Test 3A - Repairing Instrument Cluster Sense Circuits

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION . For wiring diagrams, see WIRING DIAGRAMS . Perform TEST VER-1 after each repair.

CAUTION: Always turn ignition switch to OFF position prior to disconnecting any module connector.

If speedometer does not operate, go to TEST 9A. If speedometer operates improperly, replace odometer. If speedometer operates properly and vehicle is not a Dodge, go to TEST 3B. If vehicle is a Dodge, go to next step.
Using DRB, read cluster ID. If DRB displays CLUSTER ID DODGE, go to step 6). If DRB does not display CLUSTER ID DODGE, turn ignition switch to OFF position. Disconnect instrument cluster connectors. Go to next step.
Connect jumper wire between instrument cluster Black connector terminal No. 10 (Orange/Dark Blue wire) and ground. If DRB displays CLUSTER ID DODGE, replace instrument cluster. If DRB does not display CLUSTER ID DODGE, disconnect jumper wire. Go to next step.
Gain access to Body Control Module (BCM). BCM is located behind right kick panel. With connectors connected, connect jumper wire between BCM Gray connector terminal No. 12 (Orange/Dark Blue wire) and ground. If DRB displays CLUSTER ID DODGE, repair open Orange/Dark Blue wire. If DRB does not display CLUSTER ID DODGE, go to next step.
Turn ignition switch to OFF position. Disconnect and inspect BCM Gray connector. Repair connector as necessary. If connector is okay, replace BCM.
NOTE: English speedometer head displays MPH larger than KM/H.
If speedometer is not an English unit, go to step 9). If speedometer is an English unit, use DRB to read instrument cluster mode status. If DRB displays MIC MODE KM/H, repair or replace instrument cluster as necessary. See INSTRUMENT PANEL article in ACCESSORIES/SAFETY EQUIPMENT. If DRB does not display MIC MODE KM/H, go to next step.
Disconnect instrument cluster connectors. Using DRB, read instrument cluster mode status. If DRB displays MIC MODE KM/H, repair or replace instrument cluster as necessary. See INSTRUMENT PANEL article in ACCESSORIES/SAFETY EQUIPMENT. If DRB does not display MIC MODE KM/H, go to next step.
Disconnect Body Control Module (BCM) connectors. Using DRB in ohmmeter mode, check resistance of BCM Gray connector terminal No. 7 (Light Blue wire). If resistance is less than 5 ohms, repair short to ground in Light Blue wire. If resistance is more than 5 ohms, replace BCM.
Using DRB, read instrument cluster mode status. If DRB displays MIC MODE MPH, repair or replace instrument cluster as necessary. See INSTRUMENT PANEL article in ACCESSORIES/SAFETY EQUIPMENT. If DRB does not display MIC MODE MPH, go to next step.
Ensure ignition switch is in OFF position. Disconnect instrument cluster connectors and BCM connectors. Using DRB in voltmeter mode, check voltage on BCM Gray connector terminal No. 7 (Light Blue wire). If voltage is more than 10 volts, repair short to battery voltage in Light Blue wire and replace instrument cluster. If voltage is less than 10 volts, go to next step.
Reconnect BCM connectors. Connect jumper wire between instrument cluster Black connector terminal No. 9 (Light Blue wire) and ground. If DRB displays MIC MODE MPH, replace instrument cluster. If DRB does not display MIC MODE MPH, go to next step.
Disconnect jumper wire. Connect jumper wire between BCM Gray connector terminal No. 7 (Light Blue wire) and ground. If DRB displays MIC MODE MPH, repair open Light Blue wire. If DRB does not display MIC MODE MPH, go to next step.
Ensure ignition switch is in OFF position. Disconnect and inspect BCM Gray connector. Repair connector as necessary. If connector is okay, replace BCM.