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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 69 (Engine Control System Self-Diagnostics - 3.4L) >> Diagnostic Tests >> DTC P1362: Ic Cylinder No. 2 Not Toggling After Enable >> Diagnostic Procedures

Diagnostic Procedures

WARNING: This page is about a different car, the 2002 Pontiac Grand Am, 2002 Oldsmobile Alero, 2002 Chevrolet Monte Carlo, and 2002 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform diagnostic system check - engine controls. See DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS  under SELF-DIAGNOSTIC SYSTEM. After performing diagnostic system check - engine controls, go to next step.
  2. Install a scan tool. Turn ignition on, with engine off. Monitor the DTC information for DTC P1361 in the Powertrain Control Module (PCM) with a scan tool. Does the scan tool indicate that DTC P1361 is current? If yes, go to step  6. If no, go to next step.
  3. Observe the Freeze Frame/Failure Records data for this DTC. Turn ignition off for 30 seconds. Start the engine. Operate the vehicle within the Conditions for Running the DTC or as close to the Freeze Frame/Failure Records data that you observed. See CONDITIONS FOR RUNNING DTC . Does the DTC fail this ignition? If yes, go to next step. If no, go to INTERMITTENT CONDITIONS  under SELF-DIAGNOSTIC SYSTEM.
  4. Turn ignition off. Disconnect the PCM. Turn ON the ignition. Probe the Ignition Control (IC) timing signal circuit with a test light connected to ground. Does the test light illuminate? If yes, go to next step. If no, go to step  14.
  5. Turn ignition off. Leave the PCM disconnected. Disconnect the IC module connector. Turn ON the ignition. Probe the IC timing signal circuit with a test light connected to ground. Does the test light illuminate? If yes, go to step  10. If no, go to step  13.
  6. Turn ignition off. Disconnect the PCM. Disconnect the IC module. Probe the IC timing control circuit with a test light connected to battery positive voltage. Does the test light illuminate? If yes, go to step  11. If no, go to next step.
  7. Leave the ignition OFF. Leave the PCM disconnected. Leave the IC module disconnected. Probe the IC timing signal circuit with a test light connected to ground. Does the test light illuminate? If yes, go to step  12. If no, go to next step.
  8. Leave the ignition OFF. Leave the PCM disconnected. Leave the IC module disconnected. Test for a short between the IC timing control and IC timing signal circuits. Did you find and correct the condition? If yes, go to step  15. If no, go to next step.
  9. Leave the ignition OFF. Reconnect the IC module. Leave the PCM disconnected. Turn ON ignition. Using DMM, observe the resistance between the IC timing control circuit and a known-good ground while probing the IC timing signal circuit with a test light connected to battery positive voltage. Does the resistance toggle between the two indicated ranges of 100-600 ohms to 6000-10,000 ohms? If yes, go to step  14. If no, go to step  13.
  10. Repair short to voltage in the IC timing signal circuit. After repairs, go to step  15.
  11. Repair short to ground in the IC timing control circuit After repairs, go to step  15.
  12. Repair short to ground in the IC timing signal circuit. After repairs, go to step  15.
  13. Replace IC module. After repairs, go to step  15.
  14. Replace PCM. Perform PCM relearn procedure. See POWERTRAIN CONTROL MODULE  under PROGRAMMING. After replacing PCM, go to next step.
  15. Clear the DTCs with a scan tool. Turn ignition off for 30 seconds. Start the engine. Operate the vehicle within the Conditions for Running the DTC. See CONDITIONS FOR RUNNING DTC . Does the DTC run and pass? If yes, go to next step. If no, go to step  3.
  16. Using scan tool, observe stored information and Capture Info. Does the scan tool display any DTCs that you have not diagnosed? If yes, see DIAGNOSTIC TROUBLE CODE DEFINITIONS . If no, system is okay.
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