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Home >> GMC >> 1999 >> C3500 HD 6.5 F, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Tests W/Codes - Diesel >> Diagnostic Tests >> DTC P0567: Cruise Resume Circuit ("C", "G", "K" & "P" Series) >> Diagnostic Procedures

Diagnostic Procedures

  1. If OBD system check has been performed, go to next step. If OBD system check has not been performed, go to ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM.
  2. Install scan tool. Turn ignition on, with engine off. Turn cruise switch off. If scan tool displays resume switch is on, go to next step. If scan tool does not display that resume switch is on, go to step  4.
  3. Turn ignition off. Disconnect PCM harness connector containing resume switch signal circuit. Turn ignition on, with engine off. Using test light connected to ground, probe resume switch signal circuit at PCM harness connector. If test light illuminates, go to step  5. If test light does not illuminate, go to step  6.
  4. DTC is intermittent. If no additional DTCs are set, see DIAGNOSTIC AIDS . If any additional DTCs are set, go to applicable DTC test.
  5. Check for short to voltage in resume switch signal circuit or resume switch stuck in ON position. Repair as necessary. After repairs, go to step  8.
  6. Replace PCM. Program PCM using required equipment. After replacing PCM, go to next step.
  7. Using scan tool, select DTC, CLEAR INFO. Start and warm engine to normal operating temperature. Select DTC, SPECIFIC, and then enter DTC P0567. Operate vehicle within the 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, repeat step  2.
  8. Using scan tool, select CAPTURE INFO, REVIEW INFO. If any undiagnosed DTC(s) are displayed, go to applicable DTC test.
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