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HOMESERVICE MANUALSCHEVROLET2001CAVALIER LS, 2.4 TREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCRUISE CONTROL SYSTEMSSYSTEM TESTSTEST B: CRUISE CONTROL INOPERATIVE/MALFUNCTIONING (USING TESTER J42958)NOTES
2001 Chevrolet Cavalier LS, 2.4 T

Test B: Cruise Control Inoperative/Malfunctioning (Using Tester J42958): Notes

2001 Chevrolet Cavalier LS, 2.4 TSECTION Notes
NOTE: The following test is specially designed for GM Cruise Control Tester (J42958). GM has noted that using this tester on vehicles with high resistance or an open in cruise control module ground circuit causes the LED(s) on the tester to light abnormally. If this situation is experienced, confirm ground circuit integrity before continuing the test.
  1. If cruise control diagnostic system check has been performed, go to next step. If cruise control diagnostic system check has not been performed, go to CRUISE CONTROL DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM.
  2. Turn ignition switch to LOCK position. Connect Cruise Control Tester (J42958) between Cruise Control Module (CCM) and CCM harness connector. CCM is located at right front corner of engine compartment. Turn cruise control off. Turn ignition switch to RUN position. If IGNITION LED on tester illuminates, go to next step. If IGNITION LED on tester does not illuminate, go to step  20 .
  3. If BRAKE/TCC LED on tester is illuminated, go to next step. If BRAKE/TCC LED on tester is not illuminated, go to step  22 .
  4. If BRAKE LIGHTS LED on tester is not illuminated, go to next step. If BRAKE LIGHTS LED on tester is illuminated, go to step  23 .
  5. Press and release brake pedal. Press and release clutch pedal (M/T). If BRAKE/TCC LED on tester turns off when each operation was performed, go to next step. If BRAKE/TCC LED on tester remained on when each operation was performed, go to step  25 .
  6. Turn cruise control switch on. If ON/OFF and INHIBIT/ENABLE LEDs on tester are illuminated, go to next step. If ON/OFF and INHIBIT/ENABLE LEDs on tester are not illuminated, go to step  27 .
  7. If CRUISE LAMP LED on tester is illuminated, go to next step. If CRUISE LAMP LED on tester is not illuminated, go to step  28 .
  8. Press and release SET switch. If SET/COAST LED on tester illuminates when switch is pressed and turns off when switch is released, go to next step. If SET/COAST LED on tester does not illuminate when switch is pressed and does not turn off when switch is released, go to step  30 .
  9. Press and release RESUME/ACCEL (R/A) switch. If RESUME/ACCEL LED on tester illuminates when switch is pressed and turns off when switch is released, go to next step. If RESUME/ACCEL LED on tester does not illuminate when switch is pressed and does not turn off when switch is released, go to step  31 .
  10. Perform the following operations in sequence:
    • Press and release INHIBIT OVERRIDE button on tester.
    • Press and release BRAKE button on tester.
    • Press and release SET/COAST button on tester.

    If CRUISE ENGAGE LED on tester illuminates continuously after SET/COAST button on tester is pressed and released, go to next step. If CRUISE ENGAGE LED on tester does not illuminate continuously after SET/COAST button on tester is pressed and released, go to step  20 .

  11. While observing throttle lever at throttle body, press and hold RESUME/ACCEL button on tester for 5 seconds, then release. If throttle lever moves toward wide open throttle then closes to about one-half throttle when RESUME/ACCEL button on tester is released, go to next step. If throttle lever does not move toward wide open throttle then close to about one-half throttle when RESUME/ACCEL button on tester is released, go to step  35 .
  12. While observing throttle lever at throttle body, press and hold SET/COAST button on tester for 5 seconds, then release. If throttle lever moves toward closed throttle then returns to about one-half throttle when SET/COAST button on tester is released, go to next step. If throttle lever does not move toward closed throttle then return to about one-half throttle when SET/COAST button on tester is released, go to step  35 .
  13. Press and release (tap) RESUME/ACCEL button on tester 3 times. Press and release BRAKE button on tester. If CRUISE ENGAGE LED on tester turns off and throttle lever returns to closed position, go to next step. If CRUISE ENGAGE LED on tester does not turn off and throttle lever does not return to closed position, go to step  35 .
  14. Raise and support vehicle. Block one drive wheel. Place transaxle in DRIVE position (A/T), or first gear (M/T). Turn ignition switch to RUN position. Observe Vehicle Speed Sensor (VSS) LED on tester while rotating drive wheel that is not blocked, by hand. If VSS LED on tester flashes while rotating drive wheel, go to next step. If VSS LED on tester does not flash while rotating drive wheel, go to step  33 .
  15. Turn ignition switch to LOCK position. Check CCM harness connector. See Figure . If a Dark Green wire is attached to CCM harness connector terminal "H", go to next step. If there is no Dark Green wire attached to CCM harness connector terminal "H", go to step  19 .
  16. Connect scan tool to Data Link Connector (DLC). DLC is located on lower left side of instrument panel, near steering column. Turn ignition switch to RUN position. Using scan tool, Select POWERTRAIN SPECIAL FUNCTIONS, then OUTPUT CONTROLS for CRUISE INHIBIT. Observe INHIBIT ENABLE LED on tester while using scan tool to enable cruise control. If INHIBIT ENABLE LED on tester dimmed during enable command, go to next step. If INHIBIT ENABLE LED on tester did not dim during enable command, go to step  32 .
  17. Turn ignition switch to LOCK position. Disconnect cruise control tester and reconnect CCM harness connector to CCM. Road test vehicle at speeds greater than 25 MPH and operate cruise control system. Using scan tool, monitor cruise inhibit status. If scan tool displays ENABLED at speeds above 25 MPH, go to next step. If scan tool does not display ENABLED at speeds above 25 MPH, perform appropriate POWERTRAIN CONTROL MODULE SYSTEMS DIAGNOSTIC SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM in BODY CONTROL MODULES - CAVALIER & SUNFIRE article. For 2002, see POWERTRAIN CONTROL MODULE SYSTEMS DIAGNOSTIC SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM in BODY CONTROL MODULES - CAVALIER & SUNFIRE article.
  18. If cruise control system operated normally, problem is intermittent. See DIAGNOSTIC AIDS  . If cruise control system did not operate normally, go to step  35 .
  19. Reconnect all components. Road test vehicle at speeds greater than 25 MPH and operate cruise control system. If cruise control system operated normally, problem is intermittent. See DIAGNOSTIC AIDS  . If cruise control system did not operate normally, go to step  35 .
  20. Check for open, high resistance or short to ground in Pink wire between CCM harness connector terminal "F" and instrument panel fuse block CRUISE fuse (10-amp). See Figure . If problem does not exist, go to next step. If any problem exists, repair Pink wire as necessary. After repairs, go to step  39 .
  21. Check for open or high resistance in Black/White wire between ground and CCM terminal "E". If open or high resistance does not exist, go to step  35 . If open or high resistance exists, repair Black/White wire as necessary. Ground point is located at left side of engine/transmission. After repairs, go to step  39 .
  22. Check cruise control brake switch and cruise control clutch switch (M/T) for proper adjustment. See CRUISE CONTROL BRAKE SWITCH & BRAKE SWITCH  and CRUISE CONTROL CLUTCH SWITCH (M/T)  under ADJUSTMENTS. If switch(es) is properly adjusted, go to step  24 . If switch(es) is not properly adjusted, adjust switch(es) as necessary. After adjustment(s), go to step  39 .
  23. Check brake switch for proper adjustment. See CRUISE CONTROL BRAKE SWITCH & BRAKE SWITCH  under ADJUSTMENTS. If brake switch is properly adjusted, go to step  26 . If brake switch is not properly adjusted, adjust brake switch if necessary. After adjustment, go to step  39 .
  24. Check for open or short to ground in Purple wire (A/T) or Brown/White wire (M/T) between CCM harness connector terminal "D" and cruise control brake switch harness connector (A/T), or cruise control clutch switch harness connector (M/T). See Figure . If open or short to ground does not exist, go to step  34 . If open or short to ground exists, repair Purple wire and/or Brown/White wire as necessary. After repairs, go to step  39 .
  25. Check for short to voltage in Purple wire (A/T) or Brown/White wire (M/T) between CCM harness connector terminal "D" and cruise control brake switch harness connector (A/T), or cruise control clutch switch harness connector (M/T). See Figure . If short to voltage does not exist, go to step  34 . If short to voltage exists, repair Purple wire or Brown/White wire as necessary. After repairs, go to step  39 .
  26. Check for open or high resistance in White wire between brake switch and CCM harness connector terminal "G". See Figure . If open or high resistance does not exist, go to step  35 . If open or high resistance exists, repair White wire as necessary. After repairs, go to step  39 .
  27. Disconnect cruise control switch 4-pin harness connector located on multifunction switch. See CRUISE CONTROL SWITCH  under REMOVAL & INSTALLATION. Check for open or short to ground in Gray wire between cruise control switch harness connector and CCM harness connector terminal "A". See Figure . If open or short to ground does not exist, go to step  37 . If open or short to ground exists, repair Gray wire as necessary. After repairs, go to step  39 .
  28. Disconnect cruise control tester from CCM, but leave tester connected to CCM harness connector. If CRUISE LAMP LED remains off after disconnection, go to next step. If CRUISE LAMP LED illuminates after disconnection, go to step  36 .
  29. Disconnect Powertrain Control Module (PCM) 80-pin Black harness connector C2. PCM is located on right front frame rail, in engine compartment. Check for open or short to ground in Light Blue/Black wire between CCM harness connector terminal "J" and PCM harness connector C2 terminal No. 48. See Figure and Figure . If open or short to ground does not exist, go to step  38 . If open or short to ground exists, repair Light Blue/Black wire as necessary. After repairs, go to step  39 .
  30. Disconnect cruise control switch 4-pin harness connector located on multifunction. See CRUISE CONTROL SWITCH  under REMOVAL & INSTALLATION. Check for open or short to ground in Dark Blue wire between CCM harness connector terminal "B" and cruise control switch harness connector. See Figure . If open or short to ground does not exist, go to step  37 . If open or short to ground exists, repair Dark Blue wire as necessary. After repairs, go to step  39 .
  31. Disconnect cruise control switch harness connector. See CRUISE CONTROL SWITCH  under REMOVAL & INSTALLATION. Check for open or short to voltage in Gray/Black wire between CCM harness connector terminal "C" and cruise control switch harness connector terminal. If open or short to voltage does not exist, go to step  37 . If open or short to voltage exists, repair Gray/Black wire as necessary. After repairs, go to step  39 .
  32. Disconnect Powertrain Control Module (PCM) 80-pin Black harness connector C2. PCM is located on right front frame rail, in engine compartment. Check for open or high resistance in Dark Green wire between CCM harness connector terminal "H" and PCM harness connector C2 terminal No. 45. See Figure and Figure . If open or high resistance does not exist, go to step  38 . If open or high resistance exists, repair Dark Green wire as necessary. After repairs, go to step  39 .
  33. Disconnect Powertrain Control Module (PCM) 80-pin Black harness connector C2. PCM is located on right front frame rail, in engine compartment. Check for open or high resistance in Dark Green/White wire between CCM harness connector terminal "K" and PCM harness connector C2 terminal No. 16. See Figure and Figure . If open or high resistance does not exist, go to step  38 . If open or high resistance exists, repair Dark Green/White wire as necessary. After repairs, go to step  39 .
  34. Replace and adjust cruise control brake switch and/or cruise control clutch switch (M/T). See CRUISE CONTROL BRAKE SWITCH & BRAKE SWITCH  and/or CRUISE CONTROL CLUTCH SWITCH (M/T)  under REMOVAL & INSTALLATION. Also see CRUISE CONTROL BRAKE SWITCH & BRAKE SWITCH  and/or CRUISE CONTROL CLUTCH SWITCH (M/T)  under ADJUSTMENTS. After repairs, go to step  39 .
  35. Replace and adjust brake switch. See CRUISE CONTROL BRAKE SWITCH & BRAKE SWITCH  under REMOVAL & INSTALLATION. Also see CRUISE CONTROL BRAKE SWITCH & BRAKE SWITCH  under ADJUSTMENTS. After repairs, go to step  39 .
  36. Replace CCM. See CRUISE CONTROL MODULE  under REMOVAL & INSTALLATION. After repairs, go to step  39 .
  37. Replace cruise control switch. See CRUISE CONTROL SWITCH  under REMOVAL & INSTALLATION. After repairs, go to step  39 .
  38. Replace and program PCM. See POWERTRAIN CONTROL MODULE  under REMOVAL & INSTALLATION. To program PCM, see COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. For 2002, see COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. After repairs, go to next step.
  39. Connect all disconnected components. Operate vehicle within normal cruise control operating conditions. If cruise control operates correctly, system is okay at this time. If cruise control does not operate correctly, go to step  2 .
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