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Home >> Chevrolet >> 1997 >> C3500 HD 6.5 F, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 65 (Engine Controls - Tests W/Codes - 4.3L) >> Diagnostic Trouble Codes >> DTC P0507 - Idle System High Idle Air Control Responding >> Diagnostic Procedures

Diagnostic Procedures

WARNING: This page is about a different car, the 1997 GMC Pickup and 1997 Chevrolet Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK. See the F - BASIC TESTING - 4.3L article. After performing OBD system check, go to next step.
  2. Install scan tool. Check if any other DTCs are set. If other DTCs are not set, go to next step. If other DTCs are set, go to that DTC test.
  3. Check if DTC P0507 is active this ignition cycle. If DTC P0507 is active this ignition cycle, go to step 5). If DTC P0507 is not active this ignition cycle, go to next step.
  4. DTC is intermittent. See DIAGNOSTIC AIDS.
  5. Problem is engine mechanical related. Repair as necessary and go to step 7).
  6. Using scan tool, clear codes. Start engine. Idle at operating temperature. Select SPECIFIC DTC for DTC P0507. Operate vehicle under conditions which originally set DTC. If scan tool indicates DTC test has run and passed, go to next step. if not, go to step 2).
  7. Using scan tool, select CAPTURE INFO function. Review stored info. If other DTCs are stored, go to applicable DTC. If not, system is okay.
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