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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. 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.
X-8940
©1988 General Motors Corporation August, 1988
AH rights reserved Printed in U.S.A.
Summary of Contents for P 1989
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Page 26: ...2 2 0 RED THERMO HW FUSIBLE LINK 2 8 BLK RED 30 2 O m I C H m 3 2 m 3 0 z 1...
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Page 29: ...15 8 BLK TO A C COMP l P CLUSTER CONN FUSE BLOCK IGNITION L 2 5 V 6 SECTION A PAGE 21...
Page 32: ...l P CLUSTER CONN TO GENERATOR IGNITION L05 L19 V 8 SECTION A PAGE 24 FUSE BLOCK REAR...
Page 34: ...HOT FUEL HANDLING HOT FUEL HANDLING L05 L1 9 V8 SECTION A PAGE 26...
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Page 49: ...TO ECM ELECTRONIC CONTROL MODULE OUTPUTS L05 L19 V8 SECTION A PAGE 41...
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Page 72: ...TO ROOF MARKER LPS RPO 401 9 8 BRN 9 8 BRN RADIO EQUIPMENT RPO UM6 UP8 SECTION A PAGE 64...
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Page 77: ...150 1 0 BLK C0 m g o z im o o 30 m 3D O m n O G C D m 30 30 O o o C O...
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Page 97: ...START IGNITION LT9 V8 BODY S TY LE 42 SECTION B PAGE 4 FRONT REAR...
Page 99: ...POWER DISTRIBUTION L25 BODY STYLE 4 2 SECTION B PAGE 6 FRONT FUSE BLOCK REAR...
Page 100: ...FUSE BLOCK REAR POWER DISTRIBUTION LE8 V 8 BODY S TY LE 32 SECTION B PAGE 7...
Page 101: ...POWER DISTRIBUTION LT9 V 8 BODY STYLE 4 2 SECTION B PAGE 8 FUSE BLOCK REAR...
Page 102: ...32 BLK BATT CABLE FRONT FUSE BLOCK REAR POWER DISTRIBUTION L 0 5 V 8 SECTION B PAGE 9...
Page 113: ...START IGNITION L05 V8 SECTION B PAGE 20...
Page 121: ...CD FUEL SHUT OFF VALVE 12020274 GLOW PLUGS LL4 DIESEL SECTION B PAGE 28...
Page 126: ...TO ECM 439 8 PNK BLK ELECTRONIC CONTROL MODULE L05 V8 SECTION B PAGE 33...
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