GM Service Manual Online
For 1990-2009 cars only

Circuit Description

The odometer portion of the instrument cluster EEPROM, which stores the vehicle mileage, has an unrecoverable error. The odometer is no longer accurate.

Conditions for Running the DTC

The diagnostic test is performed once every 0.3 seconds during normal running mode and service diagnostics mode. The diagnostic test is not run when the instrument cluster EEPROM is performing read or write operations.

Conditions for Setting the DTC

The instrument cluster detects an EEPROM error.

Action Taken When the DTC Sets

The instrument cluster displays the word ERROR in the season odometer display.

Conditions for Clearing the DTC

The instrument cluster performs a successful write to the EEPROM.

Diagnostic Aids

    • Refer to the most recent service information in order to obtain the approximate vehicle mileage.
    • Contact an authorized Delco® service center.
    • Return the faulty instrument cluster to the service center.

Step

Action

Value(s)

Yes

No

1

Did you perform the Instrument Cluster Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2

Replace the instrument cluster (IPC). Refer to Instrument Cluster Replacement .

Did you complete the replacement?

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System OK

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