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All Warning Indicators Inoperative

WARNING: This page is about a different car, the 1997 Mercury Cougar and 1997 Ford Thunderbird. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition switch to RUN position. Measure voltage between ground and output side of CLUSTER (5-amp) fuse. If battery voltage is present, go to step 3). If battery voltage is not present, go to next step.
  2. Measure voltage between ground and supply side of CLUSTER (5-amp) fuse. If battery voltage is present, go to step 4). If battery voltage is not present, repair open in Red/Light Green wire and retest system.
  3. Turn ignition switch to OFF position. Remove instrument cluster. See INSTRUMENT CLUSTER  under REMOVAL & INSTALLATION. Disconnect cluster connector C251. See Figure. Measure resistance between output side of CLUSTER (5-amp) fuse and cluster connector C251, pin No. 6 (Red/Yellow wire). If resistance is 5 ohms or less, replace instrument cluster printed circuit and retest system. See PRINTED CIRCUIT  under REMOVAL & REPLACEMENT. If resistance is more than 5 ohms, repair open in Red/Yellow wire and retest system.
  4. Turn ignition switch to OFF position. Measure resistance between ground and output side of CLUSTER (5-amp) fuse. If resistance is 10 k/ohms or less, repair short to ground on Red/Yellow wire. If Red/Yellow wire is okay, replace CLUSTER (5-amp) fuse and retest system. If resistance is more than 10 k/ohms, replace CLUSTER (5-amp) fuse and retest system.
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