Schematic Reference: Driver Information System Schematics

Connector End View Reference: Master Electrical Component List .

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

1. Turn the ignition ON, with the engine OFF.
2. Observe the wait to start indicator in the message center.

Does the wait to start indicator illuminate in the message center and then turn OFF?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

Does the wait to start indicator illuminate continuously in the message center?

Go to Step 4

Go to Diagnostic Aids

1. Turn the ignition OFF.
2. Disconnect the engine control module (ECM).
3. Turn the ignition ON, with the engine OFF.
4. Observe the wait to start indicator in the message center.

Does the wait to start indicator illuminate continuously in the message center?

Go to Step 5

Go to Step 7

Test the wait to start indicator control circuit for a short to ground. Refer to Circuit Testing and to Wiring Repairs .

Did you find and correct the condition?

Go to Step 10

Go to Step 6

Inspect for poor connections at the harness connector of the message center. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs .

Did you find and correct the condition?

Go to Step 10

Go to Step 8

Inspect for poor connections at the harness connector of the ECM. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs .

Did you find and correct the condition?

Go to Step 10

Go to Step 9

Replace the message center. Refer to Control Module References for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 10

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Replace the ECM. Refer to Control Module References for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 10

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2