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Home >> Pontiac >> 2001 >> Aztek Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> System Tests >> Test B: Cruise Control Inoperative/Malfunctioning (Using Tester J42958) >> Testing

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

  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 OFF position. Disconnect Cruise Control Module (CCM) 10-pin harness connector. CCM is located on left side of engine compartment, near strut tower. See Figure . Connect Cruise Control Tester (J42958) between CCM and CCM harness connector. Turn ignition switch to RUN position. Turn cruise control switch to OFF position, and monitor LEDs on tester. IGNITION LED should illuminate. If LED illuminates, go to next step. If LED does not illuminate, go to step  20 .
  3. If BRAKE/TCC LED is illuminated, go to next step. If BRAKE/TCC LED is not illuminated, go to step  22 .
  4. If BRAKE LIGHTS LED is not illuminated, go to next step. If BRAKE LIGHTS LED is illuminated, go to step  23 .
  5. Press and release brake pedal. If BRAKE/TCC LED turned off when brake pedal was pressed, go to next step. If BRAKE/TCC LED remained on, go to step  25 .
  6. Turn cruise control switch to ON position. If ON/OFF and INHIBIT/ENABLE LEDs illuminate, leave cruise control switch on and go to next step. If ON/OFF and INHIBIT/ENABLE LEDs do not illuminate, go to step  27 .
  7. If CRUISE LAMP LED illuminates, go to next step. If CRUISE LAMP LED does not illuminate, go to step  28 .
  8. Press and release SET/COAST switch. If SET/COAST LED illuminates when switch is pressed and turns off when switch is released, go to next step. If SET/COAST LED does not function as described, go to step  30 .
  9. Press and release RESUME/ACCEL switch. If RESUME/ACCEL LED illuminates when switch is pressed and turns off when switch is released, go to next step. If RESUME/ACCEL LED does not function as described, go to step  31 .
  10. Perform the following operations in sequence:
    • Press and release INHIBIT OVERRIDE button on cruise control tester.
    • Press and release BRAKE button on cruise control tester.
    • Press and release SET/COAST button on cruise control tester.
    If CRUISE ENGAGE LED illuminates continuously after SET/COAST button was pressed and released, go to next step. If CRUISE ENGAGE LED does not illuminate as described, go to step  20 .
  11. While observing throttle lever on throttle body, press and hold RESUME/ACCEL button on cruise control tester for 5 seconds, then release. If throttle lever moves toward wide open throttle then closes to about one-half throttle, go to next step. If throttle lever did not operate as described, go to step  35 .
  12. While observing throttle lever on throttle body, press and hold SET/COAST button on cruise control tester for 5 seconds, then release. If throttle lever moves toward closed throttle then returns to about one-half throttle, go to next step. If throttle lever did not operate as described, go to step  35 .
  13. Press and release (tap) RESUME/ACCEL button on cruise control tester 3 times. Press and release BRAKE button on cruise control tester. If CRUISE ENGAGE LED turns off and throttle lever returns to closed position, go to next step. If CRUISE ENGAGE LED and throttle lever do not operate as described, go to step  35 .
  14. Raise and support vehicle. Block one drive wheel and place transaxle in DRIVE position. Turn ignition switch to RUN position. If Vehicle Speed Sensor (VSS) LED flashes while rotating drive wheel, go to next step. If VSS LED does not flash, perform engine controls diagnostic system check. See ENGINE CONTROLS DIAGNOSTIC SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM in BODY CONTROL MODULES - AZTEK article.
  15. If Dark Green wire is attached to CCM harness connector terminal "H", go to next step. If there is no wire attached to CCM harness connector terminal "H", go to step  19 . See Figure .
  16. Connect scan tool to Data Link Connector (DLC). DLC is located under left side of instrument panel. Turn ignition switch to RUN position. Using scan tool, select POWERTRAIN SPECIAL FUNCTIONS and then OUTPUT CONTROLS for CRUISE INHIBIT. Observe INHIBIT ENABLE LED, while using scan tool to enable cruise control. If INHIBIT ENABLE LED dimmed during enable command, go to next step. If INHIBIT ENABLE LED did not dim, go to step  32 .
  17. Turn ignition switch to OFF position. Disconnect cruise control tester and reconnect harness connector to CCM. Road test vehicle at speeds greater than 25 MPH and exercise 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 engine controls diagnostic system check. See ENGINE CONTROLS DIAGNOSTIC SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM in BODY CONTROL MODULES - AZTEK article.
  18. If cruise control system operated normally, cruise control concern may be intermittent. See DIAGNOSTIC AIDS  . If cruise control system did not operate normally, go to step  36 .
  19. Reconnect all components. Road test vehicle at speeds greater than 25 MPH and exercise cruise control system. If cruise control system operated normally, cruise control concern may be intermittent. See DIAGNOSTIC AIDS  . If cruise control system does 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 underhood fuse block CRUISE fuse (10-amp). See Figure and Figure . See WIRING DIAGRAMS  . If no problem was found, go to next step. If problem is found, repair as necessary and go to step  38 .
  21. Repair open or high resistance in Black/White wire between ground and CCM harness connector terminal "E". Ground point is located on bell housing left of starter, along with battery ground. After repairs are made, go to step  38 . If no problem was found or condition still exists, go to step  35 .
  22. Check cruise control release switch for proper adjustment. See CRUISE CONTROL RELEASE/BRAKELIGHT SWITCH  under ADJUSTMENTS. Adjust switch if necessary. After adjustment, go to step  38 . If no problem is found or condition still exists, go to step  24 .
  23. Check brakelight switch for proper adjustment. See CRUISE CONTROL RELEASE/BRAKELIGHT SWITCH  under ADJUSTMENTS. Adjust brakelight switch if necessary. After adjustment, go to step  38 . If no problem is found or condition still exists, go to step  26 .
  24. Repair open or short to ground in Brown wire between CCM harness connector terminal "D" and cruise control release switch harness connector terminal "A". See Figure and Figure . After repairs are made, go to step  38 . If no problem was found, go to step  33 .
  25. Repair short to voltage in Brown wire between CCM harness connector terminal "D" and cruise control release switch harness connector terminal "A". After repairs are made, go to step  38 . If no problem was found, go to step  33 .
  26. Repair open or high resistance in White wire between stoplight switch harness connector C1 terminal "B" and CCM harness connector terminal "G". After repairs are made, go to step  38 . If no problem was found, go to step  34 .
  27. Repair open or short to ground in Gray wire between cruise control switch harness connector terminal "B" and CCM harness connector terminal "A". See Figure and Figure After repairs are made, go to step  38 . If no problem was found or condition still exists, go to step  36 .
  28. Disconnect cruise control tester from CCM, but leave it connected to wiring harness. If CRUISE LAMP LED remained off after disconnecting cruise control tester, go to next step. If CRUISE LAMP LED illuminated after disconnection, go to step  36 .
  29. Check for open or short to ground in cruise engaged signal circuit between CCM harness connector terminal "J" and PCM harness connector C2 terminal No. 59 (White wire). See Figure and Figure . If problem is found, repair as necessary and go to step  38 . If no problem was found, go to step  37 .
  30. Check for open or short to ground in set/coast signal circuit between cruise control switch harness connector terminal "D" and CCM harness connector terminal "B" (Dark Blue wire). See Figure and Figure . See WIRING DIAGRAMS  . If problem is found, repair as necessary and go to step  38 . If no problem was found, go to step  36 .
  31. Check for open or short to voltage in resume/accel signal circuit between cruise control switch harness connector terminal "C" and CCM harness connector terminal "C" (Gray/Black wire). See WIRING DIAGRAMS  . If problem is found, repair as necessary and go to step  38 . If no problem was found or condition still exists, go to step  36 .
  32. Check for open or high resistance in cruise control inhibit signal between CCM harness connector terminal "H" and PCM harness connector C1 terminal No. 72 (Dark Green wire). See WIRING DIAGRAMS  . If problem is found, repair as necessary and go to step  38 . If no problem was found, go to step  37 .
  33. Replace control release switch. See CRUISE CONTROL RELEASE/BRAKE LIGHT SWITCH  under REMOVAL & INSTALLATION. After repairs are made, go to step  38 .
  34. Replace brakelight switch. See CRUISE CONTROL RELEASE/BRAKE LIGHT SWITCH  under REMOVAL & INSTALLATION. After repairs are made, go to step  38 .
  35. Replace CCM. See CRUISE CONTROL MODULE  under REMOVAL & INSTALLATION. After repairs are made, go to step  38 .
  36. Replace multifunction switch. See MULTIFUNCTION SWITCH under REMOVAL & INSTALLATION in STEERING COLUMN SWITCHES - AZTEK article. After repairs are made, go to step  38 .
  37. Replace and program PCM. See POWERTRAIN CONTROL MODULE under REMOVAL & INSTALLATION in BODY CONTROL MODULES - AZTEK article. After repairs are made, go to next step.
  38. Road test vehicle at speeds greater than 25 MPH and fully exercise cruise control system. If cruise control system operates normally, testing is complete. If system is inoperative or malfunctions, go to step  2 .
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