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All Warning Lights Inoperative

  1. Check RELAYS fuse (10-amp) in interior fuse panel. If fuse is okay, go to next step. If fuse is blown, replace fuse. If fuse blows repeatedly, repair short to ground in Blue wire between fuse panel and instrument cluster.
  2. Remove instrument cluster and disconnect all cluster harness connectors. Measure voltage at cluster connector C266 terminal No. 5 (Blue wire), connector C268 terminal No. 2 (Blue wire) and connector C270 terminal No. 9 (Blue wire). See Figure , Figure and Figure . If battery voltage exists at all terminals specified, go to next step. If battery voltage does not exist at all terminals specified, repair suspect Blue wire for open. Check warning light operation.
  3. Turn ignition off. Measure resistance between ground and cluster harness connector C268 terminal No. 5 (Black/Red wire) and connector C270 terminal No. 6 (Black wire). If resistance measurements are less than 5 ohms, replace instrument cluster printed circuit. If either resistance measurement is greater than 5 ohms, repair open ground wire.
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