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Test E: Warning Indicator Is Off With Ignition On, Engine Is Not Running

WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.

  1. Check Charging System Warning Indicator Operation

    Connect New Generation Star (NGS) tester to Data Link Connector (DLC). Turn ignition on. Enter the ACTIVE COMMANDS diagnostic mode on NGS tester. Using ACTIVE COMMANDS, turn on the charging system warning indicator in the instrument cluster. Is the charging system warning indicator on? If yes, go to next step. If no, see appropriate ANALOG INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT.

  2. Check For Correct PCM Operation

    Turn ignition off. Disconnect PCM connector. Check for corrosion and pushed-out pins. Connect any disconnected connectors. Make sure all other system connectors are fully seated. Operate the system and verify the concern is still present. Is the concern still present? If yes, install a new PCM. See COMPUTERIZED ENGINE CONTROLS in appropriate REMOVAL & INSTALLATION article in ENGINE PERFORMANCE. Repeat the PCM self-test. If no, the system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. Clear the DTCs. Repeat the self-test.
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