Inspect the vehicle for diagnostic trouble codes (DTCs).

Has the vehicle been inspected for diagnostic trouble codes (DTCs)?

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Go to Step 2

Refer to Engine Controls.

Operate and inspect the speedometer.

Is the speedometer operating correctly?

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Go to Step 3

Refer to Table 1-All Gauges and Indicators Inop Except Turn Signals, High Beam, Seat Belt Indicators and Illumination Lamps

1. Disconnect the powertrain control module (PCM) connector C1.
2. Turn the ignition switch to the RUN position.

Does the charge warning indicator light?

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Go to Step 4

Go to Step 5

1. Inspect for a short to ground in CKT 25.
2. Replace the instrument cluster if CKT 25 is good. Refer to Instrument Cluster Replacement .
3. Inspect the system.

Is the symptom still present?

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Go to Step 5

System OK

1. Connect a fused (3 amp) jumper between the PCM harness connector C1 terminal 36 and ground.
2. Turn the ignition switch to the RUN position.

Does the charge warning indicator light?

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Refer to Starter and Charging in Engine Electrical.

Go to Step 6

Inspect for a poor connection or an open in CKT 25.

Is there a poor connection or open in CKT 25?

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Go to Step 7

Go to Step 8

1. Repair the poor connection or open in CKT 25.
2. Inspect the system.

Is the symptom still present?

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Go to Step 8

System OK

1. Inspect the warning indicator bulb and bulb connection.
2. Replace the instrument cluster. Refer to Instrument Cluster Replacement .
3. Inspect the system.

Is the symptom still present?

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System OK