 20a Bat Battery Battery junction block Field (rotor) Fuse block G111 (engine compartment behind battery Generator (right front of engine) Hot in run or start Instrument cluster Rectifier bridge Red Regulator solid-state Starter circuit Stator Sw bat Turn on input Used) Volt sense input Volt- meter Starting Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Commercial Chassis (Diesel) for GMC Rally G1994 3500: 39 (at generator bracket) g114 (lower right side of engine) (on clutch pedal (on right frame rail rear of engine) (school bus ground) (right side of radiator support) A/t Accy Bat Battery Battery junction block (left side of Bulb test C298 C299 Clutch start switch Fusible link (20 ga. rust) Fusible link c (16 ga. rust) Fusible link e (20 ga. rust) G100 G101 G115 (rear of cylinder head) (school bus G125 (front of engine) Generator (front of engine) Glow plug controller (top rear of engine) Ground) Hold-in winding Ignition switch Lock M/t Off Pull-in winding Red Run Shipping panel) Solenoid contacts Start Starter motor Starter relay (lower left side of engine) Starter solenoid Support bracket) Starting Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Commercial Chassis (Gasoline) for GMC Rally G1994 3500: 36 (at generator bracket) g114 (lower right side of engine) (on clutch pedal (on right frame rail rear of engine) (school bus ground) (right side of radiator support) A/t Accy Bat Battery Battery junction block (left side of Bulb test C298 C299 Clutch start switch Fusible link b (14 ga. rust) Fusible link e (20 ga. rust) G100 G101 G115 (rear of cylinder head) (school bus Generator (front of engine) Ground) Hold-in winding Ignition switch Lock M/t Off Power distribution (fuse block) Pull-in winding Red Run Shipping panel) Solenoid contacts Start Starter motor Starter solenoid Support bracket) Starting Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Cutaway Chassis for GMC Rally G1994 3500: 24 (left lower front of engine) (lower right side of engine) Accy Battery Battery junction block (left side of Bulb test C214 C215 Distribution Fusible link (16 ga rust) G110 G111 (engine compartment behind battery) Hold-in winding Ignition switch Lock Off Power red Pull-in winding Red Run Solenoid contacts Start Starter motor Starter solenoid Starting Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500 List of elements for Starting Wiring Diagram, Motor Home Chassis for GMC Rally G1994 3500: 24 (lower right side of engine) (right frame rail near battery) Accy Bat Battery Battery junction block (left side of Bulb test C201 C277 Fusible link b (14 ga. rust) Fusible link e (20 ga. rust) G105 Generator (front of engine) Hold-in winding Ignition switch Lock Off Pull-in winding Red Run Solenoid contacts Start Starter motor Starter solenoid
SUPPLEMENTAL RESTRAINTS Supplemental Restraint Wiring Diagram for GMC Rally G1994 3500 List of elements for Supplemental Restraint Wiring Diagram for GMC Rally G1994 3500: 38 (above transmission, (at derm module (below fuse (below i/p, left 2.49k 5.10k 8.45k A10 A11 A12 Air bag fuse 10a Air bag indicator Arming sensor module At center crossmember) Audio alarm module B10 B11 B12 Block) Bracket) Data link connector Diagnostic energy reserve module (behind left side of i/p, near fuse block) Fuse block G210 G210 (at derm module bracket) G220 (at derm module bracket) Gages fuse 20a Hot in run, bulb test or start Hot in start Instrument cluster Left discriminating sensor, (along front crossmember below radiator) Of steering column) Right discriminating sensor, (along front crossmember below radiator) Seat belt sw input Shorting bar Sir crank fuse 3a Solid state Steering wheel inflator module (in steering wheel)
TRANSMISSION
4.3L 4.3L (VIN Z), Transmission Wiring Diagram, 4L60-E for GMC Rally G1994 3500 List of elements for 4.3L (VIN Z), Transmission Wiring Diagram, 4L60-E for GMC Rally G1994 3500: 72 (left i/p, near convenience center) data link connector (partial) (top rear of park brake bracket) (under drivers' seat) 1-2 shift sol 1-2 shift sol cntrl 12 volt batt in 12 volt ignition in 2-3 cntrl sol cntrl 2-3 shift sol 2-3 shift sol cntrl 3-2 control solenoid 5 volt return b 5 volt sensor ref A12 A14 A15 All times B10 Coolant temp in Coolant temp sensor (top front of engine, on intake manifold) Cruise control in Cruise control module Dlc E10 E13 E15 E16 Electronic 4-speed automatic overdrive transmission F10 F12 F13 F14 Fuse brake 10a Fuse ecm ign 10a Fuse ecmb 10a Fuse trans 15a G117 (right rear of engine) G125 (thermostat housing) Ground Hot at Hot in run Hot in run, bulb I/p fuse block Module (pcm) Oxygen sens ground Pcm ground Pcm trans range a Pcm trans range b Pcm trans range c Pnk Powertrain control Press cntrl sol hi Press cntrl sol lo Pressure control sol Range mode selector Red Sensor ground Serial data Stop lamp switch in Tan Tcc cntrl Tcc sol Tcc/brake switch (on brake pedal support arm) Test or start Throttle position sensor (top of engine, on throttle body) Tps in Trans oss hi Trans temp sensor in Trans- mission temp Vehicle speed sensor (left rear of transmission) Vehicle speed sensor buffer (park brake support bracket) Vss in 4.3L (VIN Z), Transmission Wiring Diagram, 4L80-E for GMC Rally G1994 3500 List of elements for 4.3L (VIN Z), Transmission Wiring Diagram, 4L80-E for GMC Rally G1994 3500: 69 (left i/p, near convenience center) data link connector (partial) (under drivers' seat) 1-2 shift sol 1-2 shift sol cntrl 12 volt batt in 12 volt ignition in 2-3 shift sol 2-3 shift sol cntrl 5 volt return b 5 volt sensor ref A12 A14 A15 All times Brake signal Coolant temp in Coolant temp sensor (top front of engine) Dlc E11 E13 E15 E16 Electronic 4-speed automatic overdrive transmission F10 F12 F13 F14 F15 Fuse brake 10a Fuse ecm ign 10a Fuse ecmb 10a Fuse trans 15a G117 (right rear of engine) G125 (thermostat housing) Ground Hot at Hot in run Hot in run, bulb I/p fuse block Module (pcm) Output speed sensor (left rear of transmission) Oxygen sens ground Pcm ground Pcm trans range a Pcm trans range b Pcm trans range c Pcs hi Pcs lo Pnk Powertrain control Pressure control sol Range mode selector Red Sensor ground Serial data Tan Tcc sol Tcc sol cntrl Tcc/brake switch (on brake pedal support arm) Test or start Throttle position sensor (top of engine, on throttle body) Tps in Trans fluid temp sens Trans input spd sens Trans input speed sensor (left front of transmission) Trans oss hi Trans- mission temp Vehicle speed sensor buffer (park brake support bracket) Vss in
5.0L 5.0L (VIN H), Transmission Wiring Diagram, 4L60-E for GMC Rally G1994 3500 List of elements for 5.0L (VIN H), Transmission Wiring Diagram, 4L60-E for GMC Rally G1994 3500: 72 (left i/p, near convenience center) data link connector (partial) (top rear of park brake bracket) (under drivers' seat) 1-2 shift sol 1-2 shift sol cntrl 12 volt batt in 12 volt ignition in 2-3 cntrl sol cntrl 2-3 shift sol 2-3 shift sol cntrl 3-2 control solenoid 5 volt return b 5 volt sensor ref A12 A14 A15 All times B10 Coolant temp in Coolant temp sensor (top front of engine, on intake manifold) Cruise control in Cruise control module Dlc E10 E13 E15 E16 Electronic 4-speed automatic overdrive transmission F10 F12 F13 F14 Fuse brake 10a Fuse ecm ign 10a Fuse ecmb 10a Fuse trans 15a G117 (right rear of engine) G125 (thermostat housing) Ground Hot at Hot in run Hot in run, bulb I/p fuse block Module (pcm) Oxygen sens ground Pcm ground Pcm trans range a Pcm trans range b Pcm trans range c Pnk Powertrain control Press cntrl sol hi Press cntrl sol lo Pressure control sol Range mode selector Red Sensor ground Serial data Stop lamp switch in Tan Tcc cntrl Tcc sol Tcc/brake switch (on brake pedal support arm) Test or start Throttle position sensor (top of engine, on throttle body) Tps in Trans oss hi Trans temp sensor in Trans- mission temp Vehicle speed sensor (left rear of transmission) Vehicle speed sensor buffer (park brake support bracket) Vss in
5.7L 5.7L (VIN K), Transmission Wiring Diagram, 4L60-E for GMC Rally G1994 3500 List of elements for 5.7L (VIN K), Transmission Wiring Diagram, 4L60-E for GMC Rally G1994 3500: 72 (left i/p, near convenience center) data link connector (partial) (top rear of park brake bracket) (under drivers' seat) 1-2 shift sol 1-2 shift sol cntrl 12 volt batt in 12 volt ignition in 2-3 cntrl sol cntrl 2-3 shift sol 2-3 shift sol cntrl 3-2 control solenoid 5 volt return b 5 volt sensor ref A12 A14 A15 All times B10 Coolant temp in Coolant temp sensor (top front of engine, on intake manifold) Cruise control in Cruise control module Dlc E10 E13 E15 E16 Electronic 4-speed automatic overdrive transmission F10 F12 F13 F14 Fuse brake 10a Fuse ecm ign 10a Fuse ecmb 10a Fuse trans 15a G117 (right rear of engine) G125 (thermostat housing) Ground Hot at Hot in run Hot in run, bulb I/p fuse block Module (pcm) Oxygen sens ground Pcm ground Pcm trans range a Pcm trans range b Pcm trans range c Pnk Powertrain control Press cntrl sol hi Press cntrl sol lo Pressure control sol Range mode selector Red Sensor ground Serial data Stop lamp switch in Tan Tcc cntrl Tcc sol Tcc/brake switch (on brake pedal support arm) Test or start Throttle position sensor (top of engine, on throttle body) Tps in Trans oss hi Trans temp sensor in Trans- mission temp Vehicle speed sensor (left rear of transmission) Vehicle speed sensor buffer (park brake support bracket) Vss in 5.7L (VIN K), Transmission Wiring Diagram, 4L80-E for GMC Rally G1994 3500 List of elements for 5.7L (VIN K), Transmission Wiring Diagram, 4L80-E for GMC Rally G1994 3500: 69 (left i/p, near convenience center) data link connector (partial) (under drivers' seat) 1-2 shift sol 1-2 shift sol cntrl 12 volt batt in 12 volt ignition in 2-3 shift sol 2-3 shift sol cntrl 5 volt return b 5 volt sensor ref A12 A14 A15 All times Brake signal Coolant temp in Coolant temp sensor (top front of engine) Dlc E11 E13 E15 E16 Electronic 4-speed automatic overdrive transmission F10 F12 F13 F14 F15 Fuse brake 10a Fuse ecm ign 10a Fuse ecmb 10a Fuse trans 15a G117 (right rear of engine) G125 (thermostat housing) Ground Hot at Hot in run Hot in run, bulb I/p fuse block Module (pcm) Output speed sensor (left rear of transmission) Oxygen sens ground Pcm ground Pcm trans range a Pcm trans range b Pcm trans range c Pcs hi Pcs lo Pnk Powertrain control Pressure control sol Range mode selector Red Sensor ground Serial data Tan Tcc sol Tcc sol cntrl Tcc/brake switch (on brake pedal support arm) Test or start Throttle position sensor (top of engine, on throttle body) Tps in Trans fluid temp sens Trans input spd sens Trans input speed sensor (left front of transmission) Trans oss hi Trans- mission temp Vehicle speed sensor buffer (park brake support bracket) Vss in
6.5L 6.5L (VIN F), Transmission Wiring Diagram, 4L80-E for GMC Rally G1994 3500 List of elements for 6.5L (VIN F), Transmission Wiring Diagram, 4L80-E for GMC Rally G1994 3500: 75 (tft) (under right end of i/p) 1-2 shift sol 1-2 shift sol ctrl 2-3 shift sol 2-3 shift sol ctrl 4 wheel drive low sig A12 Accelerator pedal position (app) module (top of acce- lerator bracket) Alt fuse 20a App #1 App #1 sensor 5v ref App #1 sensor ground App #1 sensor sig App #2 App #2 sensor 5v ref App #2 sensor sig App #3 App #3 sensor 5v ref App #3 sensor ground App #3 sensor sig B10 Battery feed Bracket) C11 C12 C13 C14 C15 D11 Data link connector (below left side of i/p) Diagnostic request E10 E11 E13 Ecm-bat fuse 10a Ecm-crank fuse 10a Ect sig Electronic 4-speed automatic overdrive transmission Engine coolant temperature (ect) sensor (right side of engine) Fuse block G117 (right rear of engine) Hot at all times Hot in run, bulb Hot in start or run Ignition feed Pnk Powertrain control module Pressure control solenoid Pressure ctrl sol hi Pressure ctrl sol lo Range mode selector Range signal "a" Range signal "b" Range signal "c" Red Sensor Sensor ground Serial data Speed sensor (left rear side of transmission) System ground Tan Tan d Tcc sol Tcc sol ctrl Tcc/ brake switch (on brake pedal support Tcc/brake sw Test or start Trans fluid temp Trans fluid temp sig Trans fuse 10a Trans output spd sig Transfer case switch Vehicle speed sensor buffer module (under right end of i/p) Vehicle speed sig 6.5L (VIN P), Transmission Wiring Diagram, 4L60-E for GMC Rally G1994 3500 List of elements for 6.5L (VIN P), Transmission Wiring Diagram, 4L60-E for GMC Rally G1994 3500: 77 (tft) (under right end of i/p) 1-2 shift sol 1-2 shift sol ctrl 2-3 shift sol 2-3 shift sol ctrl 3-2 control sol 3-2 shift sol 4 wheel drive low sig A12 Accelerator pedal position (app) module (top of accel- erator bracket) App #1 App #1 sensor 5v ref App #1 sensor ground App #1 sensor sig App #2 App #2 sensor 5v ref App #2 sensor ground App #2 sensor sig App #3 App #3 sensor 5v ref App #3 sensor ground App #3 sensor sig B10 Battery feed Bracket) Brk fuse 10a C11 C12 C13 C14 C15 D11 Data link connector (below left side of i/p) Diagnostic request E10 E13 Ecm b fuse 10a Ecm i fuse 10a Ect sig Electronic 4-speed automatic overdrive transmission Engine coolant temperature (ect) sensor (right side of engine) Fuse block G117 (right rear of engine) Hot at all times Hot in run Hot in start or run Ingnition feed Pnk Pnk e Powertrain control module Pressure control solenoid Pressure ctrl sol hi Pressure ctrl sol lo Range mode selector Range signal "a" Range signal "b" Range signal "c" Red Sensor Sensor ground Serial data Speed sensor (left rear side of transmission) System ground Tan d Tan j Tcc sol Tcc sol ctrl Tcc/ brake switch (on brake pedal support Tcc/brake sw Trans fluid temp Trans fluid temp sig Trans fuse 10a Trans output spd sig Transfer case switch Vehicle speed sensor buffer (under right end of i/p) Vehicle speed sig 6.5L (VIN Y), Transmission Wiring Diagram, 4L80-E for GMC Rally G1994 3500 List of elements for 6.5L (VIN Y), Transmission Wiring Diagram, 4L80-E for GMC Rally G1994 3500: 76 (below left side of i/p) (partial) 2-3 control output 3-2 control solenoid 5 volts ref A10 A11 A12 B10 B11 B12 Battery power Brake switch input Brake/ transmission shift interlock relay (on steering column) C10 C11 C12 C13 C14 C15 C16 C300 C301 D10 D11 D12 D13 D14 D15 D16 Data link connector Dlc input Ecm1 fuse 10a Ecmb fuse 10a Engine speed sensor (top rear of engine) Engine speed sensor in Force motor hi Force motor low Fuse block: i/p G110 (lower left front of engine) G117 (right rear of engine) Gages fuse 20a Heavy duty electronic 4-speed automatic overdrive transmission Hot at all times Hot in run or start Ignition Instrument cluster system Manifold absolute pressure sensor (rear of engine compt, center of safety wall) Map sensor input Pnk Pnk n Pressure control solenoid Range mode selector Range mode selector a Range mode selector b Range mode selector c Red Red p Sensor ground Service trans output Shift sol a Shift sol b Shift solenoid a output Shift solenoid b output Speed sensor input System ground Tcc sol Tcc/brake switch (below left side of i/p, above brake pedal) Throttle postition sensor (on injection pump) Tp sensor input Trans- mission temp Transmission control module (tcm) (below driver's seat) Transmission input speed sensor (left side of transmission) Transmission speed input Transmission temp input Vehicle speed sensor buffer
7.4L 7.4L (VIN N), Transmission Wiring Diagram, 4L80-E for GMC Rally G1994 3500 List of elements for 7.4L (VIN N), Transmission Wiring Diagram, 4L80-E for GMC Rally G1994 3500: 69 (left i/p, near convenience center) data link connector (partial) (under drivers' seat) 1-2 shift sol 1-2 shift sol cntrl 12 volt batt in 12 volt ignition in 2-3 shift sol 2-3 shift sol cntrl 5 volt return b 5 volt sensor ref A12 A14 A15 All times Brake signal Coolant temp in Coolant temp sensor (top front of engine) Dlc E11 E13 E15 E16 Electronic 4-speed automatic overdrive transmission F10 F12 F13 F14 F15 Fuse brake 10a Fuse ecm ign 10a Fuse ecmb 10a Fuse trans 15a G117 (right rear of engine) G125 (thermostat housing) Ground Hot at Hot in run Hot in run, bulb I/p fuse block Module (pcm) Output speed sensor (left rear of transmission) Oxygen sens ground Pcm ground Pcm trans range a Pcm trans range b Pcm trans range c Pcs hi Pcs lo Pnk Powertrain control Pressure control sol Range mode selector Red Sensor ground Serial data Tan Tcc sol Tcc sol cntrl Tcc/brake switch (on brake pedal support arm) Test or start Throttle position sensor (top of engine, on throttle body) Tps in Trans fluid temp sens Trans input spd sens Trans input speed sensor (left front of transmission) Trans oss hi Trans- mission temp Vehicle speed sensor buffer (park brake support bracket) Vss in
WARNING SYSTEMS Warning System Wiring Diagrams for GMC Rally G1994 3500 List of elements for Warning System Wiring Diagrams for GMC Rally G1994 3500: 24 Audio alarm module (below fuse block) C16 C17 Fasten belts indicator Fasten belts output Fuse block G202 (at bus bar ground) Gages fuse 20a Ground Hot at all times Hot in run or start Hot with headlight switch in park or head I/p cluster Ignition on input Inst lps fuse 5a Key-in warning Key-in warning buzzer switch (in left side of steering column) Left door jamb switch Lights on input Power input Safety belt buckle switch (in driver's safety belt buckle) Safety belt input Stop-hz fuse 20a Tan Warning System Wiring Diagrams, Commercial Chassis for GMC Rally G1994 3500 List of elements for Warning System Wiring Diagrams, Commercial Chassis for GMC Rally G1994 3500: 10 (in i/p harness) Alt fuse 20a Audio alarm module (below fuse block) Fasten belts indicator Fasten belts output Fuse block Ground Hot in run or start Ignition on input Instrument cluster Warning System Wiring Diagrams, Cutaway Chassis for GMC Rally G1994 3500 List of elements for Warning System Wiring Diagrams, Cutaway Chassis for GMC Rally G1994 3500: 24 Audio alarm module (below fuse block) C16 C17 Fasten belts indicator Fasten belts output Fuse block G202 (at bus bar ground) Gages fuse 20a Ground Hot at all times Hot in run or start Hot with headlight switch in park or head Ignition on input Inst lps fuse 5a Instrument cluster Key-in warning Key-in warning buzzer switch (in left side of steering column) Left door jamb switch Lights on input Power input Safety belt input Safety belt retractor switch (in driver's safety belt buckle) Stop-hz fuse 20a Tan Warning System Wiring Diagrams, Motorhome Chassis for GMC Rally G1994 3500 List of elements for Warning System Wiring Diagrams, Motorhome Chassis for GMC Rally G1994 3500: 18 (at left shipping panel) Audio alarm module (below fuse block) Fasten belts indicator Fasten belts output Fuse block Gauges fuse 20a Ground Horn/dm fuse 15a Hot at all times Hot in run or start Hot with headlight switch in park or head Ignition on input Instr-lps fuse 5a Instrument cluster Key-in warning Lights on input Power input Safety belt input
WIPER/WASHER Front Washer/Wiper Wiring Diagram, Commercial Chassis for GMC Rally G1994 3500 List of elements for Front Washer/Wiper Wiring Diagram, Commercial Chassis for GMC Rally G1994 3500: 18 Control area Delay/ speed/ wash control Fuse block Fusible link Hot in accy or run I/p ground (in i/p harness) Ign Low Mist Off Park switch Pnk Pulse Wash pulse switch Windshield washer pump Windshield wiper motor module Windshield wiper/ washer switch Wiper fuse 25a Front Washer/Wiper Wiring Diagram, Cutaway for GMC Rally G1994 3500 List of elements for Front Washer/Wiper Wiring Diagram, Cutaway for GMC Rally G1994 3500: 18 Control area Delay/ speed/ wash control Fuse block Fusible link G202 (left side of i/p) Hot in accy or run Ign Low Mist Off Park switch Pnk Pulse Wash pulse switch Windshield washer pump (left kick panel) Windshield wiper motor module (center of i/p) Windshield wiper/ washer switch Wiper fuse 25a Front Wiper/Washer Wiring Diagram for GMC Rally G1994 3500 List of elements for Front Wiper/Washer Wiring Diagram for GMC Rally G1994 3500: 19 Control area Delay/ speed/ wash control Fuse block Fusible link G117 (right rear of engine) Hot in accy or run I/p ground (in i/p harness) Ign Low Mist Off Park switch Pnk Pulse Wash pulse switch Windshield washer pump (left rear of engine compt) Windshield wiper motor module (center of i/p) Windshield wiper/ washer switch Wiper fuse 25a Wiper/Washer Provisions Wiring Diagram, Motorhome Chassis for GMC Rally G1994 3500 List of elements for Wiper/Washer Provisions Wiring Diagram, Motorhome Chassis for GMC Rally G1994 3500: 12 Fuse block G114 (left rear of engine) Hot in accy or run Mist Off Pnk Provisions for wiper/washer module Pulse Pulse wiper/ washer switch Wash pulse Wiper fuse 25a Wiper motor connector
