Dodge Durango (HB). Manual — part 330
B1648-REAR RIGHT TURN CONTROL CIRCUIT HIGH (CONTINUED)
For the Exterior Lighting System circuit diagram (Refer to 8 - ELECTRICAL/LAMPS/LIGHTING - EXTERIOR -
SCHEMATICS AND DIAGRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Continuously
•
Set Condition:
When the Front Control Module detects a short to battery on the Control circuit.
Possible Causes
(L62) TURN SIGNAL CONTROL CIRCUIT
POWER DISTRIBUTION CENTER
FRONT CONTROL MODULE
Diagnostic Test
1.
TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
Clear all FCM DTC’s
Turn the Right Turn Signal on.
With the scan tool, read DTC’s.
Does the scan tool read: B1648-REAR RIGHT TURN CONTROL CIRCUIT HIGH?
Yes
>> Go To 2
No
>> The conditions that caused this code to set are not present at this time. Using the wiring diagram/sche-
matic as a guide, inspect the wiring and connectors.
Perform BODY VERIFICATION TEST - VER 1.
2.
L62 RIGHT TURN SIGNAL CONTROL CIRCUIT
Turn the ignition off.
Disconnect the PDM connector from the FCM.
Measure the resistance of the (L62) Right Rear Turn Signal Control
circuit.
Is the resistance above 5.0 ohms?
No
>> Repair the (L62) Turn Signal Control circuit.
Perform BODY VERIFICATION TEST - VER 1.
Yes
>> Go To 3
HB
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
8L - 39
B1648-REAR RIGHT TURN CONTROL CIRCUIT HIGH (CONTINUED)
3.
FRONT CONTROL MODULE
Turn the ignition off.
Disconnect the Front Control Module from the PDM 49 way connector.
Measure the voltage between (L62) Right Rear Turn Signal Control circuit and ground.
Is there any voltage present?
Yes
>> Replace the Power Distribution Center.
Perform BODY VERIFICATION TEST - VER 1.
No
>> Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
8L - 40
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
HB
B1659-FRONT FOG LAMP CONTROL CIRCUIT LOW
HB
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
8L - 41
B1659-FRONT FOG LAMP CONTROL CIRCUIT LOW (CONTINUED)
For the Exterior Lighting system circuit diagram (Refer to 8 - ELECTRICAL/LAMPS/LIGHTING - EXTERIOR -
SCHEMATICS AND DIAGRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
•
With the Fog Lamps activated.
•
Set Condition:
•
When the FCM detects a LOW condition.
Possible Causes
(L139) FOG LAMP CONTROL CIRCUIT
FRONT CONTROL MODULE
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.
Diagnostic Test
1.
INTERMITTENT CONDITION
Turn the ignition on.
With the Scan Tool, clear all FCM DTC’s.
Turn the Fog Lamps on.
With the Scan Tool read the DTC information.
Does the Scan Tool read: B1659-FRONT FOG LAMP CONTROL CIRCUIT LOW?
Yes
>> Go To 2
No
>> The condition that caused the symptom is currently not present. Inspect the related wiring for a possible
intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
Perform the BODY VERIFICATION TEST-VER1.
2.
(L139) FOG LAMP CONTROL CIRCUIT
Turn the ignition off.
Disconnect the FCM PDM harness connector.
Measure the resistance between ground and the (L139) Fog Lamp
Control circuit.
Is the resistance below 5.0 ohms?
Yes
>> Replace the Front Control Module (FCM) in accordance
with the service information.
Perform the BODY VERIFICATION TEST VER1.
No
>> Repair the (L139) Fog Lamp Control circuit for a short to
ground condition.
Perform the BODY VERIFICATION TEST VER1.
8L - 42
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
HB
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