For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Check the vehicle for Diagnostic Trouble Codes (DTCs). Are any DTCs present? | -- | Go to Diagnostic Trouble Code (DTC) List in Engine Controls | Go to Step 2
2 |

1. Disconnect the Powertrain Control Module (PCM) connector C2.
2. Turn the ignition switch to the RUN position.

Is the SERVICE ENGINE SOON indicator on?

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Go to Step 3

Go to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls

3 |

1. Check for a short to ground in CKT 419.
2. If OK, replace the instrument cluster. Refer to Instrument Cluster Replacement .

Has the repair been made and the system rechecked?

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System OK

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