Jeep Liberty KJ. Manual - part 55
4.
(N4) FUEL LEVEL SIGNAL CIRCUIT SHORTED TO GROUND
Turn the ignition off.
Disconnect the C2 and C3 PCM harness connectors.
Measure the resistance between ground and the (N4) Fuel Level Signal
circuit at the Fuel Level Sensor harness connector.
Is the resistance below 100 ohms?
Yes
>> Repair the short to ground in the (N4) Fuel Level Signal cir-
cuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
(Refer to 9 - ENGINE - STANDARD PROCEDURE)
No
>> Go To 5
5.
(N4) FUEL LEVEL SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND
Measure the resistance between the (N4) Fuel Level Signal circuit and
the (K900) Sensor ground circuit at the Fuel Pump Module harness
connector.
Is the resistance below 5.0 ohms?
Yes
>> Repair the short between the (K900) Sensor ground and the
(N4) Fuel Level Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
(Refer to 9 - ENGINE - STANDARD PROCEDURE)
No
>> Go To 6
6.
PCM
NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal
push out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors. Pay particular attention to all Power and
Ground circuits.
If there are no possible causes remaining, view repair.
Repair
Replace and program the Powertrain Control Module per Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5. (Refer to 9 - ENGINE - STANDARD PROCE-
DURE)
8J - 26
INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
KJ