Pinpoint Test F: The Low Fuel Warning Indicator Is Never/Always On

Instrumentation, Message Center and Warning Chimes

Pinpoint Test F: The Low Fuel Warning Indicator Is Never/Always On

Normal Operation

The low fuel warning indicator is illuminated when the fuel level reaches a predetermined level of approximately 1/8 tank. The low fuel warning indicator and the fuel gauge are controlled by the Instrument Cluster (IC) based upon the fuel level data provided by the fuel pump gauge sender. When the IC receives the data, the fuel gauge indicates low fuel and the IC illuminates the low fuel warning indicator.

This pinpoint test is intended to diagnose the following:

- IC



PINPOINT TEST F: THE LOW FUEL WARNING INDICATOR IS NEVER/ALWAYS ON

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F1 CARRY OUT THE IC INDICATOR LAMP ACTIVE COMMAND USING THE SCAN TOOL


- Ignition ON.
- Enter the following diagnostic mode on the scan tool: IC DataLogger.
- Select the IC all lamps (ALL_LAMP) active command on and off. Observe the low fuel warning indicator.
- Does the low fuel warning indicator illuminate when selected on, and turn off when selected off?

Yes
GO to F2.

No
INSTALL a new IC. REFER to Instrument Cluster (IC) Instrument Cluster (IC). TEST the system for normal operation.

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F2 CHECK THE FUEL GAUGE OPERATION


- Ignition ON.
- Check the fuel gauge operation.
- Does the fuel gauge operate correctly?

Yes
INSTALL a new IC. REFER to Instrument Cluster (IC) Instrument Cluster (IC). TEST the system for normal operation.

No
Go To Pinpoint Test B. Pinpoint Test B: Incorrect Fuel Gauge Indication

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