Hummer H3 I (2005-2010) run/ crank relay 78 Wiring diagrams
This page contains all the electrical diagrams for the component. run/ crank relay 78, in which he is found in the car Hummer H3 I (2005-2010). You can view various wiring diagrams where this component is used, as well as go to more detailed diagrams to see the complete connection and interaction in the system. All diagrams have links to quickly jump to the corresponding section with the component for easy viewing..
Wiring diagram run/ crank relay 78 (1 of 3)
A/T
BACKUP LAMP SWITCH (ON TOP OF TRANSMISSION)
BCK/UP FUSE 28
BKUP
BLK WIRE
BRN WIRE
ELECTRONIC BRAKE CONTROL MODULE (EBCM) (LEFT OF MASTER CYLINDER)
HOT AT ALL TIMES
HOT IN RUN OR START
INSIDE REARVIEW MIRROR
LEFT BACKUP LAMP
LEFT TAIL/ STOP/ TURN SIGNAL LAMP
LT GRN WIRE
NCA WIRE
PARK/NEUTRAL POSITION (PNP) SWITCH (LEFT SIDE OF AUTOMATIC TRANSMISSION)
PNK M/T WIRE
PNK WIRE
RIGHT BACKUP LAMP
RIGHT TAIL/ STOP/ TURN SIGNAL LAMP
RUN/ CRANK RELAY 78
UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL)
Go to component -> Backup lamps circuit -> RUN/ CRANK RELAY 78
Wiring diagram run/ crank relay 78 (2 of 3)
3.7L ONLY, 5.7L INFORMATION NOT AVAILABLE
A/C CLUTCH DIODE 90
A/C COMPRESSOR CLUTCH
A/T
BATTERY
BLK WIRE
ELECTRONIC BRAKE BRAKE CONTROL FLUID MODULE LEVEL (EBCM) SWITCH
ENGINE CONTROL MODULE (ECM)
FOG/LP RELAY 69
FUEL/PUMP RELAY 66
GENERATOR BATTERY CONTROL MODULE
HI/LO BEAM RELAY 70
HORN ASSEMBLY
IGNITION COIL/ MODULE 1
IGNITION COIL/ MODULE 2
IGNITION COIL/ MODULE 3
IGNITION COIL/ MODULE 4
IGNITION COIL/ MODULE 5
LEFT LEFT FRONT PARK/TURN MARKER SIGNAL LAMP LAMP
LEFT RIGHT FRONT FRONT FOG FOG LAMP LAMP
MASS AIR FLOW (MAF)/ INTAKE AIR TEMPERATURE (IAT) SENSOR
NCA WIRE
OFF ROAD ROOF LAMP PRIVISION (BLUNT CUT)
ON/OFF WPR HI/LOW WPR RELAY 72 RELAY 73
PARK/ NEUTRAL POSITION (PNP) SWITCH
RIGHT FRONT MARKER LAMP
RIGHT PARK/TURN SIGNAL LAMP
RR DEFOG RELAY 71
RUN/ CRANK RELAY 78
SECONDARY AIR INJECTION (AIR) PUMP
SECONDARY AIR INJECTION (AIR) PUMP SOLENOID
SUNROOF MOTOR
SUNROOF SWITCH
TRANSMISSION CONTROL MODULE (TCM)
UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEEL-
UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL)
W/ ELECTRIC AIR INJECTION REACTOR
WELL)
WHT WIRE
WIND- SHIELD WIPER MOTOR
Go to component -> Ground distribution circuit (1 of 3) -> RUN/ CRANK RELAY 78
Wiring diagram run/ crank relay 78 (3 of 3)
3-2 SHIFT SOLENOID (SS) VALVE
A/T
ACCESSORY SWITCH
AIR BAG FUSE 27
AIR PUMP FUSE 62
AIR PUMP RLY FUSE 17
BLK WIRE
CRUISE REARVIEW CONTROL CAMERA RELEASE IMAGE SWITCH DISPLAY MODULE
CRUISE/MISC FUSE 35
DK BLU WIRE
DRIVER SEAT ADJUSTER SWITCH
DRL FUSE 39
DRL RELAY 70
FOG/LP RELAY 69
FROM FUEL/ PUMP RELAY 66 (DIAGRAM 2 OF 4)
FROM RAP/ ACCY RELAY 88 (DIAGRAM 1 OF 4)
FRT/WIPER FUSE 6
FUEL PUMP RELAY 66
HDLP RELAY 75
HORN RELAY 74
INFLATABLE RESTRAINT FRONT PASSENGER PRESENCE SYSTEM (PPS) SENSOR
INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM)
INFLATABLE RESTRAINT VEHICLE ROLLOVER SENSOR
INSIDE TURN REARVIEW SIGNAL/ MIRROR MULTI-FUNCTION SWITCH
ON/OFF WIPER RELAY 72
ORG/ WIRE
PASSENGER SEAT ADJUSTER SWITCH
PASSENGER SEAT LUMBAR ADJUSTER SWITCH
PNK PNK A/T IF EQUIPPED WIRE
PNK WIRE
POWER SEAT FUSE HOLDER
PWR SEATS FUSE 61
PWR/TRN RELAY 81
RED WIRE
RUN/ CRANK RELAY 78
RVC PWR FUSE 7
RVC VSENSE+ FUSE 32
SEAT CIRCUIT BREAKER
SECONDARY AIR GENERATOR INJECTION (AIR) BATTERY PUMP RELAY CONTROL MODULE
SPARE 6 FUSE 18 TRANS FUSE 34
TO AIR CMPRSR FUSE 11 (DIAGRAM 3 OF 4)
TO BCK/UP FUSE 28 (DIAGRAM 3 OF 4)
TO BODY CONTROL MODULE (DIAGRAM 4 OF 4)
TO RUN/ CRANK RELAY 78 (DIAGRAM 2 OF 4)
TORQUE CONVERTER CLUTCH PULSE WIDTH MODULATION (TCC PWM) SOLENOID VALVE
TRANSMISSION CONTROL MODULE (TCM)
UNDERHOOD FUSE BLOCK (ABOVE LEFT FRONT WHEELWELL)
W/ AIR INJECTION ELECTRIC REACTOR SYSTEM
WHT WIRE
YEL WIRE
Go to component -> Power distribution circuit (2 of 4) -> RUN/ CRANK RELAY 78
