LEMON Manuals: Even more car manuals for everyone
Home >> Lincoln >> 2002 >> LS 3.9 A >> Repair and Diagnosis >> Electrical >> Charging Systems >> Generators & Regulators >> System Tests >> Test E: Warning Indicator Off With Ignition On

Test E: Warning Indicator Off With Ignition On

  1. 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 appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
  2. Turn ignition off. Disconnect NGS tester and generator 3-pin harness connector. Turn ignition on. Connect a fused (15-amp) jumper wire between generator 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.
  3. Turn ignition off. Disconnect PCM harness connector C175c. Measure resistance between PCM harness connector C175c terminal No. 28 and generator connector C102a terminal No. 2 (Gray/Red wire), harness side. See Figure . If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair Gray/Red wire between PCM and generator connector.
  4. 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.
scientia non olet · About LEMON Manuals