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All Gauges Inoperative

NOTE: Ensure communication can be established with Mechanical Instrument Cluster (MIC), Powertrain Control Module (PCM) and Body Control Module (BCM) before performing test procedure.
  1. Remove and inspect fuse No. 17 (10-amp) located in junction block. See Figure. If fuse is blown, go to next step. If fuse is okay, go to step  4.
  2. Turn ignition off. Replace junction block fuse No. 17. Turn on ignition. Inspect fuse. If fuse is blown, go to next step. If fuse is okay, test is complete. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  3. Disconnect MIC connector. Using DVOM, measure resistance between ground and MIC connector terminal No. 6 (Pink/Red wire). See Fig 1. If resistance is less than 100 ohms, repair short to ground in Pink/Red wire and replace fuse No. 17. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS. If resistance is greater than 100 ohms, replace instrument cluster printed circuit board. See appropriate INSTRUMENT PANELS article. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  4. Turn ignition off. Disconnect MIC connector. Turn ignition on. Using DVOM, measure voltage between ground and MIC connector terminal No. 7 (Dark Blue/White wire). See Fig 1. If voltage is 10.5 volts or greater, go to next step. If voltage is less than 10.5 volts, repair open in Dark Blue/White wire. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  5. Turn ignition off. Turn all lights off. Using DVOM, measure resistance between ground and MIC connector terminals No. 9 (Black wire) and 11 (Black/Orange wire). If resistance is less than 5 ohms for both circuits, go to next step. If resistance is 5 ohms or greater on either circuit, repair open in suspect ground circuit. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  6. Disconnect MIC connector. Ensure fuse No. 17 is installed in junction block. Using DVOM, measure voltage between ground and MIC connector terminal No. 6 (Pink/Red wire). If voltage is 10.5 volts or greater, go to next step. If voltage is less than 10.5 volts, repair open in Pink/Red wire. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
  7. Replace instrument cluster printed circuit board. See appropriate INSTRUMENT PANELS article. Perform BODY VERIFICATION TEST  under VERIFICATION TESTS.
Fig 1: Identifying Instrument Cluster Connector Terminals
G99G02139Courtesy of DAIMLERCHRYSLER CORP.
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