DTC P0462

BHE010200400W05

DTC P0462

Fuel gauge sender unit circuit low input

DETECTION CONDITION

• The PCM monitors the fuel tank level and input voltage from the fuel gauge sender unit when the engine is running. If the input voltage is less than 2.5 V and fuel tank level is full, the PCM determines that the fuel gauge sender unit circuit input voltage is low.

Diagnostic support note

• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• The DTC is stored in the PCM memory.

POSSIBLE CAUSE

• Fuel gauge sender unit malfunction
• Instrument cluster malfunction
• PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1

VERIFY FREEZE FRAME DATA HAS BEEN RECORDED

• Has FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2

VERIFY RELATED REPAIR INFORMATION AVAILABILITY

• Verify related service repair information availability.
• Is any related repair information available?
Yes
Perform repair or diagnosis according to the available repair information.
• If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3

INSPECT INSTRUMENT CLUSTER

• Perform the "INSTRUMENT CLUSTER INPUT/OUTPUT CHECK MODE".
• Is there any malfunction?
Yes
Repair or replace the malfunctioning part, then go to Step 5.
No
Go to the next step.
4

INSPECT FUEL GAUGE SENDER UNIT

• Inspect the fuel gauge sender unit.
• Is there any malfunction?
Yes
Replace the fuel gauge sender unit, then go to the next step.
No
Go to the next step.
5

VERIFY TROUBLESHOOTING OF DTC P0462 COMPLETED

• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the WDS or equivalent.
• Start the engine.
• Drive the vehicle under the FREEZE FRAME DATA condition.
• Is the PENDING CODE same as DTC present?
Yes
Replace the PCM, then go to the next step.
No
Go to the next step.
6

VERIFY AFTER REPAIR PROCEDURE

• Perform the "AFTER REPAIR PROCEDURE".
• Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE.)
No
DTC troubleshooting completed.