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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 339 (STARTING SYSTEM)DIAGNOSTIC INFORMATIONSTARTER SOLENOID DOES NOT CLICK
1999 GMC Forward Control 5.7 R, Automatic
Starter Solenoid Does Not Click
1999 GMC Forward Control 5.7 R, AutomaticSECTION Starter Solenoid Does Not Click
WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
- Did you perform the DIAGNOSTIC SYSTEM CHECK - ENGINE ELECTRICAL? If so, go to next step. If not, go to DIAGNOSTIC SYSTEM CHECK - ENGINE ELECTRICAL .
- Turn the ignition switch to the START position. Does the engine crank? If so, go to INTERMITTENTS . If not, go to next step.
- Turn the ignition switch to the START position. Does the Theft Deterrent relay click? If so, go to step 7 . If not, go to next step.
- Disconnect the Theft Deterrent relay. Connect a test light from the supply voltage circuit of the theft deterrent relay coil circuit to ground. With the transmission in park, or clutch pedal depressed, turn the ignition switch to the start position. Does the test light illuminate? If so, go to next step. If not, go to step 6 .
- Connect a test light from the supply voltage circuit of the Theft Deterrent relay coil circuit to the control circuit of the Theft Deterrent relay coil circuit. With the transmission in park, or clutch pedal depressed, turn the ignition switch to the start position. Does the test light illuminate? If so, go to step 13 . If not, go to step 10 .
- Turn OFF the ignition. Disconnect the Park Neutral Position (PNP) switch or Clutch Pedal Position (CPP) switch. Turn ON the ignition, with the Engine OFF. Connect a 10 amp fused jumper between the Theft Deterrent relay coil control circuits of the PNP switch or Clutch Pedal Position switch. With the transmission in park, or clutch pedal depressed, turn the ignition switch to the start position. Does the test light illuminate? If so, go to step 14 . If not, go to step 11 .
- Turn OFF the ignition. Disconnect the Theft Deterrent relay. Connect a test light between the battery positive voltage circuit of the Theft Deterrent relay switch circuit and a good ground. Does the test light illuminate? If so, go to next step. If not, go to step 18 .
- Connect a 30 amp fused jumper between the battery positive voltage circuit of the Theft Deterrent relay switch circuit and the supply voltage circuit of the starter solenoid. Does the engine crank? If so, go to step 13 . If not, go to next step.
- Does the fuse in the jumper open? If so, go to step 19 . If not, go to step 12 .
- Test the control circuit of the Theft Deterrent relay for an open or high resistance. Did you find and correct the condition? If so, go to step 25 . If not, go to step 15 .
- Test the supply voltage circuit of the Theft Deterrent relay coil circuit for an open or high resistance. Did you find and correct the condition? If so, go to step 25 . If not, go to step 16 .
- Test the supply voltage circuit of the starter solenoid for an open or high resistance. Did you find and correct the condition? If so, go to step 25 . If not, go to step 17 .
- Inspect for poor connections at the Theft Deterrent relay. Did you find and correct the condition? If so, go to step 25 . If not, go to step 20 .
- If equipped with an Automatic Transmission Inspect for poor connections at the PNP switch harness connector. If equipped with a Manual Transmission inspect for poor connections at the Clutch Pedal Position switch harness connector. Did you find and correct the condition? If so, go to step 25 . If not, go to step 21 .
- Inspect for poor connections at the BCM harness connector. Did you find and correct the condition? If so, go to step 25 . If not, go to step 22 .
- Inspect for poor connections at the ignition switch harness connector. Did you find and correct the condition? If so, go to step 25 . If not, go to step 23 .
- Inspect for poor connections at the starter solenoid. Did you find and correct the condition? If so, go to step 25 . If not, go to step 24 .
- Repair the open or high resistance in the battery positive voltage circuit of the Theft Deterrent relay switch circuit. After repair is complete, go to step 25 .
- Repair the short to ground in the supply voltage circuit of the starter solenoid. After repair is complete, go to step 25 .
- Replace the Theft Deterrent relay. See Figure for relay location. After replacement is complete, go to step 25 .
- Replace the Park/Neutral Position Switch. See
- For 2003, see PARK/NEUTRAL POSITION SWITCH in AUTOMATIC TRANSMISSION article in TRANSAXLE/TRANSMISSION.
- For 2004, see PARK/NEUTRAL POSITION SWITCH in AUTOMATIC TRANSMISSION article in TRANSAXLE/TRANSMISSION.
- Replace the BCM. See BODY CONTROL MODULE (BCM) in BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT. After replacement is complete, go to step 25 .
- Replace the Ignition Switch. See IGNITION SWITCH in GAUGES & INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT. After replacement is complete, go to step 25 .
- Replace the starter. See STARTER MOTOR under REPLACEMENT PROCEDURES. After replacement is complete, go to next step.
- Operate the system for which the symptom occurred. Did you correct the condition? If so, then system is okay. If not, go to step 2 .
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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.