Specifications

Symptom List:

P0180-FUEL TEMPERATURE SENSOR CIRCUIT - SIGNAL VOLT-

AGE TOO LOW

P2625-FUEL TEMPERATURE SENSOR PLAUSIBILITY

Test Note: All symptoms listed above are diagnosed using the same tests.

The title for the tests will be P0180-FUEL TEMPERATURE

SENSOR CIRCUIT - SIGNAL VOLTAGE TOO LOW.

When Monitored and Set Condition:

P0180-FUEL TEMPERATURE SENSOR CIRCUIT - SIGNAL VOLTAGE TOO LOW

When Monitored: With the ignition on.

Set Condition: The fuel temperature sensor signal voltage is below 0.8 volt.

P2625-FUEL TEMPERATURE SENSOR PLAUSIBILITY

When Monitored: With the ignition on.

Set Condition: The Mass Air Flow Sensor Signal voltage is above 4.8 volts.

POSSIBLE CAUSES

INTERMITTENT CONDITION

FUEL TEMPERATURE SENSOR

FUEL TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND

FUEL TEMPERATURE SENSOR SIGNAL AND GROUND CIRCUITS SHORTED TOGETHER

ENGINE CONTROL MODULE

TEST ACTION APPLICABILITY

1 NOTE: If the ECM detects and stores a DTC, the ECM also stores the

engine/vehicle operating conditions under which the DTC was set. Some of

these conditions are displayed on the DRB at the same time the DTC is

displayed.

NOTE: Before erasing stored DTCs, record these conditions. Attempting to

duplicate these conditions may assist when checking for an active DTC.

Turn the ignition on.

With the DRB, monitor the Fuel Temperature Sensor voltage.

Is the Fuel Temperature Sensor voltage below 0.10 volt?

All

Yes → Go To 2

No → Go To 5

DRIVEABILITY - DIESEL