STARTING/CHARGING – Chevrolet Express 2500 LT 2014 – SYSTEM WIRING DIAGRAMS

STARTING/CHARGING

4.8L VIN A

4.8L VIN A, Charging Wiring Diagram for Chevrolet Express 2500 LT 2014

List of elements for 4.8L VIN A, Charging Wiring Diagram for Chevrolet Express 2500 LT 2014:

• (on right front of engine compt) g106
• 4.3l
• 4.3l/5.3l
• 4.8l/6.0l
• 5v ref
• A1 x3
• Battery
• Battery current sensor (4.3l/5.3l)
• Body control module (bcm) (behind lower right side of dash)
• Charge ind
• Computer data lines system
• Current sensor sig
• Data bus (+) x1
• Data bus (-)
• Driver information center (dic) display
• Engine control module (ecm)
• Except 4.3l
• Fusible link 3
• G104 (right side of engine)
• G105 (on right front frame rail, in engine compt)
• Generator
• Generator field duty cycle sig
• Generator turn on sig x2
• Gmlan serial data
• Hot w/ run/crank relay 15 energized
• Ign volt
• Instrument panel cluster (ipc)
• Ipc fuse 10a
• Logic
• Low ref
• Low speed gmlan serial data
• Pnk
• Power distribution system
• Red
• Starting circuit
• Tan
• Underhood fuse block (on left side of engine compt)
• X100

4.8L VIN A, Starting Wiring Diagram for Chevrolet Express 2500 LT 2014

List of elements for 4.8L VIN A, Starting Wiring Diagram for Chevrolet Express 2500 LT 2014:

• 4.3l
• 4.3l & 5.3l
• 4.8l & 6.0l
• Automatic transmission assembly
• Automatic transmission internal mode switch (ims)
• Battery
• Battery current sensor
• Body control module (bcm) (behind lower right side of dash)
• Charging circuit
• Computer data lines system
• Control solenoid valve assembly
• Crnk relay 39
• Data bus (+)
• Data bus (-)
• Engine control module (ecm)
• Except 4.3l
• Fusible link 2
• G102 (except 4.3l: on left rear of engine) (4.3l: right rear of engine)
• G103 (except 4.3l: on right rear of engine) (4.3l: left rear of engine)
• G104 (right side of engine)
• G105 (on right front frame rail, in engine compt)
• G106 (on right front of engine compt)
• Gmlan serial data
• Ignition switch
• Ignition voltage
• J101
• J102
• Nca
• Off
• Park/ neutral/ signal
• Park/neutral position (pnp) switch
• Pnk
• Red
• Run acc
• Start
• Starter enable relay ctrl
• Starter motor
• Strtr sol fuse 40a
• Tan
• Transmission control module (tcm)
• Underhood fuse block (on left side of engine compt)
• X175
• X200 c1

6.0L VIN B

6.0L VIN B, Charging Wiring Diagram for Chevrolet Express 2500 LT 2014

List of elements for 6.0L VIN B, Charging Wiring Diagram for Chevrolet Express 2500 LT 2014:

• (on right front of engine compt) g106
• 4.3l
• 4.3l/5.3l
• 4.8l/6.0l
• 5v ref
• A1 x3
• Battery
• Battery current sensor (4.3l/5.3l)
• Body control module (bcm) (behind lower right side of dash)
• Charge ind
• Computer data lines system
• Current sensor sig
• Data bus (+) x1
• Data bus (-)
• Driver information center (dic) display
• Engine control module (ecm)
• Except 4.3l
• Fusible link 3
• G104 (right side of engine)
• G105 (on right front frame rail, in engine compt)
• Generator
• Generator field duty cycle sig
• Generator turn on sig x2
• Gmlan serial data
• Hot w/ run/crank relay 15 energized
• Ign volt
• Instrument panel cluster (ipc)
• Ipc fuse 10a
• Logic
• Low ref
• Low speed gmlan serial data
• Pnk
• Power distribution system
• Red
• Starting circuit
• Tan
• Underhood fuse block (on left side of engine compt)
• X100

6.0L VIN B, Starting Wiring Diagram for Chevrolet Express 2500 LT 2014

List of elements for 6.0L VIN B, Starting Wiring Diagram for Chevrolet Express 2500 LT 2014:

• 4.3l
• 4.3l & 5.3l
• 4.8l & 6.0l
• Automatic transmission assembly
• Automatic transmission internal mode switch (ims)
• Battery
• Battery current sensor
• Body control module (bcm) (behind lower right side of dash)
• Charging circuit
• Computer data lines system
• Control solenoid valve assembly
• Crnk relay 39
• Data bus (+)
• Data bus (-)
• Engine control module (ecm)
• Except 4.3l
• Fusible link 2
• G102 (except 4.3l: on left rear of engine) (4.3l: right rear of engine)
• G103 (except 4.3l: on right rear of engine) (4.3l: left rear of engine)
• G104 (right side of engine)
• G105 (on right front frame rail, in engine compt)
• G106 (on right front of engine compt)
• Gmlan serial data
• Ignition switch
• Ignition voltage
• J101
• J102
• Nca
• Off
• Park/ neutral/ signal
• Park/neutral position (pnp) switch
• Pnk
• Red
• Run acc
• Start
• Starter enable relay ctrl
• Starter motor
• Strtr sol fuse 40a
• Tan
• Transmission control module (tcm)
• Underhood fuse block (on left side of engine compt)
• X175
• X200 c1

6.0L VIN G

6.0L VIN G, Charging Wiring Diagram for Chevrolet Express 2500 LT 2014

List of elements for 6.0L VIN G, Charging Wiring Diagram for Chevrolet Express 2500 LT 2014:

• (on right front of engine compt) g106
• 4.3l
• 4.3l/5.3l
• 4.8l/6.0l
• 5v ref
• A1 x3
• Battery
• Battery current sensor (4.3l/5.3l)
• Body control module (bcm) (behind lower right side of dash)
• Charge ind
• Computer data lines system
• Current sensor sig
• Data bus (+) x1
• Data bus (-)
• Driver information center (dic) display
• Engine control module (ecm)
• Except 4.3l
• Fusible link 3
• G104 (right side of engine)
• G105 (on right front frame rail, in engine compt)
• Generator
• Generator field duty cycle sig
• Generator turn on sig x2
• Gmlan serial data
• Hot w/ run/crank relay 15 energized
• Ign volt
• Instrument panel cluster (ipc)
• Ipc fuse 10a
• Logic
• Low ref
• Low speed gmlan serial data
• Pnk
• Power distribution system
• Red
• Starting circuit
• Tan
• Underhood fuse block (on left side of engine compt)
• X100

6.0L VIN G, Starting Wiring Diagram for Chevrolet Express 2500 LT 2014

List of elements for 6.0L VIN G, Starting Wiring Diagram for Chevrolet Express 2500 LT 2014:

• 4.3l
• 4.3l & 5.3l
• 4.8l & 6.0l
• Automatic transmission assembly
• Automatic transmission internal mode switch (ims)
• Battery
• Battery current sensor
• Body control module (bcm) (behind lower right side of dash)
• Charging circuit
• Computer data lines system
• Control solenoid valve assembly
• Crnk relay 39
• Data bus (+)
• Data bus (-)
• Engine control module (ecm)
• Except 4.3l
• Fusible link 2
• G102 (except 4.3l: on left rear of engine) (4.3l: right rear of engine)
• G103 (except 4.3l: on right rear of engine) (4.3l: left rear of engine)
• G104 (right side of engine)
• G105 (on right front frame rail, in engine compt)
• G106 (on right front of engine compt)
• Gmlan serial data
• Ignition switch
• Ignition voltage
• J101
• J102
• Nca
• Off
• Park/ neutral/ signal
• Park/neutral position (pnp) switch
• Pnk
• Red
• Run acc
• Start
• Starter enable relay ctrl
• Starter motor
• Strtr sol fuse 40a
• Tan
• Transmission control module (tcm)
• Underhood fuse block (on left side of engine compt)
• X175
• X200 c1

6.6L VIN L

6.6L VIN L, Charging Wiring Diagram for Chevrolet Express 2500 LT 2014

List of elements for 6.6L VIN L, Charging Wiring Diagram for Chevrolet Express 2500 LT 2014:

• Auxiliary battery
• Auxiliary generator
• Battery
• Charge ind
• Computer data lines system
• Driver information center (dic)
• Engine control module (ecm)
• Fusible link 3
• Fusible link 5
• G104 (right side of engine)
• G105 (on right front frame rail, in engine compt)
• G106 (on right front of engine compt)
• G305 (left center outer frame rail, near secondary battery)
• Generator
• Generator field duty cycle sig
• Generator turn on sig
• Hot w/ run/crank relay 15 energized
• Ign volt
• Instrument panel cluster (ipc)
• Ipc fuse 10a
• J140 (w/ dual generator)
• Logic
• Pnk
• Power distribution system
• Red
• Ser data bus (+)
• Ser data bus (-)
• Serial data
• Starter motor
• Tan
• Underhood fuse block (on left side of engine compt)
• Underhood junction block
• W/ dual generator
• W/ dual generator ambulance upfitter

6.6L VIN L, Starting Wiring Diagram for Chevrolet Express 2500 LT 2014

List of elements for 6.6L VIN L, Starting Wiring Diagram for Chevrolet Express 2500 LT 2014:

• (+)
• (-)
• (left front lower side of engine block)
• Automatic transmission
• Automatic transmission internal mode switch (ims)
• Auxiliary battery
• Battery
• Body control module (bcm) (behind lower right side of dash)
• Charging circuit
• Computer data lines system
• Control solenoid valve assembly
• Crnk relay 39
• Engine control module (ecm)
• Fusible link 2
• G102 (left front lower side of engine block)
• G103
• G104 (right side of engine)
• G105 (on right front frame rail, in engine compt)
• G106 (on right front of engine compt)
• G305 (left center outer frame rail, near secondary battery)
• Gmlan serial data
• Ignition switch
• Ignition voltage
• J101
• J102
• Off
• Park/ neutral signal
• Pnk
• Red
• Run acc
• Start
• Starter enable relay ctrl
• Starter motor
• Strtr sol fuse 40a
• Tan
• Transmission control module (tcm)
• Underhood fuse block (on left side of engine compt)
• Underhood junction block
• X1 e1
• X101
• X174
• X200 c1