GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Driver Information Center Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Driver Information Systems

2

Verify the compass is inaccurate or CAL is displayed.

Does the system operate normally?

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

Go to Step 3

3

Initiate the self-calibration function or set the variance. Refer to Electronic Compass Calibration .

Does the compass display CAL or remain inaccurate?

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Go to Step 4

Go to Step 5

4

Important: Calibrate the compass on the replacement DIC. Refer to Electronic Compass Calibration .

Replace the DIC. Refer to Driver Information Center Replacement .

Did you complete the replacement?

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Go to Step 5

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5

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 3