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Home › Hummer › 2008 › H3 Alpha › Repair and Diagnosis › External Pages › Different car › Section 554 (Component Locations - Electrical Center Identification Views) › Electrical Center Identification Views

Electrical Center Identification Views

WARNING: This page is about a different car, the 2010 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Fuse Block - Underhood Label
GM1967942Courtesy of GENERAL MOTORS CORP.
FUSE BLOCK - UNDERHOOD FUSE AND RELAY IDENTIFICATION LEGEND

Fuse And Relay Description Rating Circuits
ABS Fuse 25A Electronic Brake Control Module (EBCM)
ABS MTR Fuse 50A Electronic Brake Control Module (EBCM)
A/C CLTCH Fuse 10A A/C CMPRSR CLTCH Relay
AFS Fuse 30A Power Steering Control Module (PSCM)
AUX OUTLET Fuse 20A Accessory Power Outlet - Center Console, Accessory Power Outlet - Rear
BLWR Fuse 40A FRT BLWR Relay
BRK VAC PUMP Fuse 15A BRK VAC PUMP Relay
CCP Fuse 10A HVAC Control Module
CCP/RLY COILS Fuse 10A Distance Sensing Cruise Control (DSCC) Module, FRT BLWR Relay, Headlamp Leveling Module, HVAC Control Module, STRTR Relay
ECM 1 Fuse 15A Engine Control Module (ECM)
ECM/TCM BATT Fuse 10A Automatic Transmission, Engine Control Module (ECM)
ECM/TCM IGN Fuse 15A Automatic Transmission, Engine Control Module (ECM), Instrument Panel Cluster (IPC)
EKM/I/P MDL Fuse 10A Instrument Panel Cluster (IPC), Remote Control Door Lock Receiver (RCDLR)
EVEN COILS Fuse 15A Engine Control Module (ECM), Fuel Injector 2, Fuel Injector 4, Fuel Injector 6, Fuel Injector 8, Ignition Coil 2, Ignition Coil 4, Ignition Coil 6, Ignition Coil 8
FAN 1 Fuse 30A LO FAN SPD Relay
FAN 2 Fuse 30A HI FAN SPD Relay
FOG LAMP Fuse 15A Fog Lamp - Left Front, Fog Lamp - Right Front
FRT PWR OUTLET Fuse 15A Accessory Power Outlet - Front, Cigar Lighter
FUEL COOL Fuse 10A FUEL COOL Relay (LLT)
HORN Fuse 15A HORN Relay
HTD WASH/AQS Fuse 10A Air Quality Sensor, Heated Washer Nozzle - Left, Heated Washer Nozzle - Right
HUD Fuse 10A Head Up Display (HUD), Steering Column Lock Control Module, Steering Wheel/Column Tilt/Telescope Switch
I/BEAM Fuse 15A Automatic Headlamp Dimming Relay
I/P MDL/ALDL Fuse 10A Data Link Connector (DLC), Instrument Panel Module (IPM)
LIC DIM Fuse 7.5A Instrument Panel Module (IPM), License Lamp - Left, License Lamp - Right
LPDB 1 Fuse 50A Fuse Block - Left Rear
LPDB 2 Fuse 50A Fuse Block - Left Rear
LT HI BEAM Fuse 10A Headlamp - Left High Beam
LT LO BEAM Fuse 20A Headlamp Ballast - Left, Headlamp - Left Low Beam
LT PRK Fuse 10A Marker Lamp - Left Front, Marker Lamp - Left Rear, Park Lamp - Left Front, LT POS Relay, Tail Lamp - Left
ODD COILS Fuse 15A Engine Control Module (ECM), Fuel Injector 1, Fuel Injector 3, Fuel Injector 5, Fuel Injector 7, Ignition Coil 1, Ignition Coil 3, Ignition Coil 5, Ignition Coil 7
POST O2 SNSR Fuse 15A A/C CMPRSR CLTCH Relay, FAN S/P Relay, FUEL COOL Relay, Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2, Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2, HI FAN SPD Relay, LO FAN SPD Relay, Mass Air Flow (MAF)/ Intake Air Temperature (IAT) Sensor
PRE O2 SNSR Fuse 15A Camshaft Position (CMP) Actuator Solenoid Valve - Bank 1 Exhaust, Camshaft Position (CMP) Actuator Solenoid Valve - Bank 1 Intake, Camshaft Position (CMP) Actuator Solenoid Valve - Bank 2 Exhaust, Camshaft Position (CMP) Actuator Solenoid Valve - Bank 2 Intake, Evaporative Emission (EVAP) Canister Purge Solenoid Valve, Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1, Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
RAIN SNSR/TPM Fuse 7.5A Headlamp Washer Fluid Pump Relay, Tire Pressure Module, Windshield Outside Moisture Sensor
RPDB 1 Fuse 50A Fuse Block - Right Rear
RPDB 2 Fuse 50A Fuse Block - Right Rear
RT HI BEAM Fuse 10A Headlamp - Right High Beam
RT LO BEAM Fuse 20A Headlamp Ballast - Right, Headlamp - Right Low Beam
RT PRK Fuse 10A Marker Lamp - Right Front, Marker Lamp - Right Rear, Park Lamp - Right Front, Tail Lamp - Right, RT POS Relay
STRTR Fuse 30A STRTR Relay
V/CHK Fuse 10A Instrument Panel Module (IPM)
WPR Fuse 30A WPR HI Relay
WPR SW/VICS Fuse 7.5A Traffic Information Receiver, Windshield Wiper/Washer Switch
HDLP WASH Circuit Breaker 30A Headlamp Washer Fluid Pump Relay
A/C CMPRSR CLTCH Relay - A/C Compressor Clutch
ACCY Relay - RAIN SNSR/TPM Fuse, WPR SW/VICS Fuse
BRK VAC PUMP Relay - Brake Booster Pump Motor (LLT)
FAN S/P Relay - Engine Cooling Fan - Left (LH2 with V03 or V92), Engine Cooling Fan Resistor (LLT or LH2 without V03 or V92)
FOG LAMP Relay - FOG LAMP Fuse
FRT BLOWER Relay - Blower Motor Control Module
FUEL COOL Relay - Coolant Pump - Auxiliary (LLT)
HI BEAM Relay - LT HI BEAM Fuse, RT HI BEAM Fuse
HI FAN SPD Relay - Engine Cooling Fan - Right (LH2 with V03 or V92), Engine Cooling Fan Resistor (LLT or LH2 without V03 or V92)
HORN Relay - Horn Assembly
LO BEAM - W/O HID/HID Relay - LT LO BEAM Fuse, RT LO BEAM Fuse
LO FAN SPD Relay - Engine Cooling Fan - Left (LH2 with V03 or V92), Engine Cooling Fan Resistor (LLT or LH2 without V03 or V92)
PRK LAMP Relay - LIC DIM Fuse, LT PRK Fuse, RT PRK Fuse
PWR/TRN Powertrain Relay - BRK VAC PUMP Fuse, ECM 1 Fuse, EVEN COILS Fuse, ODD COILS Fuse, POST O2 SNSR Fuse, PRE O2 SNSR Fuse,
RUN CRNK Relay - CCP Fuse, ECM/TCM IGN Fuse, HTD WASH/AQS Fuse
STARTER Relay - Starter Motor
WPR HI Wiper Relay - Windshield Wiper/Washer Module
Fig 2: Fuse Block - Underhood Top View
GM1967948Courtesy of GENERAL MOTORS CORP.
Fig 3: Fuse Block - Underhood Bottom View
GM1822197Courtesy of GENERAL MOTORS CORP.
Fig 4: Fuse Block - Underhood X1
GM1827035Courtesy of GENERAL MOTORS CORP.
Fuse Block - Underhood X1

Pin Wire Circuit Function
1 3 GY 532 Cooling Fan Motor Supply Voltage
2 - - Not Used
3 3 GY 532 Cooling Fan Motor Supply Voltage (LLT or LH2 without V03 or V92)
4 3 BK 250 Ground (LH2 with V03 or V92)
3 GY 532 Cooling Fan Motor Supply Voltage (LLT or LH2 without V03 or V92)
5 0.35 PU 709 Left Park Lamp Supply Voltage
0.35 PU 709 Left Park Lamp Supply Voltage (T84)
0.5 PU 709 Left Park Lamp Supply Voltage (TT6)
6 0.35 RD/WH 340 Battery Positive Voltage (K59)
7 0.5 BN/WH 1473 Right Park Lamp Supply Voltage (TT7 or TT8)
8 0.35 BN/WH 309 Right Park Lamp Supply Voltage
0.35 BN/WH 309 Right Park Lamp Supply Voltage (T84)
0.5 BN/WH 309 Right Park Lamp Supply Voltage (TT6)
9 0.35 D-BU/WH 1315 Right Turn Signal Indicator Lamp Supply Voltage
0.35 D-BU/WH 1315 Right Turn Signal Indicator Lamp Supply Voltage (TT7 or TT8)
10 0.8 PU 2234 Fog Lamp Supply Voltage
11 0.5 PU 1472 Left Park Lamp Suppl Voltage (TT7 or TT8)
12-13 - - Not Used
14 0.35 RD/WH 340 Battery Positive Voltage (TR7)
15 0.8 D-GN/WH 711 Left Head Lamp High Beam Supply Voltage (TT7 or TT8 without TQ5)
0.8 D-GN/WH 711 Left Head Lamp High Beam Supply Voltage (T84)
16 - - Not Used
17 0.35 L-BU/WH 1314 Left Front Turn Signal Lamp Supply Voltage
0.35 L-BU/WH 1314 Left Front Turn Signal Lamp Supply Voltage (TT7 or TT8)
18 0.8 PU 2234 Fog Lamp Supply Voltage
19 - - Not Used
20 0.35 PK 1439 Ignition 1 Voltage (K14)
21 1 TN/WH 312 Right Headlamp Low Beam Supply Voltage
22 1 YE 712 Left Headlamp Low Beam Supply Voltage
23 0.35 L-GN/BK 311 Right Headlamp High Beam Supply Voltage
24 - - Not Used
25 0.8 D-GN 29 Horn Control (LH2 or LLT-U03)
0.8 D-GN 29 Horn Control (LH2 or LLT with U03)
26 - - Not Used
27 0.5 BK 250 Ground
28 - - Not Used
29 3 WH 504 Low Reference (V03 or V92 or V09)
3 WH 504 Low Reference (-V92 or V03 or V09)
30-31 - - Not Used
32 3 L-BU 409 Cooling Fan Motor Supply Voltage (V03 or V92 or V09)
3 L-BU 409 Cooling Fan Motor Supply Voltage (-V92 or V03 or V09)
Connector Part Information 
  • OEM: 7283-9458-30
  • Service: 19153183
  • Description: 32-Way F YESC Kaizen Series (BK)
Terminal Part Information 
  • Pins: 1, 4, 29, 32
  • Terminal/Tray: 7116-4122-02/10
  • Core/Insulation Crimp: A/B
  • Release Tool/Test Probe: 12094430/J-35616-42 (RD)
  • Pins: 5, 8, 9, 17, 27
  • Terminal/Tray: 7116-4100-08/9
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 12094430/J-35616-2A (GY)
  • Pins: 6, 7, 10, 11, 14, 15, 18, 20, 21-23, 25
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
Fig 5: Fuse Block - Underhood X2
GM1827034Courtesy of GENERAL MOTORS CORP.
Fuse Block - Underhood X2

Pin Wire Circuit Function
1-4 - - Not Used
5 5 BK 9342 Battery Positive Voltage (JL7)
6 5 RD/BK 2 Battery Positive Voltage
7 5 RD/BK 2 Battery Positive Voltage
8 5 L-BU 188 Blower Motor Control Processor Supply Voltage
9 5 RD/BK 2 Battery Positive Voltage
10-12 - - Not Used
13 0.35 PK 5126 After Boil Heater Pump Supply Voltage
14 3 YE 143 Accessory Voltage
15 0.35 YE 32 Instrument Panel Lamp Fuse Supply Voltage
16-19 - - Not Used
20 0.35 WH 1080 Park Lamp Relay Control
21-22 - - Not Used
23 0.35 RD/WH 1440 Battery Positive Voltage
24 0.35 BN 247 Blower Motor Relay Control
25 0.35 PK/WH 1970 Headlamp Low Beam Relay Control
26 - - Not Used
27 0.35 YE 43 Accessory Voltage
0.35 YE 43 Accessory Voltage (YQ7)
28 0.35 BN 4 Accessory Voltage
29 0.35 PK 1539 Ignition 1 Voltage
30-33 - - Not Used
34 0.35 YE 32 Instrument Panel Lamp Fuse Supply Voltage
35-37 - - Not Used
38 0.5 PU 709 Left Park Lamp Supply Voltage
39 0.35 RD/WH 1440 Battery Positive Voltage
40 - - Not Used
41 0.35 TN/WH 1969 Headlamp High Beam Relay Control (without TQ5)
42 0.35 TN 28 Horn Relay Control
43 0.8 PK 239 Ignition Voltage
44 - - Not Used
45 0.35 RD/WH 3340 Battery Positive Voltage
46-47 - - Not Used
48 0.35 PK 1639 Ignition Voltage
49-51 - - Not Used
52 0.35 YE 243 Accessory Voltage (CE1 or UH3)
53 0.35 D-BU/WH 1315 Right Front Turn Signal Lamp Supply Voltage
54 - - Not Used
55 0.35 PK 1439 Ignition Voltage (XA7)
0.35 PK 1439 Ignition Voltage (XA7)
56 0.5 PU 1472 Left Park Lamp Supply Voltage (TT7 or TT8)
57 0.35 RD/WH 340 Battery Positive Voltage
58 - - Not Used
59 0.35 RD/WH 1640 Battery Positive Voltage
0.35 RD/WH 1640 Battery Positive Voltage (UV6)
60-61 - - Not Used
62 0.35 D-GN/WH 1317 Fog Lamp Relay Control
63-64 - - Not Used
65 0.35 YE 243 Accessory Voltage (TT6 or TT7 or TT8)
66 0.5 BN/WH 309 Right Park Lamp Supply Voltage
67 0.35 L-BU/WH 1314 Left Front Turn Signal Lamp Supply Voltage
68-69 - - Not Used
70 0.5 BN/WH 1473 Accessory Voltage (TT7 or TT8)
71-72 - - Not Used
73 3 RD/WH 2140 Battery Positive Voltage (TQ5)
74 - - Not Used
75 3 RD/BK 4042 Battery Positive Voltage (TT6 or TT7 or TT8)
76-79 - - Not Used
80 5 RD/BK 2 Battery Positive Voltage
81 0.8 RD/WH 3540 Battery Positive Voltage
82 0.35 RD/WH 1140 Battery Positive Voltage
0.35 RD/WH 1140 Battery Positive Voltage
83 - - Not Used
84 1 RD/WH 2040 Battery Positive Voltage
Connector Part Information 
  • OEM: 7283-9464-3W
  • Service: 19153184
  • Description: 84-Way F YESC Kaizen Series (BK)
Terminal Part Information 
  • Pins: 5-7, 9, 42, 75, 80
  • Terminal/Tray: 7116-4122-02/10
  • Core/Insulation Crimp: Pins 5, 42, 75 - A/B
  • Core/Insulation Crimp: Pins 6, 7, 9, 80 - D/G
  • Release Tool/Test Probe: 12094430/J-35616-42 (RD)
  • Pins: 13, 14, 74, 83
  • Terminal/Tray: 7116-4112-02/9
  • Core/Insulation Crimp: C/D
  • Release Tool/Test Probe: 12094430/J-35616-35 (VT)
  • Pins: 16, 17, 24-26, 28, 30, 31, 38-40, 42-48, 54-56, 61, 67, 69, 70
  • Terminal/Tray: 7116-4100-08/9
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094430/J-35616-2A (GY)
  • Pins: 23, 29, 41, 57-59, 72, 73, 81, 82, 84
  • Terminal/Tray: 7116-4111-02/9
  • Core/Insulation Crimp: Pins 23, 81, 84 - C/A
  • Core/Insulation Crimp: Pins 29, 41, 57, 58, 59, 72, 73, 82 - E/A
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)
  • Pins: 76, 78
  • Terminal/Tray: 7116-4120-02/9
  • Core/Insulation Crimp: E/B
  • Release Tool/Test Probe: 12094430/J-35616-42 (RD)
Fig 6: Fuse Block - Underhood X3
GM1827033Courtesy of GENERAL MOTORS CORP.
Fuse Block - Underhood X3

Pin Wire Circuit Function
1 0.8 PK/BK 5294 Ignition 1 Voltage
2 - - Not Used
3 0.35 D-BU 473 High Speed Cooling Fan Relay Control
4 - - Not Used
5 0.35 D-GN 335 Low Speed Cooling Fan Relay Control
6 - - Not Used
7 0.35 YE 447 Starter Relay Coil Control
8 - - Not Used
9 5 PU 6 Starter Solenoid Crank Voltage (LLT)
3 PU 6 Starter Solenoid Crank Voltage (without LLT)
10-16 - - Not Used
17 0.35 RD/WH 1440 Battery Positive Voltage
0.5 RD/WH 1440 Battery Positive Voltage
18-19 - - Not Used
20 3 RD/BK 9342 Battery Positive Voltage (JL7)
21-23 - - Not Used
24 0.75 PK 239 Ignition Voltage
25-26 - - Not Used
27 PK/BK 5293 Ignition 1 Voltage
28-29 - - Not Used
30 0.35 BN 7448 Vacuum Pump Motor Relay Control (LLT)
31 0.35 D-GN 59 A/C Compressor Clutch Supply Voltage
32 0.35 D-GN/WH 459 A/C Compressor Clutch Relay Control
33 0.35 GY 5127 Afterboil Coolant Pump Supply Voltage (LLT)
34-35 - - Not Used
36 0.75 PK 239 Ignition Voltage
37-39 - - Not Used
40 0.8 PK 2039 Ignition 1 Voltage (LLT)
1 BN 2039 Ignition 1 Voltage (LH2 without JL7)
41 1 PK/BK 5290 Ignition 1 Voltage (LLT)
0.8 PK/BK 5290 Ignition 1 Voltage (LH2)
42 1 OG 1470 Brake Booster Pump Motor Supply Voltage (LLT)
43-44 - - Not Used
45 0.35 BN 5069 Powertrain Relay Control
46 - - Not Used
47 1 PK/BK 5292 Ignition 1 Voltage
48-50 - - Not Used
51 1 PK/BK 5291 Ignition 1 Voltage
52-53 - - Not Used
54 5 RD/BK 342 Battery Positive Voltage
Fuse Block - Underhood X4

Terminal Part Information 
  • Terminal: 7003-2071-02
  • Core/Insulation Crimp: N/A
  • Description: Ring Terminal
Fuse Block - Underhood X4

Pin Wire Circuit Function
+ 19 RD 1 Battery Positive Voltage
Connector Part Information 
  • OEM: 7283-9457-3W
  • Service: 19153182
  • Description: 54-Way F YESC Kaizen Series (BK)
Terminal Part Information 
  • Pins: 1, 11, 23, 27, 33, 38, 40, 41, 47, 51
  • Terminal/Tray: 7116-4101-08/9
  • Core/Insulation Crimp: Pins 1, 27 - C/A
  • Core/Insulation Crimp: Pins 11, 23, 33, 38, 40, 41, 47, 51 - E/A
  • Release Tool/Test Probe: 12094430/J-35616-2A (GY)
  • Pins: 3, 5, 7, 19, 22, 24, 30, 31, 32, 34, 36, 49
  • Terminal/Tray: 7116-4100-08/9
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094430/J-35616-2A (GY)
  • Pin: 9
  • Terminal/Tray: 7116-4122-02/10
  • Core/Insulation Crimp: A/B
  • Release Tool/Test Probe: 12094430/J-35616-42 (RD)
  • Pins: 54
  • Terminal/Tray: 7116-3250/10
  • Core/Insulation Crimp: G/3
  • Release Tool/Test Probe: 12094430/J-35616-22 (RD)
Fig 7: Fuse Block - Left Rear Label
GM1967952Courtesy of GENERAL MOTORS CORP.
FUSE BLOCK - LEFT REAR FUSE AND RELAY IDENTIFICATION LEGEND

Fuse And Relay Description Rating Circuits
AIRBAG/BATT Fuse 10A Inflatable Restraint Sensing and Diagnostic Module (SDM)
AMP Fuse 30A Audio Amplifier
BCK/UP LAMP Fuse 10A BCK/UP LAMP Relay
DDM Fuse 15A Door Control Module - Driver, Speaker - Left Front Door Subwoofer
ELC CMPRSR Fuse 30A ELC CMPRSR Relay
ELC EXH Fuse 10A Automatic Level Control (ALC) Compressor
IGN 3 Fuse 10A Automatic Transmission Shift Lever, Power Steering Control Module (PSCM), Seat Belt Retractor - Driver, Seat Belt Retractor - Passenger, Seat Climate Control Module, Steering Wheel Speed/Position Sensor, Vehicle Stability Control Module, Yaw and Lateral Accelerometer Sensor
INCLR PUMP Fuse 10A INCLR PUMP Relay
MRTD MDL Fuse 25A Electronic Suspension Control (ESC) Module
MSM Fuse 10A Memory Seat Module (MSM), Seat Adjuster Switch - Driver, Seat Lumbar Switch - Driver, Ventilated Seat Blower Motor - Driver Back, Ventilated Seat Blower Motor - Driver Cushion
POS LAMPS Fuse 10A LT POS Relay
REAR DR MDL Fuse 15A Door Control Module - Left Rear, Door Control Module - Right Rear
REAR HTD/SEATS Fuse 20A Heated Seat Control Module - Rear
REAR SHLF SPKR Fuse 15A Speaker - Rear Subwoofer
SPARE 5A SPO DVD
THEFT SHFT Fuse 10A Automatic Transmission Shift Lever, Intrusion Sensor, Theft Deterrent Alarm Siren, Vehicle Inclination Sensor
TRUNK RELSE SW Fuse 7.5A TRUNK RELSE Relay
TV/VICS/AFS/SCM Fuse 10A Traffic Information Receiver, TV Antenna Module, Vehicle Stability Control Module
PWR SEATS Circuit Breaker 30A Memory Seat Module (MSM), Seat Adjuster Switch - Passenger, Seat Lumbar Switch - Passenger
BCK/UP LAMP Relay - Back Up Lamp - Left, Back Up Lamp - Right, Inside Rearview Mirror (ISRVM), Rear Object Sensor Control Module
ELC CMPRSR Relay - Automatic Level Control (ALC) Compressor
INCLR PUMP Relay - Charge Air Cooler (CAC) Coolant Pump, Engine Control Module (ECM)
LT POS Relay - Marker Lamp - Left Front, Park Lamp - Left Front, Tail Lamp - Left
RT POS Relay - Marker Lamp - Right Front, Park Lamp - Right Front, Tail Lamp - Right
RUN Relay - IGN 3 Fuse, REAR HTD/SEATS Fuse
STDBY LAMP Relay - LT POS Relay, RT POS Relay
TRUNK RELSE Relay - Rear Compartment Lid Latch
Fig 8: Fuse Block - Left Rear Top View
GM1967956Courtesy of GENERAL MOTORS CORP.
Fig 9: Fuse Block - Left Rear - Wire Entry
GM882688Courtesy of GENERAL MOTORS CORP.
Fuse Block - Left Rear - Wire Entry

Pin Wire Circuit Function
CB1 3 RD/WH 3740 Battery Positive Voltage
CB2 - - Battery Positive Voltage Bus 1
FD1-FD2 - - Not Used
FL1 3 RD 1242 Battery Positive Voltage
FL2 - - Battery Positive Voltage Bus 1
FL3 - - Battery Positive Voltage
FL4 3 GY 926 Battery Positive Voltage
FU1 - - Not Used
FU2 - - Battery Positive Voltage Bus 2
FU3 0.35 RD/WH 3940 Battery Positive Voltage
0.35 RD/WH 3940 Battery Positive Voltage (UA2)
FU4 - - Battery Positive Voltage Bus 2
FU5 2 RD/WH 2340 Battery Positive Voltage
FU6 - - Battery Positive Voltage Bus 2
FU7 0.8 RD/WH 840 Battery Positive Voltage
FU8 - - Battery Positive Voltage Bus 2
FU9 0.35 RD/BK 1342 Battery Positive Voltage (F55)
FU10 - - Battery Positive Voltage Bus 2
FU11 0.5 RD/WH 640 Battery Positive Voltage
FU12 - - Battery Positive Voltage Bus 2
FU13 0.35 RD/WH 3340 Battery Positive Voltage (JL7)
0.35 RD/WH 3240 Battery Positive Voltage (YQ6 or YQ7 or UQY)
0.35 OG 3240 Battery Positive Voltage (YQ7)
FU14 - - Battery Positive Voltage Bus 2
FU15 - - Ignition Voltage Bus
FU16 1 BN 341 Ignition Voltage (KA6)
FU17 3 BN 900 Ignition Voltage
FU18 RD - SPO DVD
FU19 - - Ignition Voltage Bus
FU20 - - Not Used
FU21 - - Ignition Voltage Bus
FU22 0.5 BN 41 Ignition Voltage
FU23 - - Battery Positive Voltage Bus 1
FU24 1 RD/WH 2440 Battery Positive Voltage (YQ4 or YQ6 or YQ7)
FU25 - - Battery Positive Voltage Bus 1
FU26 0.8 RD/WH 2840 Battery Positive Voltage
FU27 - - Battery Positive Voltage Bus 1
FU28 0.5 RD/WH 3640 Battery Positive Voltage
FU29 - - Battery Positive Voltage Bus 1
FU30 0.5 D-GN 901 Battery Positive Voltage
FU31 - - Battery Positive Voltage Bus 1
FU32 0.5 RD/WH 940 Battery Positive Voltage
FU33 - - Battery Positive Voltage Bus 1
FU34 0.5 D-GN/WH 905 Battery Positive Voltage (TT7 or TT8)
R1-R5 - - Not Used
R6 0.35 GY 921 Ignition Voltage
R7 3 GY 926 Battery Positive Voltage
R8 3 D-GN 322 Automatic Level Control Compressor Motor Supply Voltage (F55)
R9 - - Not Used
R10 0.35 YE 321 Automatic Level Control Relay Control (F55)
R11 0.35 YE/BK 1418 Left Rear Turn Signal Switch Signal (TT7 or TT8)
R12 0.35 PU 1472 Left Park Lamp Supply Voltage (TT7 or TT8)
0.35 PU 1472 Left Park Lamp Supply Voltage (TT7 or TT8)
R13 0.35 D-GN/WH 905 Battery Positive Voltage (TT7 or TT8)
0.35 D-GN/WH 905 Battery Positive Voltage (TT7 or TT8)
R14 0.5 PU 709 Left Park Lamp Supply Voltage (TT7 or TT8)
R15 0.35 D-GN/WH 904 Battery Positive Voltage (TT7 or TT8)
R16 0.35 D-GN/WH 1419 Right Rear Turn Signal Switch Signal (TT7 or TT8)
R17 0.5 BN/WH 1473 Right Park Lamp Supply Voltage (TT7 or TT8)
0.5 BN/WH 1473 Right Park Lamp Supply Voltage (TT7 or TT8)
R18 0.5 D-GN/WH 905 Battery Positive Voltage (TT7 or TT8)
R19 0.5 BN/WH 309 Right Park Lamp Supply Voltage (TT7 or TT8)
R20 0.35 D-GN/WH 904 Battery Positive Voltage (TT7 or TT8)
0.35 D-GN/WH 903 Battery Positive Voltage (TT7 or TT8)
R21 0.35 BK 850 Ground
R22 - - Battery Positive Voltage Bus 1
R23 3 BN 900 Ignition Voltage
R24 - - Not Used
R25 0.35 OG 300 Ignition Voltage
0.35 GY 921 Ignition Voltage
R26 - - Battery Positive Voltage Bus 1
R27 0.35 D-GN/WH 903 Battery Positive Voltage (TT7 or TT8)
R28 - - Not Used
R29 - - Battery Positive Voltage Bus
R30 0.35 BN/WH 1429 Standing Lamp Relay Control (TT7 or TT8)
R31 0.35 RD/WH 3640 Battery Positive Voltage
R32 0.5 RD/WH 3640 Battery Positive Voltage
R33 0.35 TN/WH 56 Trunk Release Motor Control
R34 - - Not Used
R35 0.35 L-BU 1344 Trunk Release Relay Control
R36 0.35 D-GN 901 Battery Positive Voltage
R37 0.35 D-GN 901 Battery Positive Voltage
0.5 D-GN 901 Battery Positive Voltage
R38 0.5 L-GN 24 Backup Lamp Supply Voltage
R39 - - Not Used
R40 0.35 D-GN 646 Reverse Relay Control
S1 0.5 BN 41 Ignition Voltage
S2 - - Not Used
S3 0.35 BN 41 Ignition Voltage
S4 - - Not Used
S5 0.35 BN 41 Ignition Voltage (KA1 or KB6)
S6 0.5 BN 41 Ignition Voltage
S7 0.5 BN 41 Ignition Voltage
S8-S11 - - Not Used
S12 0.8 RD/WH 840 Battery Positive Voltage
S13 0.8 RD/WH 840 Battery Positive Voltage
S14 0.8 RD/WH 840 Battery Positive Voltage
S15-S19 - - Not Used
S20 0.5 RD/WH 3640 Battery Positive Voltage
S21 0.5 RD/WH 3640 Battery Positive Voltage
S22 0.5 RD/WH 3640 Battery Positive Voltage
S23 0.35 RD/WH 3640 Battery Positive Voltage
S24 0.5 L-GN 24 Backup Lamp Supply Voltage
S25 0.35 L-GN 24 Backup Lamp Supply Voltage
S26 0.5 L-GN 24 Backup Lamp Supply Voltage
S27 0.35 L-GN 24 Backup Lamp Supply Voltage
S28 0.35 L-GN 24 Backup Lamp Supply Voltage
Connector Part Information 
  • OEM: 7254-5201
  • Service: See Catalog
  • Description: Rear PDB Base Assembly (BK)
Terminal Part Information 
  • Pins: CB1, CB2, FL1-FL4, FU1, FU2, FU4-FU6, FU8-FU17, FU19-FU21, FU23-FU30, R1, R2, R5, R7, R8, R10-R23, R25-R27, R29-R31, R33, R35-R37, R40
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
  • Pins: FU3, FU22, R3, R6, R38, S1-S8, S15-S28
  • Terminal/Tray: 7116-4020/11
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 15315247/J-35616-18 (BK)
  • Pins: FU7, S12-S14
  • Terminal/Tray: 7116-4021/11
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 15315247/J-35616-18 (BK)
Fig 10: Fuse Block - Left Rear Connector
GM1283880Courtesy of GENERAL MOTORS CORP.
Fuse Block - Left Rear Connector

Pin Wire Circuit Function
1 5 RD/BK 2 Battery Positive Voltage
2 5 RD/BK 2 Battery Positive Voltage
Connector Part Information 
  • OEM: 7123-4123-30
  • Service: 88953301
  • Description: 2-Way F L-Type (BK)
Terminal Part Information 
  • Terminal/Tray: 7116-3250/10
  • Core/Insulation Crimp: G/3
  • Release Tool/Test Probe: 12094430/J-35616-22 (RD)
Fig 11: Fuse Block - Right Rear Label
GM1967954Courtesy of GENERAL MOTORS CORP.
FUSE BLOCK - RIGHT REAR FUSE AND RELAY IDENTIFICATION LEGEND

Fuse And Relay Description Rating Circuits
AIRBAG/IGN Fuse 10A Inflatable Restraint I/P Module Indicator, Inflatable Restraint Passenger Presence System (PPS) Module, Inflatable Restraint Sensing and Diagnostic Module (SDM)
CNSTR VENT Fuse 10A Evaporative Emission (EVAP) Canister Vent Solenoid Valve
DIFF PUMP Fuse 15A DIFF PUMP Relay
FRT PDM Fuse 15A Door Control Module - Passenger, Speaker - Right Front Door Subwoofer
FUEL PUMP Fuse 20A FUEL PUMP Relay
HTD STR Fuse 7.5A Heated Steering Wheel Control Module, Steering Column Lock Control Module
INT LAMP Fuse 10A INT LAMP Relay
LT TRN/LDW Fuse 10A Rear Integration Module (RIM), Vehicle Direction Alert Alarm Warning Module
RDO/ONSTAR Fuse 10A Radio, Vehicle Communication Interface Module (VCIM)
REAR DEFOG Fuse 40A REAR DEFOG Relay
REAR/FOG Fuse 10A REAR/FOG Relay
RF HTD/SEAT/XM Fuse 20A Digital Radio Receiver, Seat Climate Control Module, Ventilated Seat Blower Motor - Passenger Back, Ventilated Seat Blower Motor - Passenger Cushion
RIM Fuse 10A Rear Integration Module (RIM)
RIM/RPA/ISRVM/CLM Fuse 10A Inside Rearview Mirror (ISRVM), Rear Integration Module (RIM), Rear Object Sensor Control Module, Steering Column Lock Control Module, Theft Deterrent Alarm Siren
RT TRN/SBZA Fuse 10A Rear Integration Module (RIM), Side Object Sensor - Left, Side Object Sensor - Right
RUN/CRNK Fuse 10A REAR/FOG Relay, RUN/CRNK Relay
S/ROOF Fuse 20A Sunroof Control Module
STOP LAMPS Fuse 10A STOP LAMP Relay
WNDW MTRS Circuit Breaker 30A Window Motor - Driver, Window Motor - Left Rear, Window Motor - Passenger, Window Motor - Right Rear
DIFF PUMP Relay - Differential Cooler Pump
FUEL PUMP Relay - Fuel Pump and Sender Assembly
INT LAMP Relay - Courtesy Lamp - Left Rear Door, Courtesy Lamp - Rear Compartment, Courtesy Lamp - Right Rear Door, I/P Compartment Lamp, I/P Courtesy Lamp - Left, I/P Courtesy Lamp - Right, Overhead Courtesy/Reading Lamps - Front, Overhead Courtesy/Reading Lamps - Rear, Rear Integration Module (RIM), Sunshade - Left, Sunshade - Right
REAR DEFOG Relay - Rear Window Defogger
REAR/FOG Relay - Fog Lamp - Left Rear, Fog Lamp - Right Rear
RUN/CRNK Relay - AIRBAG/IGN Fuse, HTD STR Fuse, RIM/RPA/ISRVM/CLM Fuse, RUN/CRNK Fuse
STOP LAMP Relay - Tail Lamp - Left, Tail Lamp - Right
TRUNK DIODE - Courtesy Lamp - Rear Compartment
Fig 12: Fuse Block - Right Rear Top View
GM1967963Courtesy of GENERAL MOTORS CORP.
Fig 13: Fuse Block - Right Rear - Wire Entry
GM882688Courtesy of GENERAL MOTORS CORP.
Fuse Block - Right Rear - Wire Entry

Pin Wire Circuit Function
CB1 3 RD/WH 1040 Battery Positive Voltage
CB2 - - Battery Positive Voltage Bus 2
FD1 0.35 OG/BK 737 Rear Compartment Lamp Control
FD2 0.35 OG/BK 744 Rear Compartment Lid Ajar Switch Signal
0.35 OG/BK 744 Rear Compartment Lid Ajar Switch Signal
FL1 5 GY 911 Battery Positive Voltage
FL2 - - Battery Positive Voltage Bus 2
FL3 - - Battery Positive Voltage Bus 1
FL4 - - Not Used
FU1 0.8 RD/WH 1540 Battery Positive Voltage
FU2 - - Battery Positive Voltage Bus 2
FU3 0.35 RD/WH 540 Battery Positive Voltage
0.35 RD/WH 540 Battery Positive Voltage (UFT)
FU4 - - Battery Positive Voltage Bus 2
FU5 2 RD/WH 2640 Battery Positive Voltage (CF5)
FU6 - - Battery Positive Voltage Bus 2
FU7 0.35 L-BU 20 Battery Positive Voltage
FU8 - - Battery Positive Voltage Bus 2
FU9 0.5 YE 909 Battery Positive Voltage (TT7 or TT8)
FU10 - - Battery Positive Voltage Bus 2
FU11 0.8 RD/WH 2540 Battery Positive Voltage (KA1 or KB6)
0.8 RD/WH 2540 Battery Positive Voltage (U2K)
FU12 - - Battery Positive Voltage Bus 2
FU13 1 RD/WH 2240 Battery Positive Voltage
FU14 - - Battery Positive Voltage Bus 2
FU15 - - Ignition Voltage Bus
3 PU 2000 Ignition Voltage
FU16 0.35 PK 1139 Ignition Voltage
FU17 - - Ignition Voltage Bus
FU18 0.5 PK 1339 Ignition Voltage
0.5 PK 1339 Ignition Voltage
FU19 - - Ignition Voltage Bus
FU20 0.5 PK 1639 Ignition Voltage
FU21 - - Ignition Voltage Bus
FU22 0.8 PK 1239 Ignition Voltage
FU23 - - Battery Positive Voltage Bus 1
FU24 0.5 D-GN 910 Battery Positive Voltage
FU25 - - Battery Positive Voltage Bus 1
FU26 0.5 RD/WH 740 Battery Positive Voltage
FU27 - - Battery Positive Voltage Bus 1
FU28 0.35 RD/BK 442 Battery Positive Voltage
0.35 PK 442 Battery Positive Voltage (UFL)
FU29 - - Battery Positive Voltage Bus 1
FU30 3 L-GN 908 Battery Positive Voltage
FU31 - - Battery Positive Voltage Bus 1
FU32 - - Not Used
FU33 - - Battery Positive Voltage Bus 1
FU34 0.35 RD/BK 542 Battery Positive Voltage
R1-R5 - - Not Used
R6 0.35 OG 300 Ignition Voltage
R7 5 GY 911 Battery Positive Voltage
R8 0.5 PU 293 Rear Defog Element Supply Voltage
R9 - - Not Used
R10 0.35 WH 193 Rear Defog Relay Control
R11 0.35 BK 1050 Ground
R12 3 L-GN 908 Battery Positive Voltage
R13 3 GY 120 Fuel Pump Supply Voltage
R14 - - Not Used
R15 0.35 D-GN/WH 465 Fuel Pump Relay Control
R16 0.5 D-BU 910 Battery Positive Voltage
R17 0.5 D-BU 910 Battery Positive Voltage
0.5 D-BU 910 Battery Positive Voltage
R18 1 D-BU/WH 149 Courtesy Lamp Supply Voltage
R19 - - Not Used
R20 0.35 D-BU 1393 Courtesy Lamps Supply Voltage
R21 0.35 PK 3 Ignition Voltage
R22 - - Battery Positive Voltage Bus 1
R23 3 PU 2000 Ignition Voltage
R24 - - Not Used
R25 0.35 BK 1050 Ground
R26 - - Battery Positive Voltage Bus 1
R27-R30 - - Not Used
R31 0.5 PK 1639 Ignition Voltage (TT7 or TT8)
R32 0.5 YE 909 Battery Positive Voltage (TT7 or TT8)
R33 0.35 OG 122 Rear Fog Lamps Supply Voltage (TT7 or TT8)
R34 - - Not Used
R35 0.35 YE 1977 Rear Fog Lamp Relay Control (TT7 or TT8)
R36 0.35 BK 1050 Ground
R37 0.35 L-BU 20 Battery Positive Voltage
R38 0.35 L-BU 20 Stop Lamp Supply Voltage
R39 - - Not Used
R40 0.35 WH 17 Stop Lamp Supply Voltage
S1 0.5 PK 1639 Ignition Voltage
S2 0.35 PK 1639 Ignition Voltage
S3 0.5 PK 1639 Ignition Voltage
S4 0.35 BK 1050 Ground
S5 0.35 BK 1050 Ground
S6 0.35 BK 1050 Ground
S7 0.35 BK 1050 Ground
S8 0.5 PK 1339 Ignition Voltage
S9 0.35 PK 1339 Ignition Voltage
S10 0.35 PK 1339 Ignition Voltage (JL7)
0.35 PK 1339 Ignition Voltage (JL7)
S11 0.35 PK 1339 Ignition Voltage
S12 0.35 L-BU 20 Stop Lamp Supply Voltage
S13 0.35 L-BU 20 Stop Lamp Supply Voltage
0.35 L-BU 20 Stop Lamp Supply Voltage (TT7 or TT8 or V92)
S14 0.35 L-BU 20 Stop Lamp Supply Voltage
S15 1 RD/WH 2240 Battery Positive Voltage
S16 0.8 RD/WH 2240 Battery Positive Voltage (UE1)
S17 1 RD/WH 2240 Battery Positive Voltage
S18 0.35 PK 1139 Ignition Voltage
S19 0.5 PK 1139 Ignition Voltage
S20 0.5 PK 1139 Ignition Voltage
S21 0.5 PK 1139 Ignition Voltage
S22 0.5 PK 1339 Ignition Voltage
S23 0.35 PK 1339 Ignition Voltage (JL7)
0.35 PK 1339 Ignition Voltage (UA2)
S24 0.35 PK 1339 Ignition Voltage (JL7)
0.35 PK 1339 Ignition Voltage (UA2 or UA7)
S25 0.35 PK 1339 Ignition Voltage
S26-S28 - - Not Used
Connector Part Information 
  • OEM: 7254-5567-30
  • Service: See Catalog
  • Description: Rear PDB Base Assembly (BK)
Terminal Part Information 
  • Pins: CB1, CB2, FL1-FL4, FU2-FU19, FU23-FU27, FU29-FU34, R1-R3, R5-R8, R10-R13, R15-R17, R20-R23, R25-R28, R30-R33, R35-R38, R40, S12-S14
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
  • Pins: FU1, FU28, S9- S11, S20-S28
  • Terminal/Tray: 7116-4020/11
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 15315247/J-35616-18 (BK)
  • Pins: R18, S1-S6
  • Terminal/Tray: 7116-4021/11
  • Core/Insulation Crimp: 2/A
  • Release Tool/Test Probe: 15315247/J-35616-18 (BK)
Fig 14: Fuse Block - Right Rear Connector
GM1283880Courtesy of GENERAL MOTORS CORP.
Fuse Block - Right Rear Connector

Pin Wire Circuit Function
1 5 RD/BK 2 Battery Positive Voltage
2 5 RD/BK 2 Battery Positive Voltage
Connector Part Information 
  • OEM: 7123-4123-30
  • Service: 88953301
  • Description: 2-Way F L-Type (BK)
Terminal Part Information 
  • Terminal/Tray: 7116-3250/10
  • Core/Insulation Crimp: G/3
  • Release Tool/Test Probe: 12094430/J-35616-22 (RD)
Fig 15: Fuse Block - Steering Column
GM1743144Courtesy of GENERAL MOTORS CORP.
Fuse Block - Steering Column

Pin Wire Circuit Function
1 0.35 YE 1491 Battery Positive Voltage
2 0.35 YE 1491 Battery Positive Voltage
Connector Part Information 
  • OEM: E-5981
  • Service: 19115609
  • Description: 2-Way F Single Minifuse Module Series (BK)
Terminal Part Information 
  • Terminal/Tray: 772216-HK200/25
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)
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