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Home >> Chevrolet >> 2001 >> Camaro Base, 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Engine Control System Self-Diagnostics - 5.7L) >> Diagnostic Tests >> DTC P1652: Powertrain Induced Chassis Pitch Output Circuit ("Y" Body) >> Diagnostic Procedures

Diagnostic Procedures

WARNING: This page is about a different car, the 2000 Pontiac Firebird, 2000 Chevrolet Corvette, and 2000 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform On-Board Diagnostic (OBD) system check. See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK . After performing OBD system check, go to next step.
  2. Turn ignition off. Disconnect Electronic Suspension Control (ESC) module harness connector. Turn ignition on, with engine off. Using a test light connected to battery voltage, probe powertrain induced chassis pitch control circuit. If test light illuminates, go to step  4. If test light does not illuminate, go to next step.
  3. Using scan tool, command chassis pitch signal ON. If test light illuminates, repair Electronic Suspension System as necessary. See appropriate ELECTRONIC article in SUSPENSION. If test light does not illuminate, go to step  5.
  4. Check chassis pitch control circuit for short to ground. Repair as necessary. After repairs, go to step  8. If circuit is okay, go to step  7.
  5. Check chassis pitch control circuit for open. Repair as necessary. After repairs, go to step  8. If circuit is okay, go to next step.
  6. Check terminal connections at PCM. Repair terminals as necessary. After repairs, go to step  8. If terminals are okay, go to next step.
  7. Replace PCM. Program replacement PCM using required equipment. After replacing PCM, go to next step.
  8. Using scan tool, select DTC, CLEAR INFO function. 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, repeat step  2.
  9. Using scan tool, select CAPTURE INFO, REVIEW INFO function. If any undiagnosed DTCs are displayed, go to applicable DTC test.
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