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GMC Truck
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1998
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Savana 3/4 Ton Van V8-305 5.0L VIN M SFI
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Relays and Modules - Computers and Control Systems
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Engine Control Module
Engine Control Module
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Service Precautions
Aftermarket (Add-on) Electrical and Vacuum Equipment
Circuit Testing Tools
Electrical Precautions
Electrostatic Discharge Damage
Description and Operation
Control Module Learning Ability & Reprogramming (Flashing)
With Vehicle Control Module (VCM)
Testing and Inspection
Locations
Service and Repair
Crankshaft Position System Variation Learn Procedure
Password Learn Procedure
Using A T50/T60/T20+
Using A Tech 2 Scan Tool
Without Tech 2 Scan Tool or Techline Terminal
VCM Replacement/Programming
Diagrams
Diagram Information and Instructions
Abbreviation
Cell References
Electrostatic Discharge (ESD Sensitive Devices)
On Board Diagnostics II (OBDII) Symbol
Schematic Symbols
Schematic Symbols
Solid State Symbols
Supplemental Inflatable Restraint (SIR) System
Wire Color Code Identification
Wire Size Conversion Table
Diagnostic Aids
General Troubleshooting Procedures
Electrical Test Equipment
Ohmmeter
Test Lamp/Voltmeter
Connector Test Adapters
Self-Powered Test Lamp
Fused Jumper Wire
Short Finder
Fuse Tester
Four-Step Troubleshooting Procedure
Troubleshooting Tests
Testing For Voltage
Testing For Continuity
Testing For Voltage Drop
Testing For Short to Ground
Special Tools
Wire Repair Procedures
Circuit Protection Devices
Circuit Breakers
Fuses
General Information
Typical Electrical Repair Procedures
General Information
Repairing Connectors
General Information
Push-to-Seat
Pull-to-Seat
Wiring Repair-SIR System
Repairing Short Circuits Caused By Damaged Wire
Splicing Copper Wire Using Crimp And Seal Splice Sleeves
Splicing Copper Wire Using Splice Clips
Splicing Twisted/Shielded Cable
Connector Views
ECM/PCM/VCM Pinout Voltage
Vehicle Control Module (VCM)
C1 Blue-32 Pin
C2 Red-32 Pin
C3 Clear-32 Pin
C4 Black-24 Pin
Electrical Diagrams
Technical Service Bulletins