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Test 9A - Electro/Mechanical Instrument Cluster Diagnostics

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION  . For wiring diagram, see WIRING DIAGRAMS article in this section.
CAUTION: Always turn ignition off prior to disconnecting or connecting any module connector.
NOTE: Electro/Mechanical Instrument Cluster (MIC) is an electronic cluster receiving information from CCD link and displaying information in analog gauges. These test procedures cover both base and premium MIC.
  1. Using DRB, read instrument cluster I.D. status. If DRB displays EIC/US, go to next step. If DRB does not display EIC/US, identify instrument cluster problem and perform test as specified. See INSTRUMENT CLUSTER PROBLEM DIRECTORY  table.
    INSTRUMENT CLUSTER PROBLEM DIRECTORY

    Problem Perform TEST
    Defective Gauges TEST 10A - FAULTY GAUGE 
    Defective Odometer TEST 11A - ELECTRO/MECH 
    Defective Warning Lights TEST 12A - FAULTY ELECTRO/MECH 
    Improper Cluster Illumination TEST 8A - EIC 
  2. Turn ignition off. Disconnect MIC connector. Check connector, and clean or repair connector as necessary. Perform TEST VER-1B  . If connector is okay, go to next step.
  3. Turn ignition on. Connect a jumper wire between cluster ID line No. 1 circuit (Orange/Dark Blue wire) at MIC connector terminal No. 3 and ground. Using DRB, read CLUSTER ID status. If DRB does not display EIC/US, replace MIC. Perform TEST VER-1B  . If DRB displays EIC/US, go to next step.
  4. Disconnect jumper wire. Connect jumper wire between cluster ID line No. 2 circuit (Light Blue wire) at MIC connector terminal No. 5 and ground. If DRB does not display EIC/US, replace MIC. Perform TEST VER-1B  . If DRB displays EIC/US, go to next step.
  5. Disconnect jumper wire. Gain access to Body Control Module (BCM). BCM is located behind center console. Connect a jumper wire between cluster ID line No. 1 circuit (Orange/Dark Blue wire) at Natural BCM connector terminal No. 10 and ground. If DRB does not display EIC/US, repair open Orange/Dark Blue or Light Blue wire. Perform TEST VER-1B  . If DRB displays EIC/US, go to next step.
  6. Connect a jumper wire between cluster ID line No. 2 circuit (Light Blue wire) at Natural BCM connector terminal No. 12 and ground. If DRB does not display EIC/US, repair open Light Blue. Perform TEST VER-1B  . If DRB displays EIC/US, replace BCM.
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