Schematic Reference: Instrument Cluster Schematics

1

Did you perform the Instrument Cluster Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

1. Install a scan tool.
2. Turn the ignition ON, with the engine OFF.
3. Press and release each of the driver information center (DIC) buttons.
4. With a scan tool, observe the following DIC switch parameters in the instrument panel cluster (IPC) Inputs for Analog Dash data list.

•	Dis. Information Reset Sw.

•	Display Information Sw.

•	Display Trip Reset Sw.

Do the DIC switch parameters display On when each DIC button is pressed and Off when each DIC button is released?

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

Go to Step 3

Do the DIC switch parameters display Off when each DIC button is pressed?

Go to Step 9

Go to Step 4

Does the suspected DIC switch parameter display Off when the suspected DIC button is pressed?

Go to Step 6

Go to Step 5

1. Turn the ignition OFF.
2. Disconnect the DIC switch.
3. Turn the ignition ON, with the engine OFF.
4. With a scan tool, observe the suspected DIC switch parameter.

Does the suspected DIC switch parameter display On for the suspected DIC button?

Go to Step 7

Go to Step 10

1. Turn the ignition OFF.
2. Disconnect the DIC switch.
3. Connect a 3 ampere fused jumper between the signal circuit of the suspected DIC switch and a good ground. Refer to Circuit Testing in Wiring Systems.
4. Turn the ignition ON, with the engine OFF.
5. With a scan tool, observe the suspected DIC switch parameter.

Does the suspected DIC switch parameter display On for the suspected button?

Go to Step 10

Go to Step 8

Test the signal circuit of the suspected DIC button for a short to ground. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 14

Go to Step 11

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

Did you find and correct the condition?

Go to Step 14

Go to Step 11

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

Did you find and correct the condition?

Go to Step 14

Go to Step 10

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

Did you find and correct the condition?

Go to Step 14

Go to Step 12

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

Did you find and correct the condition?

Go to Step 14

Go to Step 13

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

Did you complete the replacement?

Go to Step 14

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Important: Program the replacement IPC.

Replace the IPC. Refer to Instrument Cluster Replacement .

Did you complete the replacement?

Go to Step 14

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2