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Home >> Chevrolet >> 2000 >> Camaro Base, 2D Convertible, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Self-Diagnostics - 3.8L >> Diagnostic Tests >> DTC P0568: Cruise Control Set Switch Circuit (CAMARO & Firebird) >> Diagnostic Procedures

Diagnostic Procedures

  1. Perform On-Board Diagnostic (OBD) system check. See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM. After performing OBD system check, go to next step.
  2. Turn ignition on. Turn cruise control switch off. Using scan tool, observe cruise control SET/COAST switch parameter. If scan tool indicates that switch is on, go to next step. If scan tool does not indicate that switch is on, see DIAGNOSTIC AIDS .
  3. Turn ignition off. Disconnect TAC module harness connector. Turn ignition on. Using a test light connected to ground, probe SET/COAST switch signal circuit at TAC module harness connector. If test light illuminates, go to next step. If test light does not illuminate, go to step  5.
  4. Check for short to voltage on SET/COAST switch signal circuit. Repair as necessary. After repairs, go to step  7. If circuit is okay, go to step  6.
  5. Replace TAC module. After replacing module, go to step  7.
  6. Replace multifunction switch. After replacing switch, go to next step.
  7. Using scan tool, clear DTCs. Start and warm engine to normal operating temperature. Select DTC, SPECIFIC, then enter this DTC. Operate vehicle within conditions for setting this DTC. If scan tool indicates that this test ran and passed, go to next step. If scan tool does not indicate that this test ran and passed, go to step  2.
  8. Using scan tool, select CAPTURE INFO, REVIEW INFO function. If any undiagnosed DTCs are displayed, go to applicable DTC test. If no undiagnosed DTCs are present, system is okay.
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