CIRCUIT
NO.
WIRE
SIZE
COLOR
CAVITY
DESCRIPTION
4 3 2
.8
LT GRN
A1
MANIFOLD ABSOLUTE PRESS
4 1 7
.8
DK BLU
A2
THROTTLE POSITION SWITCH
4 1 0
.8
YEL
A3
COOLANT TEMP. SENSOR
A 4
NOT USED
A5
NOT USED
451
.8
WHT/BLK
A6
ASS Y LINE DIAG./LINK
A7
NOT USED
121
.8
WHT
A8
ENGINE SPEED SENSOR
4 3 7
.8
BRN
A9
VEHICLE SPEED SENSOR
4 8 8
.8
LT GRN
A 1 0
ASS Y LINE DIAG./LINK
A1 1
NOT USED
4 1 6
.8
GRA
A 12
THROTTLE POSITION SWITCH
& MANIFOLD ABSOLUTE
PRESS.
B1
NOT USED
B2
NOT USED
B3
NOT USED
B4
NOT USED
B5
NOT USED
B6
NOT USED
B7
NOT USED
B8
NOT USED
B9
NOT USED
B10
NOT USED
B 1 1
NOT USED
B12
NOT USED
ELECTRONIC CONTROL MODULE
LH6 —DIESEL
SECTION D-PAG E 48
CIRCUIT
NO.
WIRE
SIZE
COLOR
CAVITY
DESCRIPTION
4 5 2
.8
BLK
C1
SYSTEM RETURN
15 0
.8
BLK
C2
SYSTEM GROUND
C3
NOT USED
C4
NOT USED
* 4 2 2
.8
TAN/BLK
C5
TORQUE CONVERTER CLUTCH
9 0 5
.8
BRN
C6
COLD ADVANCE/GLOW PLUG
INHIBIT RELAY
C7
NOT USED
C8
NOT USED
C9
NOT USED
4 3 5
.5
GRA
C IO
EGR DIAGNOSTIC CONNECTOR
9 0 2
.8
LT BLU
C1 1
EGR SOLENOID
5 3 8
.8
DK GRN
C12
EPR SOLENOID
C13
NOT USED
4 3 9
.8
PNK/BLK
C 14
12V IGNITION FUSED
C15
NOT USED
4 4 0
.8
ORN
C16
12V BATTERY FUSED
D1
NOT USED
D2
NOT USED
D3
NOT USED
D4
NOT USED
D5
NOT USED
D6
NOT USED
D7
NOT USED
D8
NOT USED
D9
NOT USED
D10
NOT USED
D1 1
NOT USED
D12
NOT USED
D13
NOT USED
D 14
NOT USED
D15
NOT USED
D16
NOT USED
*
AUTO TRANS ONLY
Summary of Contents for ST 350 1988
Page 1: ...1988 LIGHT DUTY TRUCK WIRING DIAGRAM BOOKLET ST 350 88...
Page 2: ......
Page 18: ......
Page 20: ...V SECTION A PAGE 10...
Page 33: ......
Page 38: ...SECTION A PAGE 28...
Page 41: ......
Page 47: ...SECTION A PAGE 37...
Page 50: ......
Page 54: ......
Page 57: ...TRANSFER CASE SPEED SENSOR FOUR WHEEL DRIVE SECTION A PAGE 47...
Page 76: ......
Page 87: ...FUSE BLOCK START L B 4 V 6 L03 L05 L 1 9 V 8 SECTION B PAGE 13...
Page 89: ...SPLICE 33 FUSE BLOCK START 8 CYL LT9 N A 5 V 8 SECTION B PAGE 15...
Page 90: ...SECTION B PAGE 16...
Page 91: ...FORWARD REAR BATTERY BATTERY FUSE BLOCK START LL4 LH6 DIESEL SECTION B PAGE 17...
Page 100: ...GLOW PLUGS LL4 DIESEL SECTION B PAGE 26...
Page 101: ...PRODUCTION JUNCTION BLOCK GLOW PLUGS LH6 DIESEL SECTION B PAGE 27...
Page 104: ......
Page 124: ...43 8 YEL INSTRUMENT PANEL LAMPS TELLTALE SECTION B PAGE 50...
Page 125: ...ILLUM ILLUM ILLUM ILLUM ILLUM 43 8 YEL INSTRUMENT PANEL LAMPS GAGE SECTION B PAGE 51...
Page 128: ......
Page 131: ...IGNITION SWITCH IN D IC ATO R LA M PS TELLTALE S E C T IO NB PAGE5 7...
Page 133: ...8917693 IGNITION SWITCH INDICATOR LAMPS GAGE SECTION B PAGE 59...
Page 141: ...60 1 0 ORN BLK POWER DOOR LOCKS W ITH DELAY MODULE RPO AU 3 SECTION B PAGE 67...
Page 144: ...SECTION B PAGE 70...
Page 169: ......
Page 171: ..._ n n _ BATTERY FRONT FUSE BLOCK REAR START 6 CYL LL2 SECTION C PAGE 19...
Page 172: ......
Page 173: ...CONVENIENCE CENTER FRONT REAR FUSE BLOCK IGNITION 4 CYL SECTION C PAGE 21...
Page 177: ...FRONT REAR FUSE BLOCK IGNITION 6 CYL LB4 SECTION C PAGE 25...
Page 181: ......
Page 185: ...452 8 BLK 452 8 BLK TO ECM LN8 4 CYL ELECTRONIC CONTROL MODULE INPUTS SECTION C PAGE 33...
Page 187: ...TO ECM 120 1 0 TAN WHT 30 8 PNK LN8 4 CYL ELECTRONIC CONTROL MODULE OUTPUTS SECTION C PAGE 35...
Page 188: ...SECTION C PAGE 36...
Page 194: ...SECTION C PAGE 42...
Page 200: ...SECTION C PAGE 48...
Page 218: ......
Page 223: ...RADIO EQUIPMENT SECTION C PAGE 71...
Page 228: ...VANITY MIRROR RPO D64 SECTION C PAGE 76 12047781 141 8 BRN WHT H H VISOR VANITY MIRROR...
Page 242: ......
Page 248: ...SECTION D PAGE 6...
Page 263: ...TO PARK BRAKE WARNING SW l P CLUSTER CONN FUSE BLOCK START L25 V6 LE8 LT9 V8 SECTION D PAGE 21...
Page 269: ...CONVENIENCE CENTER l P CLUSTER CONN FUSE BLOCK IGNITION L05 L1 9 V 8 SECTION D PAGE 27...
Page 272: ...SPLICE 150 4 v J U U i FUEL SHUT OFF VALVE SEE PAGE GLOW PLUGS L L 4 DIESEL SECTION D PAGE 30...
Page 282: ...SECTION D PAGE 40...
Page 286: ......
Page 287: ...TO ECM ELECTRONIC CONTROL MODULE OUTPUTS L05 L19 V8 SECTION D PAGE 45...
Page 288: ...SECTION D PAGE 46...
Page 300: ...SECTION D PAGE 58...
Page 322: ...SECTION D PAGE 80...
Page 336: ...POWER DISTRIBUTION L 2 5 6 CYL BODY STYLE 4 2 SECTION E PAGE 2 FRONT FUSE BLOCK REAR...
Page 338: ...POWER DISTRIBUTION LT9 V 8 BODY STYLE 4 2 SECTION E PAGE 4 FUSE BLOCK REAR...
Page 339: ...3 2 BLK BATT CABLE FRONT FUSE BLOCK REAR POWER DISTRIBUTION L 0 5 V 8 SECTION E PAGE 5...
Page 349: ...WIPER WASHER SECTION E PAGE 15...
Page 351: ...pS A s L BATTERY FRONT REAR START IGNITIOIM LE8 V8 BODY S T Y L E 3 2 SECTION E PAGE 17...
Page 352: ...START IGNITION LT 9 V 8 BODY S T Y L E 4 2 SECTION E PAGE 18 FRONT REAR...
Page 356: ...SECTION E PAGE 22...
Page 363: ...FUEL SHUT OFF VALVE 12020274 GLOW PLUGS LL4 DIESEL SECTION E PAGE 29...
Page 365: ...TO ECM ELECTRONIC CONTROL M O D U LE IN P U T S L 0 5 V 8 SECTION E PAGE 31...
Page 367: ...TO ECM 439 8 PNK BLK ELECTRONIC CONTROL M O D U LE O U T P U T S L 0 5 V 8 SECTION E PAGE 33...
Page 374: ...SECTION E PAGE 40...
Page 386: ......
Page 387: ...l P CLUSTER CONN R H TAIL STOP 8 9 1 7 8 1 8 DIRECTIONAL LAMP HAZARD LAMPS SECTION F PAGE 9...
Page 389: ...R H TAIL STOP 8 9 1 7 8 1 8 DIRECTIONAL LAMP DIRECTIONAL LAMPS SECTION F PAGE 11...
Page 393: ...1 9 0 BLK l P JUNCTION BLOCK START 6 CYL SECTION F PAGE 15...
Page 396: ...ELECTRONIC CONTROL MODULE CONNECTORS TO STARTER IGNITION 6 CYL SECTION F PAGE 18...
Page 406: ...SECTION F PAGE 28...
Page 412: ...SECTION F PAGE 34...
Page 422: ......
Page 423: ...l P CLUSTER CONN INSTRUMENT PANEL LAMPS ELECTRONIC SECTION F PAGE 45...
Page 441: ......
Page 453: ......
Page 454: ...CHEVROLET I i...