Chrysler Town, Dodge Caravan. Manual — part 813
Symptom:
RIGHT HIGH BEAM HEADLAMP CIRCUIT SHORTED TO GROUND
POSSIBLE CAUSES
FRONT CONTROL MODULE
RIGHT HEADLAMP
RIGHT HIGH BEAM DRIVER CIRCUIT SHORTED TO GROUND
WIRING PROBLEM
WIRING HARNESS INSPECTION
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, erase the Front Control Module DTC’s.
Turn the headlamps on.
Switch the headlamps between high beam and low beam several times, pausing for
5 seconds in each position.
With the DRB, read Front Control Module DTC’s.
Is this DTC present?
All
Yes
→ Go To 2
No
→ Go To 5
2
Turn the ignition off.
Disconnect the Right Headlamp.
Disconnect the Front Control Module from the Intelligent Power Module.
Measure the resistance between Ground and the Right High Beam Driver circuit.
Is the resistance below 100.0 ohms?
All
Yes
→ Repair the Right High Beam Driver circuit for a short to ground
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
3
Turn the ignition off.
Turn the Headlamps off.
Install a substitute Headlamp Bulb in place of the Right Headlamp Bulb.
Turn the ignition on.
With the DRB, erase the Front Control Module DTC’s.
Turn the headlamps on.
Switch the headlamps between high beam and low beam several times, pausing for
5 seconds in each position.
With the DRB, read Front Control Module DTC’s.
Does the DRB display this DTC?
All
Yes
→ Go To 4
No
→ Replace the original Right Headlamp Bulb.
Perform BODY VERIFICATION TEST - VER 1.
488
EXTERIOR LIGHTING
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Inspect the wiring and connectors associated with the Right High Beam Driver
circuit.
Were any problems found?
All
Yes
→ Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
5
Turn the ignition off.
NOTE: Visually inspect the related wiring harness and circuits. Look for
any chafed, pierced, pinched, or partially broken wires.
NOTE: Visually inspect the related wiring harness connectors. Look for
broken, bent, pushed out, or corroded terminals.
Note: Refer to any Technical Service Bulletins (TSB) that may apply.
Were any problems found?
All
Yes
→ Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
489
EXTERIOR LIGHTING
RIGHT HIGH BEAM HEADLAMP CIRCUIT SHORTED TO GROUND —
Continued
Symptom:
RIGHT HIGH BEAM HEADLAMP CIRCUIT SHORTED TO VOLT-
AGE
POSSIBLE CAUSES
FRONT CONTROL MODULE
GROUND CIRCUIT OPEN
HIGH BEAM AND LOW BEAM DRIVERS CIRCUITS SHORTED TOGETHER
RIGHT HEADLAMP
RIGHT HIGH BEAM DRIVER CIRCUIT SHORTED TO VOLTAGE
WIRING PROBLEM
WIRING HARNESS INSPECTION
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, erase the Front Control Module DTC’s.
Turn the headlamps on.
Switch the headlamps between high beam and low beam several times, pausing for
5 seconds in each position.
With the DRB, read Front Control Module DTC’s.
Is this DTC present?
All
Yes
→ Go To 2
No
→ Go To 7
2
Turn the ignition off.
Disconnect the Right Headlamp harness connector.
Using a 12-volt test light connected to 12-volts, check the Ground circuit.
Does the test light illuminate brightly?
All
Yes
→ Go To 3
No
→ Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
3
Turn the ignition off.
Disconnect the Right Headlamp harness connector.
Disconnect the Front Control Module.
Measure the resistance between the Right High Beam Driver circuit and the Right
Low Beam Driver circuit at the Right Headlamp harness connector.
Is the resistance below 100.0 ohms?
All
Yes
→ Repair the Right High Beam Driver circuit for a short to the Right
Low Beam Driver circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
490
EXTERIOR LIGHTING
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the Right Headlamp harness connector.
Disconnect the Front Control Module.
Turn the ignition on.
Measure the voltage of the Right High Beam Driver circuit.
Is the voltage below 1.0 volt?
All
Yes
→ Go To 5
No
→ Repair the Right High Beam Driver circuit for a short to voltage.
Perform BODY VERIFICATION TEST - VER 1.
5
Turn the ignition off.
Turn the Headlamps off.
Install a substitute Headlamp Bulb in place of the Right Headlamp Bulb.
Turn the ignition on.
With the DRB, erase the Front Control Module DTC’s.
Turn the headlamps on.
Switch the headlamps between high beam and low beam several times, pausing for
5 seconds in each position.
With the DRB, read Front Control Module DTC’s.
Does the DRB display this DTC?
All
Yes
→ Go To 6
No
→ Replace the original Right Headlamp Bulb.
Perform BODY VERIFICATION TEST - VER 1.
6
Turn the ignition off.
Inspect the wiring and connectors associated with the Right High Beam Driver
circuit.
Were any problems found?
All
Yes
→ Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
7
Turn the ignition off.
NOTE: Visually inspect the related wiring harness and circuits. Look for
any chafed, pierced, pinched, or partially broken wires.
NOTE: Visually inspect the related wiring harness connectors. Look for
broken, bent, pushed out, or corroded terminals.
Note: Refer to any Technical Service Bulletins (TSB) that may apply.
Were any problems found?
All
Yes
→ Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
491
EXTERIOR LIGHTING
RIGHT HIGH BEAM HEADLAMP CIRCUIT SHORTED TO VOLTAGE —
Continued
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