AIR CONDITIONING – Chevrolet Tahoe 1998 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

5.7L

5.7L (VIN R), A/C Wiring Diagram for Chevrolet Tahoe 1998

List of elements for 5.7L (VIN R), A/C Wiring Diagram for Chevrolet Tahoe 1998:

• (engine harn, near diode)
• (engine harness, 22 cm from ebcm breakout)
• (engine harness, near ebcm breakout)
• (engine harness, near egr valve breakout)
• (exc 4.3 l)
• (fwd lamps harn, 5 cm from right headlamp breakout)
• (hvac harness, 4 cm from recirc door breakout)
• (hvac harness, 8 cm from recirc door breakout)
• (i/p harn, 28 cm from cluster breakout)
• (i/p harness, behind center of dash)
• (right side of dash)
• A/c comp fuse 10a
• A/c compressor clutch
• A/c compressor clutch relay (in underhood fuse/relay center)
• A/c compressor cycling switch (in low pressure line, on accumulator)
• A/c ctrl
• A/c disable
• A/c high pressure cutout switch (on a/c compressor)
• A/c low pressure cutout switch (on a/c compressor)
• A/c req
• A/c switch
• Air temp dr sensor
• Aux fan ctrl
• Aux fan fuse 30a
• Auxiliary cooling fan motor
• Auxiliary cooling fan relay (exc 4.3l) (in underhood fuse/relay center)
• Battery
• Blower fuse 3 50a
• Blower motor (under right side of dash)
• Blower resistor (on blower motor housing)
• Blower switch
• Center
• Defogger element
• Diode
• Front mode door motor (on front a/c-heater housing)
• Front temperature door motor (on front a/c-heater housing)
• Fuse block
• G101 (right front of engine compartment)
• G119 (top right side of cylinder head)
• G120 (right side of engine)
• G201
• G202 (behind left side of dash)
• Ground
• High blower relay (on top of front a/c-heater housing)
• Hot at all times
• Hot in run
• Hot in run or start
• Htr a/c fuse 12 25a
• Hvac control module
• Ign e fuse 10a
• Ignition
• Illumination
• Interior lights system
• Mode signal
• Off
• Pnk
• Rear defogger system
• Recirculation door motor (on front a/c-heater housing)
• Red
• Relay ctrl
• S103
• S110
• S128
• S146
• S147 (engine harn, near egr breakout)
• S185
• S186
• S212 (i/p harn, behind center of dash)
• S243
• S244
• S268
• S298
• Sw sig
• Tan
• Underhood fuse-relay
• Underhood fuse-relay center
• Valve ctrl
• Vehicle control module (left side of engine compt)
• Water valve (suburban, utility, crew cab only) (right center of intake area)

5.7L (VIN R), Compressor Wiring Diagram for Chevrolet Tahoe 1998

List of elements for 5.7L (VIN R), Compressor Wiring Diagram for Chevrolet Tahoe 1998:

• (engine harn, near diode)
• 22 cm from ebcm breakout)
• A/c comp fuse 10a
• A/c compressor clutch
• A/c compressor clutch relay (in underhood fuse-relay center)
• A/c compressor cycling switch (in low pressure line, on accumulator)
• A/c control
• A/c disable
• A/c high pressure cutout switch (on a/c compressor)
• A/c low pressure cutout switch (on a/c compressor)
• A/c req
• A/c switch
• Blower switch
• Diode
• Fuse block
• G119 (top right side of cylinder head)
• G120 (right side of engine)
• Hot in run
• Hot in run or start
• Htr a/c fuse 12 25a
• Hvac control module
• Ign e fuse 10a
• Ignition
• Near egr valve breakout)
• Off
• Pnk
• S146 (eng harn, pnk
• S185
• S186
• S268 (i/p harn, behind center of dash)
• Sw sig
• Underhood fuse-relay center
• Vehicle control module (left side of engine compt)

Heater Wiring Diagram for Chevrolet Tahoe 1998

List of elements for Heater Wiring Diagram for Chevrolet Tahoe 1998:

• (hvac harn, 8 cm from recirc door breakout) s244
• (i/p harn, 24 cm from i/p cluster breakout)
• (right side of dash) g201
• Air temp dr sensor
• Battery
• Blower fuse 3 50a
• Blower motor (under right side of dash)
• Blower resistor (on blower motor housing)
• Blower switch
• Defogger element
• Front mode door motor (on front a/c-heater housing)
• Front temperature door motor (on front a/c-heater housing)
• Fuse block
• G202 (behind left side of dash)
• Ground
• High blower relay (on top of front a/c- heater blower housing)
• Hot at all times
• Hot in run
• Htr-a/c fuse 12 25a
• Hvac control module
• Ignition
• Illumination
• Interior lights system
• Mode signal
• Off
• Rear defogger system
• Recirc ctrl
• Recirculation door motor (on front a/c-heater housing)
• Red
• S110 (engine harness, near ebcm breakout)
• S243 (hvac harn, 4 cm from recirc door breakout)
• S268 (i/p harness, behind center of dash)
• S298
• Tan
• Underhood fuse-relay center

6.5L

6.5L (VIN S), A/C Wiring Diagram for Chevrolet Tahoe 1998

List of elements for 6.5L (VIN S), A/C Wiring Diagram for Chevrolet Tahoe 1998:

• (engine harn, 30 cm from breakout to ebcm)
• (engine harn, near diode)
• (engine harness, near ebcm breakout)
• (hvac harness, 4 cm from recirc door breakout)
• (hvac harness, 8 cm from recirc door breakout)
• (i/p harn, 24 cm from cluster breakout)
• (i/p harness, behind center of dash)
• (right side of dash) g201
• A/c comp fuse 10a
• A/c compressor clutch
• A/c compressor clutch relay (in underhood fuse/relay center)
• A/c compressor cycling switch (in low pressure line, on accumulator)
• A/c ctrl
• A/c disable
• A/c enable
• A/c high pressure cutout switch (on a/c compressor)
• A/c low pressure cutout switch (on a/c compressor)
• A/c switch
• Air temp dr sensor
• Aux fan ctrl
• Battery
• Blower fuse 3 50a
• Blower motor
• Blower resistor (under right side of dash, on heater housing)
• Blower switch
• Center
• Defogger element
• Diode
• Front mode door motor (under dash on heater- a/c case)
• Front temperature door motor (under dash on heater- a/c case)
• Fuse block
• G120 (right side of engine)
• G202 (behind left side of dash)
• Ground
• Heater and a/c control module
• High blower relay (under dash on top of heater-a/c case)
• Hot at all times
• Hot in run
• Hot in run or start
• Htr-a/c fuse 12 25a
• Ign 1 fuse 10a
• Ignition
• Illumination
• Interior lights system
• Mode signal
• Off
• Pnk
• Powertrain control module (left rear of engine compt)
• Rear defogger system
• Recirculation door motor (under dash on heater- a/c case)
• Red
• S107
• S110
• S147 (engine harn, 4 cm from starter motor breakout)
• S185
• S186
• S212 (i/p harn, behind center of dash)
• S243
• S244
• S268
• S298
• Tan
• Underhood fuse-relay

6.5L (VIN S), Compressor Wiring Diagram for Chevrolet Tahoe 1998

List of elements for 6.5L (VIN S), Compressor Wiring Diagram for Chevrolet Tahoe 1998:

• (engine harn, near diode)
• 30 cm from ebcm breakout)
• A/c comp fuse 10a
• A/c compressor clutch
• A/c compressor clutch relay (in underhood fuse-relay center)
• A/c compressor cycling switch (in low pressure line, on accumulator)
• A/c control
• A/c disable
• A/c enable
• A/c high pressure cutout switch (on a/c compressor)
• A/c low pressure cutout switch (on a/c compressor)
• A/c switch
• Aux fan ctrl
• Blower switch
• Diode
• Fuse block
• G120 (right side of engine)
• Hot in run
• Hot in run or start
• Htr a/c fuse 12 25a
• Hvac control module
• Ign 1 fuse 10a
• Ignition
• Off
• Pnk
• Powertrain control module (left rear of engine compt)
• Recirculation door motor (under dash, on heater- a/c case)
• S185
• S186
• S268 (i/p harn, behind center of dash)
• Underhood fuse-relay center

Heater Wiring Diagram for Chevrolet Tahoe 1998

List of elements for Heater Wiring Diagram for Chevrolet Tahoe 1998:

• (hvac harn, 8 cm from recirc door breakout) s244
• (i/p harn, 24 cm from i/p cluster breakout)
• (right side of dash) g201
• Air temp dr sensor
• Battery
• Blower fuse 3 50a
• Blower motor (under right side of dash)
• Blower resistor (on blower motor housing)
• Blower switch
• Defogger element
• Front mode door motor (on front a/c-heater housing)
• Front temperature door motor (on front a/c-heater housing)
• Fuse block
• G202 (behind left side of dash)
• Ground
• High blower relay (on top of front a/c- heater blower housing)
• Hot at all times
• Hot in run
• Htr-a/c fuse 12 25a
• Hvac control module
• Ignition
• Illumination
• Interior lights system
• Mode signal
• Off
• Rear defogger system
• Recirc ctrl
• Recirculation door motor (on front a/c-heater housing)
• Red
• S110 (engine harness, near ebcm breakout)
• S243 (hvac harn, 4 cm from recirc door breakout)
• S268 (i/p harness, behind center of dash)
• S298
• Tan
• Underhood fuse-relay center