Dodge Durango (HB). Manual — part 880
P0463-FUEL LEVEL SENSOR 1 CIRCUIT HIGH (CONTINUED)
4.
(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 C2 Cluster harness con-
nector.
Is the resistance below 5.0 ohms?
Yes
>> Go To 5
No
>> Repair the open in the (N4) Fuel Level Signal circuit.
Perform BODY VERIFICATION TEST-VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING)
5.
(N5) FUEL LEVEL SENSOR RETURN CIRCUIT OPEN
Measure the resistance of the (N5) Fuel Level Sensor Return circuit
from the Fuel Pump Module harness connector to the C2 Cluster har-
ness connector.
Is the resistance below 5.0 ohms?
Yes
>> Go To 6
No
>> Repair the open in the (N5) Fuel Level Sensor Return cir-
cuit.
Perform BODY VERIFICATION TEST-VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING)
HB
ENGINE ELECTRICAL DIAGNOSTICS
9 - 519
P0463-FUEL LEVEL SENSOR 1 CIRCUIT HIGH (CONTINUED)
6.
INSTRUMENT CLUSTER
NOTE: Before continuing, check the Instrument Cluster 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.
Were there any problems found?
Yes
>> Repair as necessary.
Perform BODY VERIFICATION TEST-VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES/FRONT CONTROL MODULE - DIAGNOSIS AND TESTING)
No
>> Replace and program the Instrument Cluster per Service Information.
Perform BODY VERIFICATION TEST-VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES/FRONT CONTROL MODULE - DIAGNOSIS AND TESTING)
9 - 520
ENGINE ELECTRICAL DIAGNOSTICS
HB
P0480-COOLING FAN 1 CONTROL CIRCUIT
HB
ENGINE ELECTRICAL DIAGNOSTICS
9 - 521
P0480-COOLING FAN 1 CONTROL CIRCUIT (CONTINUED)
For the Engine circuit diagram (Refer to 9 - ENGINE - SCHEMATICS AND DIAGRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on. Battery voltage greater than 10 volts.
•
Set Condition:
An open or shorted circuit is detected in the radiator fan relay control circuit. One Trip Fault. Three good trips
to turn off the MIL.
Possible Causes
INTERNAL (A16) FUSED B+ CIRCUITS
(N201) COOOLING FAN NO.1 RELAY CONTROL CIRCUIT OPEN
(N201) COOOLING FAN NO.1 RELAY CONTROL CIRCUIT SHORTED TO GROUND
LOW SPEED RADIATOR FAN RELAY
FRONT CONTROL MODULE
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
Diagnostic Test
1.
LOW SPEED RADIATOR FAN RELAY OPERATION
Ignition on, engine not running.
With a scan tool, actuate the Low Speed Radiator Fan Relay.
Is the Cooling Fan Relay operating?
Yes
>> Refer to the INTERMITTENT CONDITION Diagnostic Procedure.
Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE)
No
>> Go To 2
2.
(A16) FUSED B+ CIRCUITS
Turn the ignition off.
Remove the Low Speed Radiator Fan Relay.
Using a 12-volt test light connected to ground, probe the (A16) Fused B+ circuits.
Does the test light illuminate brightly?
Yes
>> Go To 3
No
>> Repair the open or short to ground in the (A16) Fused B+ circuits. Inspect the related fuse and repair
as necessary.
Perform BODY VERIFICATION TEST-VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES/FRONT CONTROL MODULE - DIAGNOSIS AND TESTING)
9 - 522
ENGINE ELECTRICAL DIAGNOSTICS
HB
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