Chevrolet R-V 1989 Wiring Diagrams
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Chevrolet R-V 1989 Wiring Diagrams

Chevrolet R-V 1989 Wiring Diagrams

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Enlarged version
X-8940
©1988 General Motors Corporation
August, 1988
AH rights reserved
Printed in U.S.A.
1989
R-V, P TRUCK
MODELS
When reference is made in this manual to a brand name, number, or specific tool, an equivalent product may
be used in place of the recommended item
All information, illustrations, and specifications contained in this manual are based on the latest product
information available at the time of publication approval. The right is reserved to make changes at any time
without notice.
No part of this publication may be reproduced, stored in any retrieval system or transmitted, in any form or by
any means, including but not limited to electronic, mechanical, photocopying, recording or otherwise, without the
prior written permission of the GMC Truck Division of General Motors Corp. This includes all text, illustrations,
tables and charts.

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  • Page 1 1989 WIRING DIAGRAMS R-V, P TRUCK MODELS When reference is made in this manual to a brand name, number, or specific tool, an equivalent product may be used in place of the recommended item All information, illustrations, and specifications contained in this manual are based on the latest product information available at the time of publication approval.
  • Page 2 WIRING DIAGRAMS 2 DESCRIPTION WIRING DIAGRAMS All diagrams in this manual are based on the latest product information at the time of publication approval. The right is reserved to make changes at any time without notice. SUBJECT PAGE Description Tracing Circuits Baste Electric Circuits Circuit Diagnosis Abbreviation List...
  • Page 3 WIRING DIAGRAMS 5 WIRING DIAGRAMS 6 path. For example the switch controlling the headlights is at the power end of the circuit while the door switch controlling the domelight completes the ground path. Relays are remotely controlled switches. They are used in high current circuits and in circuits controlled by sensors.
  • Page 4 WIRING DIAGRAMS 7 WIRING DIAGRAMS 8 GROUNDED CIRCUIT(Figure 10) EFE—Early Fuel Evaporation PK—Park A ground circuit is like a short circuit but the current EGR—Exhaust Gas Recirculation PLR—Puller flows directly into a ground circuit that is not part of the ELEC—Electric PNKf-PInk original circuit.
  • Page 5 WIRING DIAGRAMS 10 WIRING DIAGRAMS 9 DIAGNOSTIC TOOLS 50. Power Source VOLTMETER SCALE: 0 Volts through 15 Volts 51. Circuit Breaker 52. Switch (Closed) 40. Power Source A = 3 Volts 30. Power Source 53. Voltmeter 41. Circuit Breaker B = 7 Volts 31 Circuit Breaker 54.
  • Page 6 WIRING DIAGRAMS 11 WIRING DIAGRAMS 12 Wiring harnesses are joined by using a multiple plug WIRE SIZE With the low current and voltage levels found in some and receptacle connector block, or a terminal post circuits, it is important that the best possible bond at all CONVERSION TABLE chassis junction block.
  • Page 7 WIRING DIAGRAMS 13 WIRING DIAGRAMS 14 90. Jacket 91. Twisted Wires 92. Splice Clip 93. Crimp and Solder 94. Electrical Tape Wrap 95,. Outer Electrical Tape Wrap. B-06230 100. Jacket Figure 20 Twisted Wire Repair 101. Aluminum/Mylar Tape 102. Drain Wire 4.

  • Page 8: Special Tools

    WIRING DIAGRAMS 15 4. Aluminum/mylar tape by wrapping and taping. 5. Drain wire with a splice clip (106). Crimp and solder the splice clip. 6. Outer jacket electrical tape wrap (107). SPECIAL TOOLS 1 Weather-Pack II Terminal Remover 2. Electrical Terminal Remover 3.

  • Page 9: Table Of Contents

    1989 R/V TRUCK PAGE DESCRIPTION PAGE DESCRIPTION FUSE BLOCK DETAIL ECM CHART (DIESEL) POWER DISTRIBUTION (GASOLINE) 44-45 ELECTRONIC CONTROL MODULE (ECM)-OUTPUTS (DIESEL) POWER DISTRIBUTION (DIESEL) ELECTRONIC CONTROL MODULE (ECM)-INPUTS (DIESEL) AUXILIARY BATTERY (TP2) TRANSMISSION CONVERTER CLUTCH DETENT SOLENOID HEADLAMPS & PARKING LAMPS AUTOMATIC TRANSMISSION KICKDOWN SOLENOID (M40) 9-10 MARKER LAMPS...
  • Page 17 R.H. HEADLAMP R.H. SIDE MARKER SWITCH SIDE MARKER LAMP LAMP 6294015 R.H. TAIL. STOP & DIRECTIONAL LAMP TO l/P ► CLUSTER 9 .8 BRN CONN. SPLICE 9 R.H. PARK LAMP BACKUP SHEET LAMP METAL GROUND SPLICE 150 LICENSE LAMP SPLICE 150 BACKUP LAMP 150 .8 BLK...
  • Page 18 R.H. HEADLAMP WIDESIDE PICK-UP SIDE MARKER SWITCH R.H. (R05) ONLY LAMP SIDE MARKER LAMP 6294015 R.H. FRONT / ^ " T \ . REAR CLEARANCE U M i* CLEARANCE CLE / LAMP U— U LAMP 6294015 6294015 R.H. TAIL. STOP & DIRECTIONAL LAMP R.H.
  • Page 22 FROM R.H SIDE MARKER LAMP FROM RH 150 8 BLK FRONT & REAR CLEARANCE LAMPS (RPO R05 ONLY) 19 8 DK GRN 8911029 T R.H. TAIL STOP & R.H. TAIL, STOP & DIRECTIONAL DIRECTIONAL LAMP LAMP (PART OF RH TAIL. STOP, DIRECTIONAL.
  • Page 24 FRAME R.H. R.H. 12034372 SIDE MARKER GROUND SIDE MARKER LAMP R.H. LAMP — f iS ^ ----- 1 51 3.0 BLK HEADLAMP CONNECTOR SHEET E D n a g g y METAL t z f e 6294015 GROUND 151 .8 BLK 4 1 9 TO l/P CLUSTER...
  • Page 25 SHEET 150 .8 BLK METAL GROUND FUSE BLOCK E D G) (5 H ffl IE E « « FROM SIDE R.H. TAIL, STOP & SPLICE 150 MARKER LAMP DIRECTIONAL (s s i a ® e e «oo 150 .8 BLK - LAM P G 3 (3 (3 G B Q D S D O B •A T T...
  • Page 27 19 BLK- ■6-3.0 PPL- -33 .5 TAN/WHT- STARTER MOTOR SOLENOID d d i o 17^— --- TO PARK m p D BRAKE WARNING SW . JUNCTION Q □ 8911698 BLOCK Q D f a B u Q H l l/P CLUSTER CONN.
  • Page 29 TO A/C COMP 15 .8 BLK l/P CLUSTER CONN. IGNITION L 2 5 - V 6 SECTION A - PAGE 21 FUSE BLOCK...
  • Page 30 ELECTRONIC CONTROL MODULE CONNECTORS 9 S I G E N E R A TO R r----- 1 — p " ' ♦ ---- • I----------- \ |---- -— | > ----- h IGNITION LE8, L T 9 - V 8 SECTION A - PAGE 22...
  • Page 31 CONVENIENCE CENTER TO BRAKE SWITCH (MD8 ONLY) l/P CLUSTER CONN. IGNITION L 0 5 , L 1 9 - V 8 REAR SECTION A - PAGE 23 FUSE BLOCK...
  • Page 32 l/P CLUSTER CONN. GENERATOR IGNITION L 05 , L19 - V 8 REAR FUSE BLOCK SECTION A - PAGE 24...
  • Page 33 OXYGEN 439 .8 PNK/BLK SENSOR 412-.8 PPL THROTTLE POSITION TO COOLANT SENSOR TEMP SENSOR 412 .8 PPL SPLICE 4 5 2 452 A ______ 452 .8 BLK 452 .8 BLK ELECTRONIC 417 .8 DK BLU 417-.8 DK BLU CONTROL MODULE |»5l| 1 416 .8 GRA •...
  • Page 34 HOT FUEL HANDLING HOT FUEL HANDLING L 0 5 /L 1 9 —V8 SECTION A - PAGE 26...
  • Page 40 FRAME GROUND AUX FAN COOLING SW FROM RH HEADLAMP(S) PARK & DIR SIGNAL > LAMPS SHEET METAL 151 3.0 BLK GROUND 702 2.0 BLK/RED< •935 .8 DK GRN — |9 3 5 39 .8 PNK/BLK — \ 2 j -2 -2 .0 RED------- AUXILIARY 12010015 COOLING...
  • Page 43 RIGHT-HAND REAR SIDE DIVERT SOLENOID 150.8 BLK- ENGINE GROUND SPLICE 900 .8 YEL- 39 .8 PIMK/BLK. 39 .8 PNK/BLK - ENGINE SPLICE 900 ,rm I n— [ R 5I I5 9 1 900 .8 YEL 39 .8 PNK/BLK- AIR DIVERT SOLENOID 12040753 ( 3 0 | 1 31 l f 2 6 l l 3 6 H 9 7 l f 9 T | IGNITION SWITCH...
  • Page 44 RIGHT-HAND DIVERT SOLENOID ENGINE ENGINE TO 4 GRD STRAP- GROUND BODY GRD 936 .8 YEL- ► TO “ SERVICE 39 .8 PNK/BLK. ENGINE SOON’ LAMP 39 .8 PNK/BLK SPLICE 936 936 .8 YEL- AIR DIVERT SOLENOID 12040753 IGNITION SWITCH CONTROLLER GROUND TACHOMETER TO COIL 39 .8 PNK/BLK-...
  • Page 45 4 3 6 ENGINE GROUND ENGINE TO BODY RIGHT HAND -4-GRD STRAP. -436 .8 BRN- GROUND DIVERT ■900 .8 YEL- SOLENOID 12015792 I IP TO “ SERVICE ENGINE SOON’ -39 .8 PNK/BLK- LAMP 419-.8 BRN/WHT. DIRECT GROUND DIVERTER 900-.8 YEL-------- —...
  • Page 46 MANIFOLD THROTTLE -439 .8 PNK/BLK ABSOLUTE POSITION PRESSURE SENSOR SENSOR 452-.8 BLK -440-1.0 ORN- 417 .8 DK BLU 416 .8 GRA — -455- 8 BLK ----- 455 .8 BLK ---- -432 .8 LT GRN 432 .8 LT GRN -417-.8 DK BLU- 417- 8 DK BLU 416-.8 GRA —...
  • Page 47 -439 .8 PNK/BLK 439 .8 PNK/BLK ELECTRONIC CONTROL M O DULE-INPUTS L0 5 , L 1 9 - V 8 -439-.8 PNK/BLK SECTION A - PAGE 39...
  • Page 48 ELECTRONIC SPARK TIMING E.V.R.V. FOR L05 W/H.D & L19 ENGINE ONLY SWITCH ELECTRONIC CONTROL MODULE L05, L19-V 8 SECTION A - PAGE 40...
  • Page 49 ELECTRONIC CONTROL M O D U L E -O U T P U T S L 0 5 , L 1 9 -V 8 SECTION A - PAGE 41...
  • Page 50 WIRE CIRCUIT WIRE CIRCUIT COLOR CAVITY DESCRIPTION COLOR CAVITY DESCRIPTION SIZE SIZE 4 6 5 DK GRN/WHT FUEL PUMP RELAY DRIVE NOT USED NOT USED 4 3 6 AIR SWITCH SOLENOID NOT USED 4 4 4 LT GRN/BLK STEPPER COIL B LOW 4 3 5 EGR SOLENOID 4 4 3...
  • Page 51 CIRCUIT WIRE CIRCUIT WIRE COLOR CAVITY DESCRIPTION COLOR CAVITY DESCRIPTION SIZE SIZE 4 5 2 SYSTEM RETURN LT GRN M ANIFO LD ABSOLUTE PRESS 4 3 2 1 5 0 SYSTEM GROUND THROTTLE POSITION SW ITCH 4 1 7 DK BLU NOT USED CO O LANT TEMP.
  • Page 55 ■422- 8 TAN/BLK • ■ 446- 8 LT BLU — STOP LAMP SWITCH (MD8 ONLY) TRANSMISSION ELECTRONIC CONVERTER CLUTCH CONTROL MODULE SOLENOID CONNECTORS ■ OPENS IN CLOSES WITH 4TH GEAR INC. TEMP. . 12047948 12010649 12010503 TO INST. CLUSTER SPLICE "...
  • Page 56 422 .8 TAN/BLK- > 422 .8 TAN/BLK TRANSMISSION KICKDOWN L05 ONLY TO ECM SOLENOID L05/L19 ONLY SPLICE 422 ENGINE 55 .8 ORN- 422 .8 TAN/BLK L19 ONLY 422 .8 TAN/BLK 2984092 ----------39 .8 PNK/BLK £ 12047782 J 4 2 2 j 39 -—...
  • Page 57 GROUND BLOWER SWITCH DIODE (NOT USED WITH LE8, LT9, L25I ‘ 899 .5 CAPAC JUNCTION AIR CONDITIONING (RPO C60) BLOCK SECTION A - PAGE 49...
  • Page 58 BLOWER SWITCH 12004101 52-5.0 ORN •51-1.0 YEL- ■52-2.0 ORN- E S S l SPLICE 52 2977940 2977253 8900420 2977518 RESISTOR GROMMET 8911215 REAR BLOWER MOTOR GROUND ff) S ) (3 B (9 IB ID « « *■ 12004740 (3 d (5 B Q D 0 8 O D * °...
  • Page 59 RESISTOR BLOWER MOTOR I M a H U tell 2965019 l l T sffil □ 2977976 GROMMET ■ o r 8911217 12004067 -5 2 -2 .0 ORN- 51-2.0 YEL- ■51-2.0 YEL— 50-2.0 BRN 50-2.0 BRN -5 2 -2 .0 ORN- ■52-2.0 ORN------ •72-2.0 LT BLU- —...
  • Page 60 BLOWER SWITCH 51-2.0 YEL -952-2.0 DK GRN- GROMMET GROMMET 8905790 12004752 12015958 RESISTOR 1501 12004267 HOT IN \ r L BLOWER MOTOR AUXILIARY HEATER (RPO C36) SECTION A - PAGE 52...
  • Page 61 ILLUM ILLUM ILLUM ILLUM ILLUM l/P CIRC U IT RO UTIN G HEATER W IT H T A C H O M E TE R A/C CONTROL ASSEMBLY W /O - l/P CIRC U IT RO UTIN G W /O W IT H O U T T A C H O M E TE R BRAKE FROM...
  • Page 62 2 9 6 2 9 6 5 COOLANT TEMP SENDER COOLANT TEMP SENDER L05, L19. LT9,LE8, LH6,LL4 TO HOT FUEL HANDLING MODULE (L05. L19) TO CONVENIENCE CENTER TO BRAKE SWITCH (MD8) PRESSURE SENDER PRESSURE SENDER L19. L25, LE8, LH6, FUEL TANK SENDER L25.LE8,...
  • Page 63 ILLUM ILLUM ILLUM ILLUM ILLUM l/P CIRCUIT ROUTING WITH TACHOMETER W /O-l/P CIRCUIT ROUTING WITHOUT TACHOMETER FROM W/S WIPER WASHER SW C 1 2 0 ) ■120-1.0 TAN/WHT- ELECTRIC FUEL PUMP -30 .8 PNK----------- FUEL GAGE SENDING UNIT 12059473 L05/L19 INSTRUMENT PANEL GAGES SECTION A - PAGE 55 BLU OR PPL OR LT.
  • Page 64 TO GLOW PLUG RELAY & CONTROLLER----- TO AUTO INDICATOR LAMPS TRANS KICKDOWN SOLENOID SECTION A - PAGE 56 (M40)
  • Page 65 l/P CIRCUIT ROUTING WITH TACHOMETER W /O-l/P CIRCUIT ROUTING WITHOUT TACHOMETER 419 .8 BRN/WHT 33- 5 TAN/WHT 33 .5 TAN/WHT IGNITION SWITCH J S i A 1 ! ; i j \ INDICATOR LAM PS ---- I 1 1 1 ’ ^ 1 8917693 SECTION A - PAGE 57 <...
  • Page 66 ■39 .8 PIMK/BLK DIESEL ONLY FROM W/S WIPER WASHER SW FRONT REAR FUSE BLOCK SEAT BELT W ARNING BUZZER SECTION D -P A G E 6 4 SECTION A - PAGE 58...
  • Page 67 f & l 1 ^ 1 Q D ncm c z j n i a iso j □E lnE ill O D D CLUSTER CONN. □E U I n n d l □ Q D llE H ] 8900371 -3 3 .5 TAN/WHT- |3 0 0 | IGN BAT 3 ____...
  • Page 68 •141-.8 BRN/WHT 4-WD 141-.8 BRN/WHT- INDICATOR LAMP 6294974 -1 5 0 .8 BLK- — 150 .8 BLK- FRONT D A D GROUND FUSE BLOCK TRANSFER 150-.8 BLK CASE 156 .8 WHT ■ SWITCH 12004267 4-WD SHIFT ■150 .8 BLK- ■ n i LEVER LAMP >150 .8 BLK- V 1 0 0 ,2 0 0...
  • Page 69 CRUISE CONTROL MODULE CRUISE VENT VALVE CRUISE CONTROL VAC SPEED SENSOR CRUISE SERVO CRUISE SERVO ELECTRONIC CRUISE GROUND BRAKE SW. CRUISE ENGAGER SW. CRUISE ENGAGER SW. CRUISE CONTROL ACTIVATOR 8 4 - — O O— 8 3 - — O ►...
  • Page 70 RIGHT RIGHT REAR HAND DOOR DOOR JAMB JAMB SWITCH SWITCH 8911287 GROMMET 06 MODEL ONLY 6288872 FRONT DOME LAMP REAR DOME LAMP (06 MODEL ONLY) (43. 06 & 03 MODELS) 2973324 2973324 TERM vijQQQQQs TERM 40.1 ORN- 156-.8 WHT- -40-.8 ORN- SPLICE 40 -4 0 .8 ORN- 156 .8 WHT...
  • Page 72 TO ROOF -9 .8 BRN 9 .8 BRN MARKER LPS (RPO 401) RADIO EQUIPMENT (RPO UM 6, UP8) SECTION A - PAGE 64...
  • Page 73 2973384 FRONT SPEAKER 12004544 t r d 12004543 RADIO RECEIVER ® @ IS ® G O 1 5 H ® I E *"° a s ® ® ! ] •G* i.W % C=3B^ REAR FRONT FUSE BLOCK 150.8 BLK . b u s GROUND RADIO EQUIPMENT (RPO U63)
  • Page 75 12010366 12010366 GROMMET GROMMET c ir c u it — | ^BR EAKER 668-2.0 DK BLU © I “ .1 12004140 669-2.0 BRN- RIGHT REAR WINDOW MOTOR RIGHT REAR WINDOW SWITCH c ir c u it *2JBREAKER 668-2.0 DK BLU- [Q[J •...
  • Page 76 ^ 5 9 - ------- 1 50 3 .0 BLK } ---- — 150-3.0 BLK CUT OUT X F R A M E DE}------ 1 SWITCH " MOTOR 15300002 15300027 BRK GRN BLAZER ONLY □ 183 3.0 LT BLU- 60-3.0 ORN- 60 3.0 ORN/BLK- 183 3.0 LT BLU- 15300027 15300032...
  • Page 78 DOOR LOCK RELAY 12034343 /TH1 2984378 ■295-1.0 GRA- c ir c u it RIGHT HAND BREAKER ■295-1.0 GRA- o n i i ■295 1.0 GRA- DOOR LOCK •294-1.0 TAN- ■294-1.0 TAN- 12 9 4 } 1 MOTOR -------294-1.0 TAN ----ll 12004140 60-2.0 ORN/BLK —...
  • Page 79 £3 £5] 12015344 12015345 in II o 8911670 12010366 GROMMET GROMMET ru N CIRCUIT X M 1 c ir c u it RIGHT REAR RIGHT FRONT BREAKER 2 I BREAKER 295 1.0 GRA- ■295-1.0 GRA * = 7 - « 2 9 5 L DOOR LOCK DOOR LOCK 294-1.0 TAN-...
  • Page 80 (S I IS ffl H IB O H (B j*** B D IS IS B Q D O S E > s 150-.8 BLK- (S (S s i s i i i i i •ATT io n a c c WINDSHIELD C i u N ? SHUN?
  • Page 81 © © ® GD E © © S B ® ® ® 150 .8 BLK* a s © ® ® © © •ATT SHUNT SHUNT b u s Q 3 t M J J M L E M ] r 2 o P AOX MTU A«C STOP HA2 GROUND 25A |...
  • Page 82 SHEET 2973407 METAL GROUND TRANSMISSION BACKUP 150.8 BLK- -eCgHi' LAMP SWITCH (AUTO TRANS) ONLY SPLICE 150 FROM RIGHT HAND TAIL. STOP. DIRECTIONAL ft SIDE MARKER LAMPS 2973431 MANUAL ONLY RIGHT HAND BACKUP .8 LT GRN LAMP - 75 .8 DK BLU 24 .8 LT GRN- -24 .8 LT GRN- ’•ibi...
  • Page 83 BACKUP LAMP (PART OF RH TAIL. STOP AND DIR LAMP ASM) -24 .8 LT GRN PART OF LAMP ASM LAMP ASM GROUND 6288585 24 .8 LT GRN- 24 .8 LT GRN ■ FRAME GROUND TO BULKHEAD CONNECTOR FOR REMAINDER OF CIRCUIT 12015798 SEE BACK-UP LAMPS- UTILITY, SUBURBAN...
  • Page 84 FROM R.H. SIDE FROM R.H. SIDE MARKER LAMP MARKER LAMP FROM R.H. TAIL, STOP & FROM R.H. TAIL. STOP & DIRECTIONAL SIGNAL LAMP DIRECTIONAL SIGNAL LAMP FROM RH FRONT & ► 150-.8 BLK REAR 150 .8 BLK CLEARANCE ► LAMPS 24 .8 LT GRN 24 .8 LT GRN RIGHT HAND...
  • Page 85 R.H. SIDE MARKE LAMP R.H. TAIL, STOP & DIRECTIONAL HEADLAMP LAMP SWITCH TO COURT LAMP 9 .8 BRN- SPLICE 9 12015798 150 .8 BLK - BACKUP SHEET LAMP METAL GRN SPLICE 150 --------- 12015024 9 .8 BRN 9 8 BRN- 12020099 SPLICE 150 12020184...
  • Page 87 RIGHT HAND SIDE MARKER LAMP HEADLAMP SWITCH BACK UP LAMP 9 .8 BRN- TAIL. STOP & DIR LAMP 'yC JD I 15 I 14 I 11 2 T | 12015798 — ■ 9 .8 BRN 9 .8 BRN 1 ________| [ 4 3 9 |4 2 0 || 12015024 ”...
  • Page 88 R.H. TAIL, STOP & DIRECTIONAL HEADLAMP LAMP 6288424 SWITCH TO COURT. LAMP 6288424 L.H. TAIL, STOP & DIRECTIONAL LAMP TAIL LAMPS EXTENDED CAB PICKUP FUSE BLOCK SECTION A - PAGE 80...
  • Page 89 R.H. TAIL, STOP & DIRECTIONAL LAMP LICENSE LAMP 12020099 n r Q i f t . < T ) 12015024 SPLICE 1 50 BACKUP LAMP 150 .8 BLK SHEET METAL GRN SPLICE 9 & 9 .8 BRN ® m 8911029 g) is} HOT AT L.H.
  • Page 90 R.H. SIDE MARKER LAMP R.H. TAIL STOP & DIRECTIONAL LAMP L.H. TAIL, STOP & DIRECTIONAL LAMP L.H. SIDE MARKER LAMP LICENSE LAMP FLEETSIDE (E63) REAR WIDESIDE (R05) FUSE BLOCK SECTION A-PAGE 82...
  • Page 91 RIGHT HAND HEADLAMP SWITCH 1 15 1 14 i . ? . u £ i r ^ 9 8 BRN L _ ^ _ J | 4 3 9 | 4 2 0 1 12015024 8917234 35 | 2 5 | 31 | 1 8 0 «...
  • Page 92 R.H. TAIL, STOP & DIRECTIONAL HEADLAMP LAMP 6288424 SWITCH TO COURT. LAMP •9 .8 BRN- 9 .8 BRN' 2977645 BACKUP LAMP 9 .8 BRN DUAL 2977107 9 .8 BRN LICENSE SPLICE 9 .8 BRN- LAMPS < r SPLICE 12015024 2977107 2977159 12020099 2977107 9 .8 BRN...

  • Page 94: Fuse Block Detail

    1989 P TRUCK SECTION B PAGE DESCRIPTION PAGE DESCRIPTION EMISSION CONTROLS (6 CYL.) FUSE BLOCK DETAILS 25-26 EMISSION CONTROLS (8 CYL.) START/IGNITION (8 CYL.) EMISSION CONTROLS (DIESEL) POWER DISTRIBUTION (DIESEL) POWER DISTRIBUTION (6 CYL.) GLOW PLUGS (DIESEL) POWER DISTRIBUTION (8 CYL.) AUTO TRANSMISSION KICKDOWN SOLENOID (M4Q) 7-10 30-31...
  • Page 95 CAVITY "W "-C IR C U IT 50 IGN "O N " 2 5 A FUSED FEED — HTR & A/C CAVITY " I" CIRCUIT 3 9 CAVITY " A " —CIRCUIT 141 IGN "O N & CRANK" 2 0 A FUSED FEED IG N - "O N &...
  • Page 96 CAVITY " W " - CIRCUIT 50 IGN “ O N " 2 5 A FUSED FEED — HTR & A/C CAVITY " I" CIRCUIT 39 CAVITY " A " -C IR C U IT 141 IGN "O N & CRANK" 20 A FUSED FEED IGN —"ON &...
  • Page 97 START/IGNITION LT9-V8 BODY S T Y L E -4 2 SECTION B - PAGE 4 REAR FRONT...
  • Page 98 □ □ □ □ C 3 C 3 TIMES GROUND C 3 o o [ “ ^ ---- + ■ — REAR FUSE BLOCK RIGHT HAND LEFT HAND BATTERY BATTERY POWER DISTRIBUTION-LL4 DIESEL SECTION B - PAGE 5...
  • Page 99 POWER DISTRIBUTION L25 BODY STYLE- 4 2 FUSE BLOCK FRONT SECTION B - PAGE 6 REAR...
  • Page 100 POWER DISTRIBUTION LE8 V -8 BODY S T Y L E -3 2 FUSE BLOCK SECTION B - PAGE 7 REAR...
  • Page 101 POWER DISTRIBUTION LT9, V -8 BODY STYLE- 4 2 FUSE BLOCK SECTION B - PAGE 8 REAR...
  • Page 102 ■32 BLK (BATT CABLE) POWER DISTRIBUTION L 0 5 - V 8 FRONT REAR FUSE BLOCK SECTION B - PAGE 9...
  • Page 103 CLUTCH SWITCH (MAN TRANS) NEUTRAL START & BACK-UP SWITCH (AUTO TRANS) TO AIR SWITCH & M 4 0 KICKDOWN RELAY SHEET ENG INE M E T A L G R O U N D G R O U N D POWER DISTRIBUTION P42 &...

  • Page 104: Marker Lamps

    RIGHT-HAND RIGHT-HAND HIGH-LOW SIDE MARKER HEADLAMP LAMP 2 9 7 3 3 8 6 (P32) LAMP—P32 12 0 3 4 3 7 2 (P42) (32/E 33 ONLY —P42) TO INSTRUMENT CLUSTER 6 2 9 4 0 1 5 1 1 -1 .0 LT GRN 12 .8 T A N ------- 15 1 -3 .0 BLK FRAME...
  • Page 105 R.H. R.H. SIDE MARKER SIDE MARKER SHEET LAMP LAMP METAL GROUND 6 2 9 4 0 1 5 1151-.8 BLK 12004628 R.H. PARK & R.H. TAIL. DIRECTIONAL HEADLAMP STOP, & LAMP DIRECTIONAL SWITCH LAMP •15-.5 DK BLU SPLICE 9 9 .8 BRN- R.H.

  • Page 106: Hazard Lamps

    DIRECTIONAL SIDE MARKER LAMP SIGNAL SW LAMP—P32 (E32/E33 ONLY —P42) r f l - 17 1.0 W H T----- 19 -1.0 DK GRN- -18 1.0 YEL------- ■ i f . 2 7 -1 .0 BRN — PROVISIONS FOR 15 .5 DK BLU ? J - l RH TAIL.
  • Page 107 SIDE MARKER DIRECTIONAL LAMP SIGNAL SW LAMP—P32 (E32/E33 ONLY —P42) 19-1.0 DK GRN- ■18-1.0 YEL- 16-.8 PPL- PROVISIONS FOR -15 .5 DK BLU RH TAIL. STOP & DIRECTIONAL LAMP (P32) 6294015 R.H. TAIL, STOP & DIRECTIONAL LAMP (P42) R.H. PARK & DIRECTIONAL LAMP .8 PPL...

  • Page 108: Horn

    HORN RELAY 1 2 0 0 4 2 6 7 HORN I , s ■ 1 6 1 1 6 2 9 J (_28 I 2 4 0 1 I f . I 1 5 2 tt •2 8 .5 BLK 1 2 0 0 4 1 4 7 1 2 0 0 4 1 4 8 29 |...
  • Page 109 8 .5 GRA WIPER, WASHER SWITCH ■150 8 BLK SHEET LAMP METAL GROUND 8 9 0 5 3 8 1 WINDSHIELD OFF LO WIPER 150 .8 B L K ----------------------- — I jb o ] E > WASHER - 9 4 .8 PNK SWITCH 1 91 I I 92 I ■...
  • Page 110 ru ___ n f-i—r < 2 - START (IGNITION L 2 5 - 6 CYL. BATTERY BODY STYLE- 4 2 SECTION B - PAGE 17 REAR FRONT...
  • Page 111 —> w N — i* I T ' - * ----- ----------►!----------- - — « ----------- f c - V — - • 'J J B ■32 BLK (BATT CABLE) - j-i--------n — P iil □ □ □ □ W o T Ih s —...
  • Page 112 RED (P32) THERMO HW — - ° \ v v ' — RED-THERMO HW TIMES 32 BLK C 3 D 3 — n --------n — _ - n ____ □ __ GROUND C D O D J FUSE BLOCK RIGHT HAND LEFT HAND BATTERY BATTERY...
  • Page 113 START/IGNITION - L05-V8 SECTION B - PAGE 20...
  • Page 114 TO PARK/ CLUTCH NEUTRAL SWITCH RELAY (MAN TRANS) (AUTO ONLY) 2 -5 .0 RED- 8 9 1 1 9 2 1 NEUTRAL START & BACK-UP TO CLUTCH START SWITCH (MAN TRANS) NEUTRAL SAFETY SWITCH (AUTO TRANS) START/IGNITION L 05 -V 8 FRONT P42 &...

  • Page 115: Throttle Body Injection

    OXYGEN SENSOR 4 3 9 -1 .0 PNK/BLK 4 1 2 -.8 PPL- 1 2 0 1 8 7 9 1 GROMMET 1 2 0 2 0 1 0 7 TO COOLANT THROTTLE TEMP SENSOR POSITION SENSOR SPLICE 4 1 2 .8 PPL 4 1 2 -.8 PPL 45 2 1 2 0 2 0 7 5 3...
  • Page 116 GROMMET TO ECM 1 2 0 2 0 1 0 7 FUEL PUMP RELAY STEPPER MOTOR § 4 44 IDLE AIR CONTROL 1 2 0 1 5 7 9 GROUND ALTERNATOR BRACKET SYSTEM GROUND NO. 2 (LH REAR CYLINDER HEAD) FUEL PUMP OIL PRESSURE SENSOR &...

  • Page 117: Emission Controls

    DIVERT SOLENOID (NA5) CONTROLLER (NA5) IDLE STOP SOLENOID EMISSION CONTROLS —L25 SECTION B - PAGE 24...
  • Page 118 ENGINE 150 .8 BLK © GROUND RIGHT HAND 9 3 6 .8 YEL DIVERT 3 9 .8 PNK/BLK SOLENOID 12015792 (NA5) 39 .8 PNK/BLK- ENGINE n— r n - SPLICE 93 6 l f . > 9 3 6 .8 YEL .
  • Page 119 BODY GROUND RIGHT HAND DIVERT SOLENOID (NA5) DIVERTER SYSTEM RELAY (NA5) DIVERTER MODULE (NA5) LEFT HAND DIVERT SOLENOID EMISSION CONTROLS-LE8 SECTION B - PAGE 26...
  • Page 120 FAST IDLE SOLENOID 1 2 0 0 4 2 6 7 I n FUEL PRESSURE WATER IN FUEL SENSOR FUEL HEATER FUEL SHUT OFF VALVE EMISSION CONTROLS!DIESEL 1 -L L 4 SECTION B - PAGE 27 TO SPLICE 39...
  • Page 121 1 2 0 2 0 2 7 4 FUEL SHUT OFF VALVE GLOW PLUGS —LL4 DIESEL SECTION B - PAGE 28...
  • Page 122 TRANSMISSION SPLICE 4 2 2 4 2 2 .8 TAN/BLK- 4 2 2 .8 TAN/BLK KICKDOWN TO ALDL SOLENOID TO AIR SWITCH 55 .8 ORN 2 9 8 4 0 9 2 KICKDOWN RELAY 1 2 0 2 0 7 5 3 39 .8 PNK/BLK —...
  • Page 123 THROTTLE POSITION SENSOR COOLANT TEMP SENSOR E.S.C. SENSOR E.S.C. HYBRID FUNCTION O X Y G E N SENSOR 1 2 0 1 5 7 9 1 ELECTRONIC CONTROL M O DULE-INPUTS L05-V 8 SECTION B - PAGE 30...
  • Page 124 ■450-1.0 BLK/WHT - ■ 439-1.0 PNK/BLK -4 3 9 -1 .0 PNK/BLK - SPLICE 4 4 0 -4 4 0 -1 .0 ORN 4 4 0 -1 .0 ORN -4 4 0 -1 .0 ORN- ■440 1.0 ORN -4 4 0 -1 .0 ORN- GROMMET ■485- 8 BLK 1 2 0 2 0 1 0 7...
  • Page 125 ELECTRONIC SPARK TIMING E.V.R.V. SWITCH FUEL PUMP RELAY FUEL PUMP OIL PRESSURE SENSOR & SWITCH 1 2 0 4 8 3 9 0 ELECTRONIC CONTROL M ODULE-O UTPUTS L05-V 8 TO OIL SECTION B - PAGE 32 PRESS GAUGE...
  • Page 126 TO ECM ELECTRONIC CONTROL MODULE L05-V8 SECTION B - PAGE 33 4 3 9 - 8 PNK/BLK...
  • Page 127 CIRCUIT WIRE CIRCUIT WIRE CAVITY COLOR DESCRIPTION COLOR CAVITY DESCRIPTION SIZE SIZE 4 6 5 DK GRN/WHT FUEL PUMP RELAY DRIVE NOT USED NOT USED 4 3 6 AIR SW SOLENOID NOT USED 4 4 4 LT GRN/BLK STEPPER COIL B LOW 4 3 5 EVRV 4 4 3...
  • Page 128 INSTRUMENT PANEL CLUSTER CONNECTOR SEE PAGE BRAKE PRESSURE WARNING 33 .5 TAN/W HT- LE8, L25 LE8, L25 (BODY STYLE (BODY STYLE 42 ONLY) 42 ONLY) LL4 (ALL BODY LL4 (ALL BODY STYLES) STYLES) BRAKE WARNING SYSTEM SECTION B - PAGE 35...
  • Page 129 —, FOR CONTINUATION OF WIRING | j— SEE BRAKE WARNING SYSTEM 8 9 1 1 1 4 9 is o 6 2 9 4 4 6 8 7=v_ 15 0 .8 BLK VACUUM SWITCH 3 3 .8 TAN/WHT PARK 150 .8 BLK BRAKE <LL 4 1 2 0 1 5 7 9 2...
  • Page 130 ILLUM ILLUM ILLUM TRANSMISSION WIPER/WASHER HIGH BEAM DIAL LAMP SWITCH LAMP SOCKET (LE8, LL4 ONLY) 89 0 5 3 8 1 BRAKE WINDSHIELD WIPER 150 .8 BLK- 1 5 0 11 5 0 1 L T J J WASHER l 9 4 l --------- 1<...
  • Page 131 ■419-.8 BRN/WHT------------------------------------------------------ ^ TO ECM BRAKE PRESSURE WARNING SWITCH DIMMER 33 .8 TAN/WHT SWITCH 8 9 0 0 8 5 5 PRESSURE SWITCH 9 3 1 . 8 DK BLU 139 .8 PNK/BLK 9 3 1 -1 .0 DK BLU' 8 9 0 0 4 2 0 2 9 7 7 2 5 3 4 1 9 -1 .0 BRN/W HT'...
  • Page 132 (ST I I RING COL S WI TCHES I ILLUM ILLUM ILLUM DIRECTIONAL HIGH BEAM SIGNAL SW •16 .8 PPL- © ■27-1.0 BRN- TO l/P BRAKE CONN H O T )*' CHOKE CHECK CHECK WARNING ENGINE ENGINE LAMP LAMP LAMP 12004147 (LE8) (LE8,...
  • Page 133 ILLU M ILLUM ILLUM COOLANT COOLANT METAL FUEL PUMP H IG H B E A M FUEL PUMP TEMP TEMP TEMP PRESS OIL PRESS SWITCH SENDER SWITCH SENDER SENSOR & SW. ( f ) (D Ct) 6 2 8 8 7 0 4 1 2 0 4 5 8 9 6 INSTRUMENT PANEL GAGES FRONT...
  • Page 134 TRANSMISSION BACK-UP LAMP SWITCH IS IS C D B E (D 0 " * * (AUTO TRANS ONLY) (D ID □ B E Q E < M T * MANUAL ID (5 ID f t E ID E TRANSMISSION •ATT ONLY SHUNT [ b A...
  • Page 135 R.H. PROVISIONS FOR SIDE MARKER R.H. TAIL. STOP LAMP & DIRECTIONAL LAMP (P32) R.H. TAIL, STOP & DIRECTIONAL LAMP (P42) HEADLAMP SWITCH 2 9 8 4 8 5 5 SPLICE 9 R.H. 9 .8 BRN- LICENSE LAMP ■9 .8 BRN- 9- 8 BRN 9 -1 .0 BRN- L.H.
  • Page 136 R.H. SIDE MARKER LAMP PARK H E A D f PARK O 1 2 0 0 4 6 2 8 R.H. TAIL. STOP & DIRECTIONAL HEADLAMP LAMP (P42) SWITCH PROVISIONS FOR LICENSE LAMP (P32) R.H. LICENSE LAMP (P42) SPLICE 9 ■9 .8 BRN- ------- 9- 8 BRN .8 BLK...

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