Electrical - Special Production Bulkhead Connectors
Bulletin No. I 83-32File In Group 18
Number 25
Date Jan. '83
SPECIAL PRODUCTION BULKHEAD CONNECTORS
A special production trial is being run on 100 1983 Eldorados and on 100 1983 C-cars involving the installation of certain wire harnesses using newly designed bulkhead connectors. On the involved vehicles, these harnesses are identified by a label referencing this bulletin attached to the bulkhead connectors. The harness circuits are identical to the normal 1983 circuits shown in the 1983 Service Information Manual except they are indexed differently in the bulkhead connectors.
When investigating or troubleshooting the affected circuits, it is necessary to refer to the connector indexing included in this bulletin. On the "C"-series vehicles, the affected connectors are located at the center bulkhead. On the Eldorado vehicles, the affected connectors are located at the center bulkhead and left hand bulkhead. If repairs necessitate complete harness replacement, the following service harnesses are available through GMWDD:
"C"-Series Vehicles
Instrument Panel Harness - Gasoline ...................................12028090 Instrument Panel Harness - Diesel .....................................12036366 Engine Harness-Gasoline................................................12028092 Engine Harness-Diesel..................................................12028093 Underhood Harness......................................................12028094
"E"-Series Vehicles (Gasoline Only)
Instrument Panel Harness ...............................................12028096 Engine Harness .........................................................12028097 Underhood Harness.......................................................12028099 Forward Lamp Harness....................................................12028098 Dash Harness............................................................12028095
"C"-CAR-CENTER BULKHEAD-DFI:
CAVITY CIRCUIT # WIRE COLOR CIRCUIT
A1 976 ORANGE/BLACK BLOWER DRIVE
A2 -
A3 974 DARK BLUE/WHITE ECC PROGRAMMER, CONTROL PANEL, AND POWER MODULE, 8V
A4 25 BROWN/WHITE VOLTAGE REGULATOR CONTROLLED REFERENCE VOLTAGE
A5 429 DARK GREEN/YELLOW ECM TO AIR DIVERT SOLENOID, FEED
A6 31 TAN OIL PRESSURE
A7 120X LIGHT BLUE FUEL PUMP FEED
B1 -
B2 204 DARK BLUE A/C COMPRESSOR CLUTCH COIL
B3 -
B4 438 DARK GREEN/WHITE ECM TO TRANSMISSION, FOURTH GEAR
B5 403 DARK BLUE/WHITE CRUISE CONTROL VACUUM SOLENOID FEED
B6 402 LIGHT GREEN CRUISE CONTROL POWER SOLENOID FEED
C1 -
C2 50 BROWN IGNITION SWITCH "ON" CONTROLLED, FUSED FEED
C3 -
C4 919 NATURAL WHITE CRUISE CONTROL VACUUM SOLENOID
C5 436 BROWN ECM TO AIR SWITCH SOLENOID, FEED
C6 -
D1 -
D2 977C GRAY/BLACK COMPRESSOR DRIVE
D4 3 PINK IGNITION SWITCH "ON AND CRANK" CONTROLLED, UNFUSED FEED
D5 204 DARK BLUE A/C COMPRESSOR CLUTCH COIL
E1 -
E2 145 DARK GREEN POWER ANTENNA UP - RELAY CONTROLLED FEED
E4 6 PURPLE STARTER SOLENOID FEED
E5 422 TAN/BLACK ECM TO TCC SOLENOID
F1 -
F2 977A GRAY/BLACK ECM TO COMPRESSOR CYCLING SWITCH
F3 -
F4 426 DARK BLUE ECM TO ISC MOTOR RETRACT
F5 639A PINK/BLACK IGNITION SWITCH "ON AND CRANK" CONTROLLED, FUSED FEED
F6 831 BROWN ECM TO EGR SOLENOID, FEED
G1 160 NATURAL WHITE POWER ANTENNA DOWN
G2 -
G3 -
G4 -
G5 450 BLACK/WHITE ECM POWER GROUND
G6 425 LIGHT BLUE ECM TO ISC MOTOR EXTEND
H1 -
H2 -
H3 161 GRAY POWER ANTENNA UP
H4 420 PURPLE ECM TO BRAKE SWITCH
H5 975 LIGHT GREEN/BLACK ENGINE METAL TEMPERATURE SENSOR
H6 333 TAN BRAKE VACUUM SWITCH FEED
"C"-CAR-CENTER BULKHEAD-DIESEL:
CAVITY CIRCUIT # WIRE COLOR CIRCUIT
A1 976 ORANGE/BLACK BLOWER DRIVE
A2 -
A3 974 DARK BLUE/WHITE ECC PROGRAMMER, CONTROL PANEL, AND POWER MODULE, 8V
A4 25A BROWN/WHITE VOLTAGE REGULATOR CONTROLLED REFERENCE VOLTAGE
A5 905 DARK BLUE HEATER TURN-ON SWITCH
A6 31 TAN OIL PRESSURE
A7 -
B1 -
B2 204 DARK BLUE A/C COMPRESSOR CLUTCH COIL
B3 -
B4 35 DARK GREEN ENGINE COOLANT TEMPERATURE SWITCH
B5 403 DARK BLUE/WHITE CRUISE CONTROL VACUUM SOLENOID FEED
B6 402 LIGHT BLUE CRUISE CONTROL POWER SOLENOID FEED
C1 -
C2 50 BROWN IGNITION SWITCH "ON" CONTROLLED, FUSED FEED
C3 -
C4 903 NATURAL WHITE LAMP CONTROL RELAY FEED
C5 910 LIGHT GREEN/BLACK OUTSIDE TEMPERATURE SENSOR
C6 -
D1 -
D2 977 GRAY/BLACK COMPRESSOR DRIVE
D4 3A PINK IGNITION SWITCH "ON AND CRANK" CONTROLLED, UNFUSED FEED
GROUND
D5 204 DARK BLUE A/C COMPRESSOR CLUTCH COIL
E1 -
E2 145 DARK GREEN POWER ANTENNA UP - RELAY CONTROLLED FEED
E4 6 PURPLE STARTER SOLENOID FEED
E5 935 DARK GREEN COOLANT SWITCH TO DIODE ASSEMBLY
F1 -
F2 -
F3 -
F4 25Y BROWN POST IGNITION GLOW PLUG FEED
F5 439 PINK IGNITION SWITCH "ON AND CRANK" CONTROLLED, FUSED FEED
F6 422 TAN/BLACK ALDL TO TCC SOLENOID
G1 160 NATURAL WHITE POWER ANTENNA DOWN
G2 -
G3 -
G4 -
G5 151 BLACK GROUND
G6 901 YELLOW GLOW PLUG RELAY FEED
H1 -
H2 -
H3 161 GRAY POWER ANTENNA UP
H4 420 PURPLE TCC SWITCH TO VACUUM RELEASE VALVE
H5 975 LIGHT GREEN/BLACK ENGINE METAL TEMPERATURE SENSOR
H6 990 BLACK OUTSIDE TEMPERATURE SENSOR
"E"-CAR-CENTER BULKHEAD-DFI:
CAVITY CIRCUIT # WIRE COLOR CIRCUIT
A1 976 ORANGE/BLACK BLOWER DRIVER
A2 - EMPTY
A3 974A, B DARK BLUE/WHITE ECC PROGRAMMER, CONTROL PANEL, AND POWER MODULE, 8V
A4 25 BROWN VOLTAGE REGULATOR CONTROLLED REFERENCE VOLTAGE
A5 429 BLACK/PINK ECM TO AIR DIVERT SOLENOID, FEED
A6 31 TAN OIL PRESSURE
A7 120X LIGHT BLUE FUEL PUMP FEED
B1 909C LIGHT GREEN/BLACK ECC TEMPERATURE SENSOR STRING
B2 204 DARK BLUE A/C COMPRESSOR CLUTCH COIL
B3 - EMPTY
B4 438 DARK GREEN/WHITE ECM TO TRANSMISSION, FOURTH GEAR
B5 403A, B DARK BLUE/WHITE CRUISE CONTROL VACUUM SOLENOID FEED
B6 402 LIGHT GREEN CRUISE CONTROL POWER SOLENOID FEED
C1 - EMPTY
C2 50E BROWN IGNITION SWITCH "ON" CONTROLLED, FUSED FEED
C3 - EMPTY
C4 919A, B NATURAL WHITE CRUISE CONTROL VACUUM SOLENOID
C5 436A, B BROWN ECM TO AIR SWITCH SOLENOID, FEED
C6 - EMPTY
D1 - EMPTY
D2 977X GRAY/BLACK COMPRESSOR DRIVE
D4 3C PINK IGNITION SWITCH "ON AND CRANK" CONTROLLED, UNFUSED FEED
D5 204 DARK BLUE A/C COMPRESSOR CLUTCH COIL
E1 - EMPTY
E2 145 DARK GREEN POWER ANTENNA UP - RELAY CONTROLLED FEED
E4 6E PURPLE STARTER SOLENOID FEED
E5 422A, B TAN/BLACK ECM TO TCC SOLENOID
F1 - EMPTY
F2 977A, B GRAY/BLACK ECM TO COMPRESSOR CYCLING SWITCH
F3 - EMPTY
F4 426 DARK BLUE ECM TO ISC MOTOR RETRACT
F5 639C PINK/BLACK IGNITION SWITCH "ON AND CRANK" CONTROLLED, FUSED FEED
F6 831 BROWN ECM TO EGR SOLENOID, FEED
G1 160 NATURAL WHITE POWER ANTENNA DOWN
G2 - EMPTY
G3 909B LIGHT GREEN/BLACK ECC TEMPERATURE STRING
G4 - EMPTY
G5 450B, C BLACK/WHITE ECM POWER GROUND
G6 425 LIGHT BLUE ECM TO ISC MOTOR EXTEND
H1 - EMPTY
H2 - EMPTY
H3 161 GRAY POWER ANTENNA UP
H4 420 PURPLE ECM TO BRAKE SWITCH
H5 975 LIGHT GREEN/BLACK ENGINE METAL TEMPERATURE SWITCH
H6 333 TAN BRAKE VACUUM SWITCH FEED
"E"-CAR-LEFTHAND BULKHEAD-DFI:
CAVITY CIRCUIT # WIRE COLOR CIRCUIT
A1 966 DARK GREEN GUIDEMATIC
A2 923A, B YELLOW ELC TEST POINT
A3 840 ORANGE ELC COMPRESSOR EXHAUST SOLENOID FEED
A4 - EMPTY
A5 - EMPTY
A6 - EMPTY
A7 - EMPTY
B1 93 NATURAL WHITE WINDSHIELD WIPER MOTOR FEED
B2 15 DARK BLUE R.H. INDICATOR AND FRONT DIRECTIONAL LAMPS
B3 95 DARK GREEN/WHITE PULSE WIPER SWITCH CONTROLLED GROUND
B4 - EMPTY
B5 - EMPTY
B6 2H YELLOW BATTERY FEED TO HEADLAMPS, UNFUSED
C1 57 ORANGE L.H. CORNERING LAMP FEED
C2 9B BROWN TAIL, LICENSE, PARK AND SIDE MARKER LAMP FEED
C3 10 YELLOW DIMMER SWITCH FEED
C4 40 ORANGE BATTERY, FUSED FEED
C5 - EMPTY
C6 - EMPTY
D1 94A, B PINK WINDSHIELD WASHER SWITCH TO GROUND
D2 11 LIGHT GREEN HEADLAMP HIGH-BEAM FEED
D4 2C RED BATTERY FEED TO IGNITION SWITCH, UNFUSED
D5 33 TAN/WHITE BRAKE WARNING LIGHT
E1 29 DARK GREEN HORN FEED
E2 12 TAN HEADLAMP LOW-BEAM SWITCH
E4 2F RED BATTERY FEED TO FUSE BLOCK, UNFUSED
E5 94 PINK WINDSHIELD WASHER SWITCH TO WASHER
F1 92 PURPLE WINDSHIELD WIPER HIGH
F2 91 GRAY WINDSHIELD WIPER LOW
F3 - EMPTY
F4 - EMPTY
F5 - EMPTY
F6 - EMPTY
G1 87 GRAY RESUME SOLENOID, BRAKE SWITCH CONTROLLED FEED
G2 58 BLACK/WHITE R.H. CORNERING LAMP FEED
G3 925 DARK GREEN ELC COMPRESSOR MOTOR FEED
G4 - EMPTY
G5 - EMPTY
G6 99 BLACK/WHITE WINDSHIELD WIPER LOW FLUID
H1 922 NATURAL WHITE ELC COMPRESSOR EXHAUST SOLENOID RETURN
H2 14A, B LIGHT BLUE L.H. INDICATOR AND FRONT DIRECTIONAL LAMPS
H3 - EMPTY
H4 2G RED BATTERY FEED TO ECM, UNFUSED
H5 - EMPTY
H6 - EMPTY