Pinpoint Test J: The Low Fuel Warning Indicator Is Never On

Instrumentation, Message Center and Warning Chimes

Pinpoint Test J: The Low Fuel Warning Indicator Is Never On

Normal Operation

The low fuel warning indicator illuminates when the Instrument Panel Cluster (IPC) calculation for the Distance To Empty (DTE) reaches 50 miles (80 km) or less. The DTE is calculated internally by the IPC from data received from the PCM and the fuel gauge. If the IPC detects a fault in the fuel input (circuitry or fuel pump module), the IPC defaults the fuel gauge to the empty (E) stop position and illuminates the low fuel warning indicator.

This pinpoint test is intended to diagnose the following:

- IPC

PINPOINT TEST J: THE LOW FUEL WARNING INDICATOR IS NEVER ON

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J1 CARRY OUT THE IPC INDICATOR LAMP ACTIVE COMMAND USING THE SCAN TOOL

- Ignition ON.
- Enter the following diagnostic mode on the scan tool: IPC DataLogger.
- Select the IPC low fuel (LOFUELL) active command. Command the low fuel warning indicator on and off. Observe the low fuel warning indicator.
- Does the low fuel warning indicator illuminate when commanded on and turn off when commanded off?

Yes
GO to J2.

No
INSTALL a new IPC. REFER to Instrument Panel Cluster (IPC) Service and Repair. TEST the system for normal operation.

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J2 CHECK THE DTE STATUS

- Access and observe the message center DTE displayed mileage.
- Does the DTE display indicate 80 km (50 miles) or less until empty?

Yes
INSTALL a new IPC. REFER to Instrument Panel Cluster (IPC) Service and Repair. TEST the system for normal operation.

No
The system is operating correctly at this time. The low fuel warning message does not appear until the DTE is 80 km (50 miles) or less.

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