Important: In order to avoid misdiagnosis, ensure that you zero the J 39200 before taking measurements.

1

Did you inspect the vehicle for any instrument cluster Diagnostic Trouble Codes (DTCs)?

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Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

Inspect for any stored instrument cluster Diagnostic Trouble Codes (DTCs).

Are any DTCs stored in memory?

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Go to Diagnostic Trouble Code (DTC) List/Type

Go to Step 3

1. Install a Scan Tool scan tool.
2. Turn the ignition switch to the RUN position.
3. Establish communication with the instrument cluster.
4. Select special functions under the main menu.
5. Select output control under special functions.
6. Select fuel gauge sweep test under output control main menu.

Does the fuel gauge perform a full sweep when commanded?

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Go to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 3.1L

or

Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 3.8L

Go to Step 4

1. Replace the instrument cluster. Refer to Instrument Cluster Replacement
2. Inspect the system.

Is the repair complete?

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System OK

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