Chrysler Town, Dodge Caravan. Manual — part 805
Symptom:
LEFT FRONT TURN SIGNAL OUTPUT SHORT
When Monitored and Set Condition:
LEFT FRONT TURN SIGNAL OUTPUT SHORT
When Monitored:
Ignition and left turn signal On.
Set Condition:
When output voltage status is Low.
POSSIBLE CAUSES
INTERMITTENT CONDITION
LEFT FRONT TURN SIGNAL OUTPUT SHORT TO GROUND
TURN SIGNAL LAMP
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, clear all BCM DTC’s.
Actuate the Turn Signals.
With the DRBIII
t, read the DTC information.
Does the DRBIII
t read: Left Front Turn Signal Output Short?
All
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 BODY VERIFICATION TEST - VER 1.
2
Turn the ignition off.
Disconnect the Left Front Turn Signal Lamp connector.
Disconnect the BCM C2 harness connector.
Measure the resistance between the Left Front Turn Signal Output circuit and
ground.
Is the resistance below 100.0 ohms?
All
Yes
→ Repair the Left Front Turn Signal Output circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
456
EXTERIOR LIGHTING
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the Left Front Turn Signal Lamp connector.
Turn the ignition on.
Turn the Left Turn Signal on.
Using a 12-volt test light connected to ground, check the Left Front Turn Signal
Output circuit.
Does the test light illuminate brightly?
All
Yes
→ Replace the Turn Signal Lamp.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
457
EXTERIOR LIGHTING
LEFT FRONT TURN SIGNAL OUTPUT SHORT —
Continued
Symptom:
LEFT HIGH BEAM HEADLAMP CIRCUIT OPEN
POSSIBLE CAUSES
FRONT CONTROL MODULE
GROUND CIRCUIT OPEN
LEFT HEADLAMP
LEFT HIGH BEAM DRIVER CIRCUIT OPEN
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 Left Headlamp harness connector.
Using a 12-volt test light connected to 12-volts, check the Ground circuit.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
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 Left Headlamp.
Disconnect the Front Control Module from the Intelligent Power Module.
Measure the resistance of the Left High Beam Driver circuit.
Is the resistance below 10.0 ohms?
All
Yes
→ Go To 4
No
→ Repair the Left High Beam Driver circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
458
EXTERIOR LIGHTING
TEST
ACTION
APPLICABILITY
4
Turn the ignition off.
Disconnect the Left Headlamp harness connector.
Using a 12-volt test light connected to ground, check the Left High Beam Driver
circuit in the Left Headlamp harness connector.
Turn the high beam headlamps on.
NOTE: The test light must illuminate brightly. Compare the brightness to
that of a direct connection to the battery.
Does the test light illuminate brightly?
All
Yes
→ Replace the Left Headlamp Bulb.
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.
459
EXTERIOR LIGHTING
LEFT HIGH BEAM HEADLAMP CIRCUIT OPEN —
Continued
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