Driver Information Center (DIC) Switch Inoperative

Driver Information Center (DIC) Switch Inoperative

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle prior to using the diagnostic procedure. Initial Inspection and Diagnostic Overview
* Review Strategy Based Diagnosis for an overview of the diagnostic approach.
* 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 PERSONALIZATION, SELECT, FUEL, and TRIP switches.

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 both ground circuits terminal 4 and ground.

^ If greater than 1 ohm, test the ground circuits for an open/high resistance.

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

^ If any are not Off, test the appropriate signal circuit for a short to ground. If the circuit tests normal, replace the IPC.

4. Ignition ON, install a 3-amp fused jumper wire between all the signal circuits terminals 2 and 3 and ground. Verify all of the scan tool DIC Switch parameters are On.

^ If any are not On, test the appropriate signal circuit for a short to voltage or an open/high resistance. If the circuit tests 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 after completing the diagnostic procedure. Verification Tests

* Steering Wheel Control Switch Assembly Replacement