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P2108-ELECTRONIC THROTTLE CONTROL MODULE PERFORMANCE For the Engine circuit diagram (Refer to 9 - ENGINE - SCHEMATICS AND DIAGRAMS). For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes POWERTRAIN CONTROL MODULE NEEDS TO BE REPROGRAMMED Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. REPROGRAM THE POWERTRAIN CONTROL MODULE Check for any related TSBs. Verify the PCM is at the latest calibration (flash level). NOTE: Inspect the Intake Manifold components for vacuum leaks, repair as necessary NOTE: An intermittent loss of power to the PCM without performing an ETC Relearn procedure may cause NOTE: Diagnose any other DTCs that may have set with the P2108. Start the engine. Allow the engine to reach normal operating temperature. Operate the accelerator pedal. (do not exceed 3500 rpm) Test drive the vehicle for 10 miles on a flat road surface. Does this DTC reset by itself? Yes >> Replace and reprogram the Powertrain Control Module per Service Information. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) No >> Test Complete. 9 - 846 ENGINE - ELECTRICAL DIAGNOSTICS - 3.7L/4.7L/5.7L DR/DH |