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HOMESERVICE MANUALSCHEVROLET1998TRACKER 2D UTILITY, RWD, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESTRACTION CONTROLANTI-LOCK BRAKE SYSTEMDIAGNOSTIC TESTSDTC C1292: OPEN BRAKELIGHT SWITCH CIRCUIT WHEN ABS WAS REQUIREDCIRCUIT DESCRIPTIONDIAGNOSIS
1998 Chevrolet Tracker 2D Utility, RWD, Automatic

Circuit Description: Diagnosis

1998 Chevrolet Tracker 2D Utility, RWD, AutomaticSECTION Diagnosis
  1. Perform DIAGNOSTIC SYSTEM CHECK  . Go to next step.
  2. Turn ignition switch to LOCK position. Turn ignition on and check for stored DTCs. If DTC C1295 is set, go to appropriate DTC diagnostic procedure. If DTC C1295 is not set, go to next step.
  3. Using scan tool, monitor BRAKE SWITCH POSITION. Apply light pressure to brake pedal. If brakelight switch status indicates ON within one inch of brake pedal travel, go to step 25)  . If scan tool display is not as specified, go to next step.
  4. Apply firm pressure to brake pedal and observe rear brakelights. If brakelights illuminate, go to next step. If brakelights do not illuminate, go to step 8)  .
  5. Turn ignition off. Disconnect EBCM connector C1. Turn ignition on. Apply firm pressure to brake pedal. Measure voltage between EBCM harness connector Green/White wire and ground. If voltage is 10 volts or more, go to next step. If voltage is less than 10 volts, go to step 16)  .
  6. Inspect EBCM connector and harness connector for signs of terminal damage, poor connection or corrosion. If any damage is present, go to step 17)  . If no damage is present, go to next step.
  7. Reconnect EBCM connector. Test drive vehicle and perform an ABS stop from 20 MPH. Using scan tool, check for stored DTCs. If DTC C1291 or DTC C1292 is set as a current DTC, go to step 23)  . If DTCs C1291 and DTC C1292 are not set as a current DTC, go to step 25)  .
  8. Measure voltage between the brakelight switch harness connector Green wire terminal and ground. If voltage is 10 volts or more, go to next step. If voltage is less than 10 volts, go to step 11)  .
  9. Apply firm pressure to brake pedal. Measure voltage between the brakelight switch harness connector Green/White wire terminal and ground. If voltage is less than 10 volts, exists, go to next step. If voltage is 10 volts or more, go to step 16)  .
  10. Check adjustment of brakelight switch. If brakelight switch needs adjustment, go to step 19)  . If adjustment is okay, go to step 18)  .
  11. Remove STOP-HORN (15-amp) fuse. If fuse is blown, go to step 13)  . If fuse is okay, go to next step.
  12. Disconnect brakelight switch connector. Measure resistance of Green wire between STOP-HORN fuse terminal and brakelight switch connector. If resistance is less than 2 ohms, go to step 14)  . If resistance is more than 2 ohms, go to step 21)  .
  13. Disconnect EBCM connector. Measure continuity of Green/White wire between EBCM connector and ground. If continuity is not present, go to step 15)  . If continuity is present, go to step 20)  .
  14. Measure voltage between ground and STOP-HORN fuse. If voltage is more than 10 volts, go to step 25)  . If voltage is less than 10 volts, problem is in fuse block circuit. Repair as necessary.
  15. Disconnect brakelight switch connector. Check continuity of Green wire between ground and brakelight switch connector. If continuity is not present, go to step 24)  . If continuity is present, go to step 22)  .
  16. Repair open in Green/White wire.
  17. Repair or replace damaged connectors.
  18. Replace brakelight switch.
  19. Adjust brakelight switch.
  20. Repair short to ground in Green/White wire. Replace STOP-HORN fuse.
  21. Repair open in Green wire.
  22. Repair short to ground in Green wire. Replace STOP-HORN fuse.
  23. Replace EBCM.
  24. Replace STOP-HORN fuse.
  25. Malfunction is intermittent or not present at this time.
RENDER: 1.0x

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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.