LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2001 >> Camaro Base, 2D Convertible, Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System With Traction Control System - BOSCH 5.3 >> Diagnostic Tests >> DTC C0235, DTC C0236, DTC C0237 & DTC P1504: TCS Rpm Signal Circuit Malfunction >> Diagnosis

DTC C0235, DTC C0236, DTC C0237 & DTC P1504: TCS Rpm Signal Circuit Malfunction: Diagnosis

  1. Perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING. Go to next step.
  2. Start engine. Vary engine RPM with throttle while observing tachometer on instrument cluster. If tachometer operates properly as engine RPM changes, go to next step. If tachometer does not operate properly as engine RPM changes, go to step  9 .
  3. Turn ignition off. Disconnect Powertrain Control Module (PCM) connector C2. Disconnect EBCM connector. Install Universal Pinout Box (J 39700) using Cable Adapter (J 39700-530) to EBCM harness connector only. Using DVOM, measure resistance between PCM connector C2 terminal No. 8 (White wire) on Camaro and Firebird 3.8L, Grand Prix and Intrigue, or terminal No. 10 on Camaro and Firebird 5.7L, and universal pinout box terminal No. 11 (White wire) on Camaro, Firebird and Grand Prix, or terminal No. 7 (White wire) on Intrigue. If resistance is 0-5 ohms, go to next step. If resistance is not 0-5 ohms, go to step  10 .
  4. Using DVOM, measure resistance between universal pinout box terminals No. 11 (White wire) on Camaro, Firebird and Grand Prix or terminal No. 7 (White wire) on Intrigue and No. 15 (Black wire on Camaro and Firebird, or Black/White wire on Grand Prix and Intrigue). If resistance is infinite, go to next step. If resistance is not infinite, go to step  11 .
  5. Turn ignition on. Using DVOM, measure voltage between universal pinout box terminals No. 11 (White wire) on Camaro, Firebird and Grand Prix, or terminal No. 7 (White wire) on Intrigue, and No. 15 (Black/White wire). If voltage is 0-2 volts, go to next step. If voltage is not 0-2 volts, go to step  12 .
  6. Check PCM connector C2 and EBCM connector for damage, poor terminal contact and corrosion. If connectors are faulty, go to step  13 . If connectors are okay, go to next step.
  7. Reconnect all connectors. Using scan tool, clear DTCs. Remove scan tool. Start engine. If DTC resets, go to next step. If DTC does not reset, perform DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING.
  8. Replace EBCM. See ELECTRONIC BRAKE CONTROL MODULE  under REMOVAL & INSTALLATION. After repairs, go to step  14 .
  9. Diagnose PCM. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. After repairs, go to step  14 .
  10. Repair open in White wire between PCM and EBCM. After repairs, go to step  14 .
  11. Repair short to ground in White wire between PCM and EBCM. After repairs, go to step  14 .
  12. Repair short to voltage in White wire between PCM and EBCM. After repairs, go to step  14 .
  13. Replace all damaged or corroded terminals and connectors, or any terminals and connectors with poor terminal contact. After repairs, go to next step.
  14. Using scan tool, clear DTCs. Operate vehicle. If DTC does not reset, system is okay.
scientia non olet · About LEMON Manuals