Diagnosis And Testing; Diagnosis And Testing - Headlamp; Leveling Motor - Export; Diagnosis And Testing - Headlamp Leveling System - Export - Chrysler Concorde 2004 Service Manual

8L - 24 LAMPS/LIGHTING - EXTERIOR
HEADLAMP LEVELING MOTOR - EXPORT (Continued)

DIAGNOSIS AND TESTING

DIAGNOSIS AND TESTING - HEADLAMP

LEVELING MOTOR - EXPORT

CONDITION
ONE MOTOR DOES NOT
OPERATE.
BOTH MOTORS DO NOT
OPERATE.
DIAGNOSIS AND TESTING - HEADLAMP
LEVELING SYSTEM - EXPORT
NOTE: The battery must be completely charged
(12v) prior to testing. It may also be necessary to
install a battery charger on the vehicles electrical
system when performing this test. Refer to the Elec-
trical, Battery System for detailed information.
(1) Rotate the headlamp switch (low beam) to the
ON position.
(2) Disconnect the headlamp wire harness jumper
electrical connector. This connector can be accessed
by opening the bulb access panel, found in the appro-
priate front wheel well splash shield.
(3) Check PIN #1 for battery voltage. If not
present, trace the circuit until the open or short is
found.
(4) Check PIN #2 for ground. If not present, trace
the circuit until the open or short is found.
(5) Check PIN #3 for headlamp leveling sense volt-
age (2.83 - 8.60v). If not present, trace circuit until
open or short is found.
(6) If no open or short is found and the headlamp
leveling system is still inoperative, replace the head-
lamp leveling motor (Refer to 8 - ELECTRICAL/
LAMPS/LIGHTING - EXTERIOR/HEADLAMP UNIT

- REMOVAL).

HEADLAMP LEVELING MOTOR DIAGNOSIS
POSSIBLE CAUSES
1. Poor electrical connection at
motor.
2. No voltage at motor.
3. No ground at motor.
4. Defective motor.
1. No voltage at or from headlamp
leveling switch.
2. No voltage at leveling motors.
3. No ground at leveling motors.
4. Both motors defective.
1. Check for proper electrical connection at
motor.
2. Repair no voltage condition. Refer to
Wiring Diagrams.
3. Repair no ground condition. Refer to
Wiring Diagrams.
4. Replace leveling motor.
1. Repair no voltage condition. Check for
proper headlamp leveling switch operation.
2. Repair no voltage condition. Refer to
Wiring Diagrams.
3. Repair no ground condition. Refer to
Wiring Diagrams.
4. Replace both motors.
(7) If testing is still inconclusive, (Refer to 8 -
ELECTRICAL/LAMPS/LIGHTING
HEADLAMP LEVELING SWITCH - DIAGNOSIS
AND TESTING) for further tests.
REMOVAL
(1) Remove the headlamp assembly from the vehi-
cle (Refer to 8 - ELECTRICAL/LAMPS/LIGHTING -
EXTERIOR/HEADLAMP UNIT - REMOVAL).
(2) Disconnect the headlamp leveling motor wire
connector.
(3) Place the headlamp assembly on a bench with
a protective surface under the lens to prevent dam-
age.
(4) Grasp the leveling motor and rotate approxi-
mately 45 degrees to unlatch it from the lamp hous-
ing.
(5) Using an appropriate prying tool, place the
edge of tool between leveling motor gasket and head-
lamp assembly. Pry the leveling motor up and out.
NOTE: Significant force will be required to unsnap
the leveling motor pushrod from the headlamp
reflector mechanism.
CAUTION: Be certain not to damage the lamp hous-
ing sealing surface.
CORRECTION
- EXTERIOR/
LH