TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect the Fuel Injection Pump harness connector.
Measure the resistance between ground and the Fuel Temperature Sensor Signal
circuit.
Is the resistance above 100 kohms?
All
Yes
→
Go To
4
No
→
Repair the Fuel Temperature Sensor Signal circuit for a short to
ground.
Perform ROAD TEST VERIFICATION - VER-2.
4
Turn the ignition off.
Disconnect the ECM harness connectors.
Disconnect the Fuel Injection Pump harness connector.
Measure the resistance between the Fuel Temperature Sensor Signal circuit and
Sensor Ground circuit.
Is the resistance above 100 kohms?
All
Yes
→
Go To
5
No
→
Repair the Fuel Temperature Sensor Signal and Ground circuits
for a short together.
Perform ROAD TEST VERIFICATION - VER-2.
5
Disconnect the Fuel Injection Pump harness connector.
Measure the resistance between the following cavities in the Fuel Injection Pump
connector (fuel pump side):
Cavity 1 to cavities 4, 5, 6, 7, 8, 9, and 10.
Cavity 4 to cavities 5, 6, 7, 8, 9, and 10.
Cavity 5 to cavities 6, 7, 8, and 9.
Cavity 7 to cavities 6, 8, 9, and 10.
Cavity 8 to cavities 6 and 10.
NOTE: The resistance should be above 100 ohms for all measurements.
Is the resistance above 100 ohms for each of the measurements?
All
Yes
→
Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
Replace the Fuel Injection Pump in accordance with the Service
Information.
Perform ROAD TEST VERIFICATION - VER-2.
60
DRIVEABILITY - DIESEL
P0180-FUEL TEMPERATURE SENSOR SRC LOW EXCEEDED —
Continued