Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1996 GMC Jimmy 4D Utility, AWDFACTORY OEM SERVICE PROCEDURE
A & C Chart Reference
GENERAL MOTORS A & C CHART REFERENCE
| System Or Component | Diagnostic Information Location | ||||
|---|---|---|---|---|---|
| A-1, Malfunction Indicator Light (MIL) | See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK | ||||
| A-2, DLC & MIL On Steady | See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK | ||||
| A-2, No Scan Tool Data | See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK | ||||
| A-3, No-Start Diagnosis | See A-3, NO-START DIAGNOSIS | ||||
| A-4, Injector Circuit Diagnosis | See appropriate BASIC FUEL SYSTEM CHECKS | ||||
| A-5, Fuel Pump Relay | See RELAYS, SOLENOIDS, MOTORS & MODULES in SYSTEM/COMPONENT TESTS article | ||||
| A-6, Fuel System Diagnosis | See appropriate BASIC FUEL SYSTEM CHECKS | ||||
| A-7, Injector Balance Test | See FUEL SYSTEM in SYSTEM/COMPONENT TESTS article | ||||
| C-1, MAP Sensor | See ENGINE SENSORS & SWITCHES in SYSTEM/COMPONENT TESTS article | ||||
| C-1, Power Steering Pressure Switch | See ENGINE SENSORS & SWITCHES in SYSTEM/COMPONENT TESTS article | ||||
| C-1, Park/Neutral Switch | See ENGINE SENSORS & SWITCHES in SYSTEM/COMPONENT TESTS article | ||||
| C-2, IAC Motor | See IDLE CONTROL SYSTEM under FUEL SYSTEM in SYSTEM/COMPONENT TESTS article | ||||
| C-3, Fuel Evaporation Control | See appropriate EMISSION SYSTEMS & SUB-SYSTEMS in SYSTEM/COMPONENT TESTS article | ||||
| C-4, Ignition Control Circuit | See IGNITION SYSTEM in SYSTEM/COMPONENT TESTS article | ||||
| C-5, ESC Ignition Check | See IGNITION SYSTEM in SYSTEM/COMPONENT TESTS article | ||||
| C-7, EGR System | See appropriate EMISSION SYSTEMS & SUB-SYSTEMS in SYSTEM/COMPONENT TESTS article | ||||
| C-8, Torque Converter Clutch | (1) See MISCELLANEOUS PCM/VCM CONTROLS in SYSTEM/COMPONENT TESTS article | ||||
| C-8, Manual Transmission Shift Lights | (1) See MISCELLANEOUS PCM/VCM CONTROLS in SYSTEM/COMPONENT TESTS article | ||||
| C-10, A/C Clutch Control | See MISCELLANEOUS PCM/VCM CONTROLS in SYSTEM/COMPONENT TESTS article | ||||
| C-12, Electric Cooling Fan Control | (2) See MISCELLANEOUS PCM/VCM CONTROLS in SYSTEM/COMPONENT TESTS article | ||||
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Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.