DTC 8 - Shorted Dump Solenoid Or EBCM Fault: Notes
WARNING: This page is about a different car, the 1995 GMC Sonoma. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Perform SYSTEM DIAGNOSTIC CHECK
before performing trouble shooting procedure.
- Turn ignition off. Disconnect EBCM 4-pin connector. Turn ignition on. Measure resistance between White wire and Black wire terminals of EBCM 4-pin connector. If resistance is not 1-3 ohms, go to step 5). If voltage is 1-3 ohms, go to next step.
- Measure resistance in White wire between EBCM 4-pin connector and APV valve body. If resistance is present, go to step 4). If resistance is infinite (open circuit), go to next step.
- Turn ignition off. Replace EBCM. See removal procedures for ELECTRONIC BRAKE CONTROL MODULE (EBCM) . After EBCM replacement, perform SYSTEM DIAGNOSTIC CHECK .
- Replace Anti-Lock Pressure Valve (APV). See removal procedures for ANTI-LOCK PRESSURE VALVE . After replacement of APV, clear DTCs. Perform SYSTEM DIAGNOSTIC CHECK .
- Check for poor connection at EBCM 4-pin connector and harness connector. If connections are okay, go to step 4). If connections are not okay, go to next step.
- Repair EBCM 4-pin connector or harness connector as necessary. Measure resistance between White wire and Black wire terminals of EBCM 4-pin connector. If resistance is not 1-3 ohms, go to step 4). If resistance is 1-3 ohms, clear DTCs. See CLEARING CODES . Perform SYSTEM DIAGNOSTIC CHECK .