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HOMESERVICE MANUALSCHEVROLET1998TRACKER 2D UTILITY, RWD, AUTOMATICREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLANTI-LOCK BRAKE SYSTEMDIAGNOSIS & TESTINGDIAGNOSTIC SYSTEM CHECKDIAGNOSIS
1998 Chevrolet Tracker 2D Utility, RWD, Automatic

Diagnostic System Check: Diagnosis

1998 Chevrolet Tracker 2D Utility, RWD, AutomaticSECTION Diagnosis
  1. Ensure EBCM connectors C1 and C2 are properly connected. Install scan tool. Turn ignition on. Select ABS on menu. Select Data List on scan tool. If scan tool is receiving data from EBCM, go to step 15)  . If scan tool does not receive data from EBCM, go to next step.
  2. Read scan tool display. If scan tool displays NO COMMUNICATION WITH VEHICLE. CHECK DLC CONNECTOR, go to appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE. If scan tool display is blank, go to next step.
  3. Verify correct scan tool connection to Data Link Connector (DLC). If connection is okay, go to next step. If connection is not okay, go to step 26)  .
  4. Turn ignition off. Remove TAIL-DOME fuse (15-amp). If fuse is blown, go to step 18)  . If fuse is okay, reinstall fuse and go to next step.
  5. Remove REAR DEFG fuse (15-amp). If fuse is blown, go to step 21)  . If fuse is okay, reinstall fuse and go to next step.
  6. Disconnect EBCM 2-pin connector. Using Digital Volt-Ohmmeter (DVOM), measure resistance between ground and EBCM connector Black wire terminal. If resistance is 0-2 ohms, go to next step. If resistance is not 0-2 ohms, go to step 27)  .
  7. Disconnect EBCM 32-pin connector. Measure voltage between ground and terminal D8 (White wire). If voltage is more than 10 volts go to next step. If voltage is less than 10 volts, go to step 28)  .
  8. Turn ignition on. Measure voltage between ground and EBCM 32-pin connector terminal D9 (Yellow/Green wire). If voltage is more than 10 volts go to next step. If voltage is less than 10 volts, go to step 29)  .
  9. Turn ignition off. Disconnect both battery cables. Measure resistance between negative battery terminal and EBCM 2-pin connector Black wire terminal. If resistance 0-2 ohms, go to next step. If resistance is not 0-2 ohms, go to step 30)  .
  10. Measure resistance between positive battery cable terminal and 32-pin connector terminal D8 (White wire). If resistance 0-2 ohms, go to next step. If resistance is not 0-2 ohms, go to step 31)  .
  11. Turn ignition on. Measure resistance between positive battery cable terminal and 32-pin connector terminal D9 (Yellow/Green wire). If resistance 0-2 ohms, go to next step. If resistance is not 0-2 ohms, go to step 32)  .
  12. Turn ignition off. Measure resistance of Yellow/Green wire between EBCM 32-pin connector DP and DLC connector. If resistance 0-2 ohms, go to next step. If resistance is not 0-2 ohms, problem is in DLC circuit. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
  13. Measure resistance between ground and EBCM 32-pin connector terminal D9 (Yellow/Green wire). If continuity is present, go to next step. If resistance is less than infinite, problem is in DLC circuit. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
  14. Inspect EBCM connectors, and battery cable connections for poor contact, corrosion or damage. If connections are okay, go to step 33)  . If connections are not okay, go to step. 39).
  15. Connect scan tool and check for stored DTCs. If DTCs are found go to appropriate DTC test. If no DTCs are found, go to next step.
  16. Turn ignition off. Wait 10 seconds. Turn ignition on. Observe Amber ABS indicator. If Amber ABS light is on for 3 seconds and then turns off, go to next step. If Amber ABS light is not on for 3 seconds and then go off, go to TEST A  .
  17. Connect scan tool. Select DTC History. If any history DTCs are displayed, go to step 40)  . If no DTCS are displayed, go to step 41)  .
  18. Install new 15-amp TAIL-DOME fuse. Turn ignition on. Wait for 10 seconds. Turn ignition off. Remove and inspect TAIL-DOME fuse. If fuse is open, go to next step. If fuse is not open, go to step 35)  .
  19. Turn ignition off. Disconnect EBCM connector. Install new 15-amp TAIL-DOME fuse. Turn ignition on. Wait for 10 seconds. Remove and inspect TAIL-DOME fuse. If fuse is not open, go to next step. If fuse is open, go to step 34)  .
  20. Check White wire circuit between TAIL-DOME fuse and EBCM connector. If circuit is damaged, repair as necessary. If circuit is okay, reconnect EBCM connector. Install new 15-amp TAIL-DOME fuse. Turn ignition on. Wait for 10 seconds. Remove and inspect TAIL-DOME fuse. If fuse is not open, go to step 38. If fuse is open, go to step 25)  .
  21. Install new 15-amp REAR DEFG fuse. Turn ignition on. Wait for 10 seconds. Turn ignition off. Remove and inspect REAR DEFG fuse. If fuse is open, go to next step. If fuse is not open, go to step 37)  .
  22. Turn ignition off. Disconnect EBCM connector. Install new 15-amp REAR DEFG fuse. Turn ignition on. Wait for 10 seconds. Turn ignition off. Remove and inspect REAR DEFG fuse. If fuse is not open, go to next step. If fuse is open, go to step 36)  .
  23. Check Yellow/Green wire circuit between REAR DEFG fuse and EBCM connector. If circuit is damaged, repair as necessary. If circuit is okay, reconnect EBCM connector. Install new 15-amp REAR DEFG fuse. Turn ignition on. Wait for 10 seconds. Turn ignition off. Remove and inspect REAR DEFG fuse. If fuse is not open, go to step 38)  . If fuse is open, go to next step.
  24. Replace EBCM. Install new 15-amp REAR DEFG fuse. Go back to step 1)  .
  25. Replace EBCM. Install new 20-amp TAIL-DOME fuse. Go back to step 1)  .
  26. Disconnect and reconnect scan tool to ensure good connection. Go back to step 1)  .
  27. Repair open or high resistance in Black wire. Go back to step 1)  .
  28. Repair open or high resistance in White wire. Go back to step 1)  .
  29. Repair open or high resistance in Yellow/Green wire. Go back to step 1)  .
  30. Repair open or high resistance is negative battery cable, cable terminals or connections. Go back to step 1)  .
  31. Repair high resistance in White wire, or voltage feed to TAIL-DOME fuse. Go back to step 1)  .
  32. Repair high resistance in Yellow/Green wire, or voltage feed to REAR DEFG fuse. Go back to step 1)  .
  33. Repair terminals or connections for poor contact, corrosion or damage. Go back to step 1)  .
  34. Repair short to ground in White wire. Go back to step 18)  .
  35. Replace 15-amp TAIL-DOME fuse. Go back to step 1)  .
  36. Repair short to ground in Yellow/Green wire. Go back to step 1)  .
  37. Replace 20-amp REAR DEFG fuse. Go back to step 1)  .
  38. Malfunction is intermittent or not present at this time. See PRE DIAGNOSIS INSPECTION  .
  39. Replace EBCM. Go back to step 1)  .
  40. Review enhanced diagnostics information in scan tool manual.
  41. If system is okay, test is complete. If system is not okay, see PRE DIAGNOSIS INSPECTION  .
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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.