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EXTERIOR LIGHTING
Symptom:
LEFT HEADLAMP HIGH BEAM OPEN-IPM
When Monitored and Set Condition:
LEFT HEADLAMP HIGH BEAM OPEN-IPM
When Monitored: Output is OFF.
Set Condition: The IPM detects an open fault condition. Time to set is 5 seconds.
GROUND CIRCUIT OPEN
INTEGRATED POWER MODULE
LEFT HIGH BEAM DRIVER CIRCUIT OPEN
LEFT HIGH BEAM HEADLAMP
WIRING HARNESS INSPECTION
TEST
1
Turn the ignition on.
With the DRBIII , erase the IPM 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 the IPM DTC's.
Does the DRBIII read: Left Headlamp High Beam Open?
Yes → Go To 2
No
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?
Yes → Go To 3
No
3
Turn the ignition off.
Disconnect the Left Headlamp.
Disconnect the IPM C5 harness connector.
Measure the resistance of the Left High Beam Driver circuit.
Is the resistance below 10.0 ohms?
Yes → Go To 4
No
POSSIBLE CAUSES
ACTION
→ Go To 5
→ Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
→ Repair the Left High Beam Driver circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
444
APPLICABILITY
All
All
All
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