Dodge Dakota (ND). Manual — part 296
B165C-PARK LAMP CONTROL CIRCUIT LOW
8L - 46
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
ND
B165C-PARK 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 Park Lamps activated.
•
Set Condition:
•
When the FCM detects a LOW condition.
Possible Causes
(L779) PARK 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 Park Lamps on.
With the Scan Tool read the DTC information.
Does the Scan Tool read: B165C-PARK LAMP CONTROL CIR-
CUIT LOW?
Yes
>> Go To 2
No
>> The condition that caused the symptom is currently not
present. Inspect the related wiring for a possible intermit-
tent condition. Look for any chafed, pierced, pinched, or
partially broken wires.
Perform the BODY VERIFICATION TEST-VER1.
2.
(L779) PARK LAMP CONTROL CIRCUIT
Turn the ignition off.
Disconnect the FCM PDM harness connector.
Measure the resistance between ground and the (L779) Park 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 (L779) Park Lamp Control circuit for a short to
ground condition.
Perform the BODY VERIFICATION TEST VER1.
ND
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
8L - 47
B165D-PARK LAMP CONTROL CIRCUIT HIGH
8L - 48
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
ND
B165D-PARK LAMP 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:
•
With the Front Fog Lamps activated.
•
Set Condition:
•
When the FCM detects a HIGH condition.
Possible Causes
PARK LAMP RELAY
MODULE-POWER DISTRIBUTION
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.
Actuate the Park Lamps.
With the Scan Tool read the DTC information.
Does the Scan Tool read: B165D-PARK LAMP CONTROL CIR-
CUIT HIGH?
Yes
>> Go To 2
No
>> The condition that caused the symptom is currently not
present. Inspect the related wiring for a possible intermit-
tent condition. Look for any chafed, pierced, pinched, or
partially broken wires.
Perform the BODY VERIFICATION TEST-VER1.
2.
PARK LAMP RELAY
Turn the ignition off.
Remove and install a known good relay in place of the Park Lamp Relay.
Do the Front Fog Lamps operate normally?
Yes
>> Replace the Park Lamp Relay in accordance with the service information.
Perform the BODY VERIFICATION TEST VER1.
No
>> Go To 3
ND
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
8L - 49
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