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Home >> Chevrolet >> 2000 >> Cavalier Base, 2D Coupe, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Symptom Tests >> Cruise Control Inoperative

Cruise Control Inoperative

NOTE: To avoid misdiagnosis, ensure preliminary inspection and all checks have been performed. See TROUBLE SHOOTING  . Ensure proper operation of brakelight system.
  1. Perform cruise control diagnostic system check. See DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM. After completing system check, go to next step.
  2. Turn ignition switch to OFF position. Disconnect cruise control module harness connector. Turn ignition switch to ON position. Using a test light connected to ground, probe cruise control module harness connector (harness side) terminal "F" (Pink wire). If test light illuminates, go to next step. If test light does not illuminate, go to step  36 .
  3. Using a test light connected to cruise control module ground circuit at cruise control module harness connector terminal "E" (Black/White wire), probe cruise control module harness connector terminal "F" (Pink wire). If test light illuminates, go to next step. If test light does not illuminate, go to step  37 .
  4. Turn ignition switch to ON position. Ensure cruise control switch is in OFF position. Using a test light connected to chassis ground, individually probe cruise control harness connector terminals "A" (Gray wire), "B" (Dark Blue wire) and "C" (Gray/Black wire). If test light does not illuminate, go to next step. If test light illuminates at any terminal, go to step  16 .
  5. Turn ignition and cruise control switches to ON position. Using a test light connected to chassis ground, probe cruise control harness connector terminal "A" (Gray wire). If test light illuminates, go to next step. If test light does not illuminate, go to step  17 .
  6. Using a test light connected to chassis ground, probe cruise control module harness connector terminal "B" (Dark Blue wire). Press and hold SET switch. If test light illuminates, go to next step. If test light does not illuminate, go to step  19 .
  7. Using a test light connected to chassis ground, probe cruise control module harness connector terminal "C" (Gray/Black wire). Press and hold RESUME/ACCEL switch. If test light illuminates, go to next step. If test light does not illuminate, go to step  20 .
  8. Using a test light connected to chassis ground, probe cruise control module harness connector terminal "D" (Purple wire on automatic transaxle; Brown/White on manual transaxle). If test light illuminates, go to next step. If test light does not illuminate, go to step  21 .
  9. While monitoring test light at terminal "D" (Purple wire on automatic transaxle; Brown/White on manual transaxle), depress brake pedal. On M/T equipped vehicles, also depress clutch pedal. If test light does not illuminate, go to next step. If test light illuminates, go to step  22 .
  10. Using a test light, probe cruise control module harness connector terminal "G" (White wire). If test light does not illuminate, go to next step. If test light illuminates, go to step  23 .
  11. While monitoring test light at White wire (terminal "G"), depress brake pedal. If test light illuminates, go to next step. If test light does not illuminate, go to step  24 .
  12. Using a test light connected to battery voltage, probe cruise control module harness connector terminal "H" (Dark Green wire). If test light does not illuminate, go to next step. If test light illuminates, go to step 25 .
  13. With test light connected to Dark Green wire (terminal "H"), connect scan tool to DLC. Command CRUISE INHIBIT/ENABLE OFF. If test light illuminates, go to next step. If test light does not illuminate, go to step  26 .
  14. Using a DVOM, check voltage at cruise control module harness connector terminal "J" (Light Blue/Black wire). If battery voltage exists, go to next step. If battery voltage does not exist, go to step  27 .
  15. Raise and support vehicle. Block one drive wheel and place transaxle in DRIVE position. Using DVOM set to AC scale, measure voltage at cruise control module harness connector terminal "K" (Dark Green/White wire) while rotating one drive wheel. If voltage fluctuates, go to step  35 . If voltage does not fluctuate, go to step  28 .
  16. Repair short to voltage in wire which caused test light to come on in step 4)  . See WIRING DIAGRAMS  . After repair, go to step  43 . If no problem was found or condition still exists, go to step  34 .
  17. Check Gray wire between cruise control functional switches and cruise control harness connector terminal "A" for open or high resistance. Repair circuit as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to next step.
  18. Check Pink wire between cruise control functional switches harness connector terminal "A" and cruise control module harness connector terminal "F" for open or high resistance. Repair Pink wire as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to step  34 .
  19. Check Dark Blue wire between cruise control functional switches harness connector terminal "B" and cruise control module harness connector terminal "B" for open or high resistance. Repair Dark Blue wire as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to step  34 .
  20. Check Gray/Black wire between cruise control functional switches harness connector terminal "C" and cruise control module harness connector terminal "C" for open or high resistance. Repair Gray/Black wire as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to step  34 .
  21. On automatic transaxle, check Purple wire between cruise control release switch harness connector and cruise control module harness connector terminal "D" for open or high resistance. On manual transaxle, check Brown/White wire between cruise control clutch switch harness connector and cruise control module harness connector terminal "D" for open or high resistance. See WIRING DIAGRAMS  . Repair wire(s) as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to step  29 .
  22. On automatic transaxle, check Purple wire between cruise control release switch harness connector and cruise control module harness connector terminal "D" for short to voltage. On manual transaxle, check Brown/White wire between cruise control clutch switch harness connector and cruise control module harness connector terminal "D" for short to voltage. See WIRING DIAGRAMS  . Repair wire(s) as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to step  29 .
  23. Check White wire between brakelight switch harness connector and cruise control module harness connector terminal "G" for short to battery voltage. See WIRING DIAGRAMS  . Repair White wire as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to step  30 .
  24. Check White wire between brakelight switch harness connector and cruise control module harness connector terminal "G" for open or high resistance. Repair White wire as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to step  30 .
  25. Check Dark Green wire between cruise control module harness connector terminal "H" and Black PCM Black harness connector C2 terminal No. 45 for short to ground. See WIRING DIAGRAMS  . Repair Dark Green wire as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to step  33 .
  26. Check Dark Green wire between cruise control module harness connector terminal "H" and Black PCM harness connector C2 terminal No. 45 for open, high resistance or short to voltage. Repair Dark Green wire as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to step  33 .
  27. Check Light Blue/Black wire between cruise control module harness connector terminal "J" and Black PCM harness connector C2 terminal No. 48 for open, high resistance, or short to voltage. Repair Light Blue/Black wire as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to step  33 .
  28. Check Dark Green/White wire between cruise control module harness connector terminal "K" and Black PCM harness connector C2 terminal No. 16 for open or high resistance. See WIRING DIAGRAMS  . Repair Dark Green/White as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to step  33 .
  29. Check cruise control release switch and clutch switch (if equipped) for proper adjustment. See CRUISE CONTROL RELEASE SWITCH & BRAKELIGHT SWITCH  and/or CRUISE CONTROL CLUTCH SWITCH (M/T)  under ADJUSTMENTS. Adjust switch(es) as necessary. After repair, go to step  43 . If adjustment is okay and condition still exists, go to step  31 .
  30. Check brakelight switch for proper adjustment. Adjust brakelight switch if necessary. See CRUISE CONTROL RELEASE SWITCH & BRAKELIGHT SWITCH  under ADJUSTMENTS. After repair, go to step  43 . If adjustment is okay and condition still exists, go to step  32 .
  31. Check for poor connections or damage at cruise control release switch and clutch switch (if equipped) harness connectors. Repair connections as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to step  38 .
  32. Check for poor harness connections at brakelight switch. Repair connections as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to step  39 .
  33. Check for poor harness connections at PCM. Repair connections as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to step  40 .
  34. Check for poor connections at cruise control functional switches harness connectors. Repair as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to step  41 .
  35. Check for poor harness connections or connector damage at cruise control module. Repair connections as necessary. After repair, go to step  43 . If no problem was found or condition still exists, go to step  42 .
  36. Repair Pink wire between cruise control module harness connector terminal "F" and CRUISE fuse (10-amp) in fuse block. See WIRING DIAGRAMS  . After repair, go to step  43 .
  37. Repair open in Black/White wire between chassis ground and cruise control module harness connector terminal "E". See WIRING DIAGRAMS  . After repair, go to step  43 .
  38. Replace cruise control release switch and/or clutch switch. See CRUISE CONTROL RELEASE SWITCH & BRAKELIGHT SWITCH  and/or CRUISE CONTROL CLUTCH SWITCH (M/T)  under REMOVAL & REPAIR. After repair, go to step  43 .
  39. Replace and adjust brakelight switch. See CRUISE CONTROL RELEASE SWITCH & BRAKELIGHT SWITCH  under REMOVAL & INSTALLATION. Also see CRUISE CONTROL RELEASE SWITCH & BRAKELIGHT SWITCH  under ADJUSTMENTS. After repair, go to step  43 .
  40. Replace and program PCM. See POWERTRAIN CONTROL MODULE (PCM)  under REMOVAL & INSTALLATION. To program PCM, see COMPUTER RELEARN PROCEDURES - GENERAL MOTORS CORP. article in GENERAL INFORMATION. After repair, go to step  43 .
  41. Replace cruise control functional switches. See CRUISE CONTROL FUNCTIONAL SWITCHES  under REMOVAL & INSTALLATION. After repair, go to step  43 .
  42. Replace cruise control module. See CRUISE CONTROL MODULE  under REMOVAL & INSTALLATION. After repair, go to next step.
  43. Operate vehicle at normal highway speeds and exercise cruise control system. If cruise control system operates correctly, repair is complete. If cruise control system is not operating properly, return to step  2 .
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