Driver Information Center (DIC) Switch Malfunction

Driver Information Center (DIC) Switch Malfunction

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Circuit/System Description

The driver information switches are normally open momentary switches. Power is provided to the driver information center (DIC) switches via the instrument panel cluster (IPC) ignition 1 voltage circuit. The IPC interfaces with the DIC switches via 4 discreet circuits. Each switch input to the cluster is pulled low or grounded when a switch is activated. The DIC switches include the SET/RESET, MENU, INFO UP, and INFO DOWN switches.

Reference Information
Schematic Reference

Instrument Cluster Schematics Instrument Cluster Schematics
Connector End View Reference

Component Connector End Views
Description and Operation

Driver Information Center (DIC) Description and Operation Description and Operation
Electrical Information Reference

* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs

Scan Tool Reference

Control Module References Control Module References for scan tool information

Circuit/System Verification

Ignition ON, verify that when the DIC switches are pressed and released the DIC switch scan tool parameters toggle between Active and Inactive.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the DIC switch assembly.
2. Ignition OFF, test for less than 1 ohm of resistance between the ground circuit terminal 1 and ground.

• If greater than the specified range, test the ground circuit for an open/high resistance.

3. Ignition ON, verify all of the scan tool DIC Switch parameters are Inactive.

• If any are not Inactive, test the switch signal circuits listed below for a short to ground. If the circuit test normal, replace the IPC

* Set/Reset Switch Signal Terminal 2
* Menu Switch Signal Terminal 5
* Info. Up Switch Signal Terminal 7
* Info. Down Switch Signal Terminal 6

4. Ignition ON, install a 3-amp fused jumper wire between the signal circuits listed below and ground. Verify that all of the scan tool DIC Switch parameters are Active.

* Set/Reset Switch Signal Terminal 2
* Menu Switch Signal Terminal 5
* Info. Up Switch Signal Terminal 7
* Info. Down Switch Signal Terminal 6

• If any are not Active, test the switch signal circuit for a short to voltage or an open/high resistance. If the circuits test normal, replace the IPC.

5. If all the circuits test normal, test or replace the DIC switch assembly.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

* Driver Information Display Switch Replacement Service and Repair
* Control Module References Control Module References for IPC replacement, setup, and programming