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Test UC: Signal Link Fault: Testing

WARNING: This page is about a different car, the 2002 Ford Pickup and 2002 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

  1. Check AFCM PID

    Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, access AFCM and select an active PID. If communication is not possible with AFCM, perform COMPUVALVE CHECK  under QUICK TEST. If fault still exists, replace compuvalve. If communication is possible with AFCM, system is operating correctly at this time. Clear DTCs. Road test vehicle. Repeat AFCM CONTINUOUS MEMORY SELF-TEST . If DTC is set again, perform intermittent testing. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES - EEC-V - BI-FUEL article.
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