Pinpoint Tests AK: The Low Fuel Message Center Indicator Is Never On

Instrumentation, Message Center and Warning Chimes

Pinpoint Tests

Pinpoint Test AK: The Low Fuel Message Center Indicator Is Never On

Normal Operation

The low fuel message center indicator illuminates based upon the Distance To Empty (DTE) calculation. The DTE is calculated internally by the Instrument Panel Cluster (IPC) from data received from the PCM and the hardwired fuel level input. When the IPC determines that the DTE reaches approximately one-eighth of a tank of fuel (80 km [50 miles]) or less, the fuel gauge indicates empty and the IPC turns on the low fuel message center indicator.

This pinpoint test is intended to diagnose the following:

- IPC


PINPOINT TEST AK: THE LOW FUEL MESSAGE CENTER INDICATOR IS NEVER ON

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AK1 VERIFY THE OPERATION OF THE POWERTRAIN MALFUNCTION (WRENCH) AND ENGINE OVER-TEMPERATURE MESSAGE CENTER INDICATORS


- Ignition OFF.
- Disconnect: In-Line C219 .
- Ignition ON.

- NOTE: If multiple warnings are present, the message center indicators rotate through each of the warnings. Allow the displays to rotate through each display while determining whether the powertrain malfunction (wrench) and over-temperature message center indicators are active.

- Observe the message center or integrated display area of the IPC with the PCM connected and disconnected.
- Do the powertrain malfunction (wrench) and engine over-temperature message center warning indicators remain off when the PCM is connected and become active with the PCM disconnected?

Yes
GO to AK2.

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

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AK2 CHECK THE DTE OPERATION


- Ignition ON.
- 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) Instrument Panel Cluster (IPC). 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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