Dodge Durango (HB). Manual — part 322
B1630-RIGHT LOW BEAM CONTROL CIRCUIT HIGH
HB
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
8L - 7
B1630-RIGHT LOW BEAM 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 Headlamps activated.
•
Set Condition:
•
When the FCM detects a LOW condition.
Possible Causes
(L44) RIGHT LOW BEAM 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 Headlamps on.
With the Scan Tool read the DTC information.
Does the Scan Tool read: B1630-RIGHT LOW BEAM CONTROL CIRCUIT HIGH?
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 - VER 1.
2.
(L44) RIGHT LOW BEAM CONTROL CIRCUIT
Turn the ignition off.
Disconnect the FCM C2 harness connector.
Measure the resistance of the (L44) Right Low Beam Control circuit.
Is the resistance above 5.0 ohms?
Yes
>> Repair the (L44) Right Low Beam Control circuit for a
short to battery condition.
Perform the BODY VERIFICATION TEST - VER 1.
No
>> Replace the Front Control Module (FCM) in accordance
with the service information.
Perform the BODY VERIFICATION TEST - VER 1.
8L - 8
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
HB
B1633-LEFT HI BEAM CONTROL CIRCUIT LOW
HB
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
8L - 9
B1633-LEFT HI BEAM 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 Headlamps activated.
•
Set Condition:
•
When the FCM detects a LOW condition.
Possible Causes
(L33) LEFT HIGHBEAM OUTPUT 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 Highbeam Headlamps on.
With the Scan Tool read the DTC information.
Does the Scan Tool read: B1633-LEFT HI BEAM 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 - VER 1.
2.
(L33) LEFT HIGHBEAM OUTPUT CIRCUIT
Turn the ignition off.
Disconnect the FCM C2 harness connector.
Measure the resistance between ground and the Left Highbeam Out-
put 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 - VER 1.
No
>> Repair the (L33) Left Highbeam Output circuit for a short
to ground condition.
Perform the BODY VERIFICATION TEST - VER 1.
8L - 10
LAMPS/LIGHTING - EXTERIOR - ELECTRICAL DIAGNOSTICS
HB
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