Test E: Warning Indicator Off With Ignition On

Connect New Generation Star (NGS) tester to Data Link Connector (DLC). Turn ignition on. Using NGS tester, perform Powertrain Control Module (PCM) self-test. If no DTCs are retrieved, go to next step. If any Diagnostic Trouble Codes (DTC) are retrieved, perform appropriate test in accordance with DTC retrieved. See DIAGNOSTIC TROUBLE CODE DEFINITIONS in SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
Turn ignition off. Disconnect NGS tester and generator 3-pin harness connector. Turn ignition on. Connect a fused (15-amp) jumper wire between generator harness connector terminal No. 2 (Gray/Red wire) and ground. See Figure. If warning indicator does not illuminate, go to next step. If warning indicator illuminates, replace generator. See GENERATOR under REMOVAL & INSTALLATION.
Disconnect PCM harness connector C175c. Inspect harness connector for pushed out pins, corrosion or bent terminals. Repair as necessary. If harness connector is okay, reconnect and retest system operation. If fault is still present, replace PCM. Clear DTCs and repeat PCM self-test. If fault is still not present, system is operating correctly at this time.