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Home >> Oldsmobile >> 2000 >> Intrigue GL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1689: Traction Control Delivered Torque Output Circuit >> Diagnostic Procedures

Diagnostic Procedures

  1. Perform On-Board Diagnostic (OBD) system check. See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK . After performing OBD system check, go to next step.
  2. Turn ignition on, with engine off. Using scan tool, select DELIVERED TORQUE DRIVER display. Review FAILURE RECORDS DATA. Operate vehicle within conditions for setting this DTC. If scan tool displays OK continuously, see DIAGNOSTIC AIDS . If scan tool does not display OK continuously, go to next step.
  3. Turn ignition off. Disconnect PCM harness connector. Turn ignition on. Using DVOM, check voltage between ground and taction control torque delivered circuit. If voltage reading is 10 volts or greater, go to step  5. If voltage reading is not 10 volts or greater, go to next step.
  4. Turn ignition to LOCK position. Disconnect EBTCM harness connector. Check traction control torque delivered circuit for open, short to ground or short to power. Repair as necessary. After repairs, go to step  8. If circuit is okay, go to step  6.
  5. Check for poor connection or terminal tension at PCM connector. Repair as necessary. After repairs, go to step  8. If connection or terminal tension is okay, go to step  7.
  6. Check for poor connection or terminal tension at EBTCM connector. Repair as necessary. After repairs, go to step  8. If connection or terminal tension is okay, diagnose ABS brake system.
  7. Replace PCM. Program replacement PCM using required equipment. After repair is completed, go to next step.
  8. Using scan tool, select CLEAR INFO or CLEAR DTCs function to clear DTCs. Turn ignition on, with engine off. Using scan tool, review FREEZE FRAME data and note parameters. Start engine and operate vehicle within conditions required for setting this DTC, and as close to conditions recorded in FREEZE FRAME as possible. Monitor SPECIFIC DTC info for this DTC until DTC test runs. If scan tool indicates FAILED THIS IGN, repeat step  2. If scan tool does not indicate FAILED THIS IGN, go to next step.
  9. Using scan tool, select CAPTURED INFO function. If any undiagnosed DTCs are set, go to affected DTC test.
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