Schematic Reference: Instrument Cluster Schematics

DEFINITION: One or more DIC switches are inoperative.

Did you perform the Instrument Cluster Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. Press each driver information center (DIC) switch one at a time.
4. With a scan tool, observe the following DIC switch parameters in the instrument cluster (IPC) data list:

•	Display Fuel Switch (uplevel)

•	Display Gauge Switch (uplevel)

•	English/Metric Sw.

•	Odo/Trip Switch (uplevel)

•	Reset Switch (uplevel)

•	Trip Reset Switch (base)

Does the scan tool display On or Active when each switch is pressed?

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Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

Does the scan tool display On or Active when any switch is pressed?

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Go to Step 4

Go to Step 6

1. Turn OFF the ignition.
2. Disconnect the DIC switch.
3. Connect a 3 amp fused jumper wire between the signal circuit of the suspect DIC switch and a good ground.
4. Turn ON the ignition, with the engine OFF.
5. With a scan tool, observe the suspect DIC Switch parameter.

Does the scan tool display On or Active?

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Go to Step 7

Go to Step 5

Test the signal circuit of the suspect DIC switch for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 11

Go to Step 8

Test the ground circuit of the DIC switch for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 11

Go to Step 7

Inspect for poor connections at the harness connector of the DIC switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 11

Go to Step 9

Inspect for poor connections at the harness connector of the instrument cluster (IPC). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 11

Go to Step 10

Replace the DIC switch. Refer to Driver Information Display Switch Replacement .

Did you complete the replacement?

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Go to Step 11

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Replace the IPC. Refer to Instrument Cluster Replacement .

Did you complete the replacement?

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Go to Step 11

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Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 3