GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the instrument panel cluster (IPC) system check performed?

--

Go to Step 2

Go to Instrument Cluster System Check

2

Test drive the vehicle and monitor the speedometer.

Does the speedometer display vehicle speed?

--

Go to Step 3

Go to Speedometer Inaccurate (J 38522 Unavailable)

3

Replace the IPC. Refer to Instrument Cluster Replacement

Is the repair complete?

--

Go to Instrument Cluster System Check

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