Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 516
3. Cable - The cable is used to transfer the high volt-
age
produced
by
the
ballast
module
to
the
lamp/igniter.
DIAGNOSIS AND TESTING
HIGH INTENSITY DISCHARGE HEADLAMPS
The High Intensity Discharge (HID) headlamps are supplied B+ voltage and ground, the same as normal halogen
low beam lamps. The low beam system is different from there forward. The ballast module is mounted to the bottom
of the headlamp unit. The ballast module has internal circuit protection to prevent module damage in case of an
open or shorted circuit. The module has overcharge and undercharge circuit protection. If either is sensed, the mod-
ule will not illuminate the headlamps for that key cycle or until the fault is corrected. Recycle the ignition and head-
lamp switch if both headlamps do not illuminate. Before determining the headlamp assembly is faulty, check the
connector at the headlamp and check if there is voltage coming from the IPM pin providing the power to the respec-
tive headlamp. If the module senses a short or open circuit condition, it will not operate the lamp/igniter.
WARNING: The headlamp unit must be removed to perform these tests (Refer to 8 - ELECTRICAL/LAMPS/
LIGHTING - EXTERIOR/HEADLAMP UNIT - REMOVAL). Failure to do so could result in personal injury or
death.
1. Inspect lamp for a burned out lamp. If lamp is burned out it will appear black or smoky, similar to a normal
halogen bulb. If lamp looks OK, go to Step 2.
2. Check for B+ battery voltage at the connector going into the ballast module. Refer to Wiring Diagrams for con-
nector location. If battery voltage and a good ground are present, go to Step 3. If B+ voltage and a good ground
are not present, refer to Wiring Diagrams for circuit and connector locations to find short or open circuit.
3. Plug in a known good ballast module and check for lamp operation. If lamp lights, replace ballast module. If lamp
still fails to light, replace igniter assembly.
8L - 94
LAMPS/LIGHTING - EXTERIOR - SERVICE INFORMATION
LX
REMOVAL
HALOGEN HEADLAMP
NOTE: If replacing the left low or high beam head-
lamp, the air box has to be removed first (Refer to
9 - ENGINE/AIR INTAKE SYSTEM - REMOVAL).
1. Disconnect and isolate the battery negative cable.
2. Disconnect the lamp electrical connector.
3. Twist lamp (1 and 2) out of headlamp housing.
HIGH INTENSITY DISCHARGE (HID) HEADLAMPS (IF EQUIPPED) - LOW BEAM
HEADLAMP
NOTE: If replacing the left front low beam HID
headlamp, the air box has to be removed first
(Refer to 9 - ENGINE/AIR INTAKE SYSTEM -
REMOVAL).
1. Disconnect and isolate the battery negative cable.
2. Remove the rubber boot (1) protecting the lamp/ig-
niter from the elements.
LX
LAMPS/LIGHTING - EXTERIOR - SERVICE INFORMATION
8L - 95
3. Disconnect the electrical cable connector to the
lamp/igniter by pulling straight down.
4. Release the retaining wire clip on the back of the
lamp/igniter.
5. Grab the igniter by pulling rearward and rocking it
slightly as you pull.
6. Pull the igniter straight out of the headlamp unit.
The lamp is integral to the igniter and cannot be
separated.
BALLAST MODULE
1. Remove the headlamp unit (Refer to 8 - ELECTRI-
CAL/LAMPS/LIGHTING - EXTERIOR/HEADLAMP
UNIT - REMOVAL).
8L - 96
LAMPS/LIGHTING - EXTERIOR - SERVICE INFORMATION
LX
2. From the underside of the headlamp unit, remove
the six retaining screws (1).
3. Pull the ballast module out of headlamp unit.
4. Disconnect the two electrical connectors (1 and 2).
•
One of the connectors (1) will be a standard
push tab to release connector.
•
The second connector (2) has a lever that must
be rotated away or down from the wire of the
cable and connector.
5. Separate ballast module from headlamp unit.
CABLE
1. Remove the headlamp unit (Refer to 8 - ELECTRI-
CAL/LAMPS/LIGHTING - EXTERIOR/HEADLAMP
UNIT - REMOVAL).
LX
LAMPS/LIGHTING - EXTERIOR - SERVICE INFORMATION
8L - 97
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