Diagnostic Routine BI

Diagnostic Routine BI

Diagnostic Overview

The Low Fuel Indicator Is Never or Always On

Normal Operation and Fault Conditions

REFER to Low Fuel Indicator .

If the fuel level status message is missing for less than 33 seconds, the IPC (Instrument Panel Cluster) defaults the low fuel indicator to its last state (on or off) based upon the last known good message received.

If the fuel level status message is missing for 33 seconds or longer, the IPC (Instrument Panel Cluster) sets DTC (Diagnostic Trouble Code) U0140:00 in continuous memory, defaults fuel gauge to empty (E) and the low fuel indicator on.

Visual Inspection and Diagnostic Prechecks

If the low fuel indicator is never on, verify the fuel level is less than 8 L (2.11 gal) before beginning diagnostics. If the low fuel indicator is always on, verify the fuel level is above 8 L (2.11 gal) before beginning diagnostics.

Pinpoint Test

1. CHECK THE FUEL GAUGE OPERATION

1. Ignition ON.

2. Monitor the fuel gauge operation.

Does the fuel gauge operate correctly?







2. CHECK THE LOW FUEL INDICATOR OPERATION USING THE DEALER TEST MODE

1. Ignition OFF.

2. Enter the Dealer Test Mode. REFER to Dealer Test Mode .

3. Scroll to LED test.

4. Monitor the low fuel indicator.

5. Exit the Dealer Test Mode.

6. Ignition ON.

7. Monitor the low fuel indicator.

Does the low fuel indicator turn on during the LED test and turn off when exiting the dealer test mode?