Jeep Liberty KJ. Manual — part 57
8.
(N4) FUEL LEVEL SIGNAL CIRCUIT SHORTED BATTERY TO VOLTAGE
Turn the ignition off.
Disconnect the BCM C2 harness connectors.
Ignition on, engine not running.
Measure the voltage on the (N4) Fuel Level Signal circuit at the Fuel
Pump Module harness connector.
Is the voltage above 5.3 volts?
Yes
>> Repair the short to voltage in the (N4) Fuel Level Signal cir-
cuit.
Perform BODY VERIFICATION TEST VER -1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
No
>> Go To 9
9.
(N4) FUEL LEVEL SIGNAL CIRCUIT OPEN
Turn the ignition off.
Measure the resistance of the (N4) Fuel Level Signal circuit from the
Fuel Pump Module harness connector to the appropriate terminal in
Miller Special Tool #8815.
Is the resistance below 5.0 ohms?
Yes
>> Go To 10
No
>> Repair the open in the (N4) Fuel Level Signal circuit.
Perform BODY VERIFICATION TEST VER - 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
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INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
KJ
10.
(K310) SENSOR GROUND CIRCUIT OPEN
Measure the resistance of the (K310) Sensor ground circuit from the
Fuel Pump Module harness connector to the appropriate terminal of
Miller Special Tool #8815.
Is the resistance below 5.0 ohms?
Yes
>> Go To 11
No
>> Repair the open in the (K310) Sensor ground circuit.
Perform BODY VERIFICATION TEST VER - 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
11.
BCM
NOTE: Before continuing, check the BCM 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 Body Control Module per Service Information.
Perform BODY VERIFICATION TEST VER - 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
KJ
INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
8J - 35
12.
(N4) FUEL LEVEL SIGNAL CIRCUIT SHORTED TO VOLTAGE
Turn the ignition off.
Disconnect the BCM C2 harness connectors.
Ignition on, engine not running.
Measure the voltage on the (N4) Fuel Level Signal circuit at the Fuel
Pump Module harness connector.
Is the voltage above 5.3 volts?
Yes
>> Repair the short to voltage in the (N4) Fuel Level Signal cir-
cuit.
Perform BODY VERIFICATION TEST VER - 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
No
>> Go To 13
13.
(K304) FUEL LEVEL SIGNAL CIRCUIT OPEN
Turn the ignition off.
Measure the resistance of the (K304) Fuel Level Signal circuit from the
Fuel Pump Module harness connector to the appropriate terminal in
Miller Special Tool #8815.
Is the resistance below 5.0 ohms?
Yes
>> Go To 14
No
>> Repair the open in the (K304) Fuel Level Signal circuit.
Perform BODY VERIFICATION TEST VER - 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
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INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
KJ
14.
(K300) SENSOR GROUND CIRCUIT OPEN
Measure the resistance of the (K300) Sensor ground circuit from the
Fuel Pump Module harness connector to the appropriate terminal of
Miller Special Tool #8815.
Is the resistance below 5.0 ohms?
Yes
>> Go To 15
No
>> Repair the open in the (K300) Sensor ground circuit.
Perform BODY VERIFICATION TEST VER - 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES
-
STANDARD PROCEDURE)
15.
BCM
NOTE: Before continuing, check the BCM 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 Body Control Module per Service Information.
Perform BODY VERIFICATION TEST VER - 1 (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE).
KJ
INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
8J - 37
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