Lighting - Headlight Flickering or Warning ON In Cluster
94 Headlight Flickering or Warning On in Cluster (All Xenon Head Lights)
94 13 10
2029194/4
March 4, 2013. Supersedes Technical DIAGNOSIS AND REPAIR Group 94 number 13-03 dated February 1, 2013 for reasons listed.
Vehicle Information
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Condition
Only vehicles with Xenon head lights can be affected by this condition.
The customer complains the high beams do not function on one side or one of the Low beams flickers intermittently. In addition to this, an "Adaptive
Headlight Defective" warning can be present in the cluster if the vehicle has the Prestige trim level.
One of the following DTCs are set in the vehicle electrical system control module, J519 (09), or in the headlamp range control module, J431 (55),
depending on the trim level of the vehicle. Vehicles with the Premium Plus option package can have the DTC set in the J519 (09) module. Vehicles
with the Prestige option package can have the DTC set in the J431 (55) module.
Vehicles with Premium Plus - Xenon Headlights without Adaptive Light (stored in vehicle electrical system control module, J519 (09))
^ DTC 02747 (Solenoid switch for Bixenon (shutter) right - Open Circuit)
^ DTC 02748 (Solenoid switch for Bixenon (shutter) Left - Open Circuit)
Vehicles with Prestige - Xenon Headlights with Adaptive Light (stored in headlamp range control module, J431 (55))
^ DTC 01534 (Left Headlight Beam Adjusting Motor -V48-)
^ DTC 01535 (Right Headlight Beam Adjusting Motor -V49-)
^ DTC 02988 (Left/right handing traffic change-over active)
^ DTC 02630 (Voltage supply of Right Swivel Module Position Sensor)
^ DTC 02631 (Voltage supply of Left Swivel Module Position Sensor)
Technical Background
One or more of the connectors inside the headlamp housing are disconnected fully or partially from the factory.
Production Solution
Not applicable.
Service
1. Verify which side is affected based on the DTC or customer complaint and remove the affected headlamp per the instructions listed in the
ElsaWeb Repair Manual: Repair Manual > Electrical System > 94 Exterior Lights, Switches > Removal Installation > HID Headlamp, From
MY 10
2. Remove the covers from the back of the headlamp housing.
3. Physically check all the connectors inside the headlamp housing for proper seating and visually inspect the Locks to ensure they are fully
engaged (Figure 1).
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Connector "A" (Figure 2, A) can be seated but not fully engaged. When pushing on this connector the projector will swivel, so it is important to hold
the projector housing when applying pressure to the connector.
Connector "B" (Figure 3, B) can be fully Locked into place but it can be rotated 5-10 degrees off center. Therefore, it is important to ensure that the
harness connector is seated parallel to the connector housing on the headlamp.
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Connector "C" (Figure 4, C) is located behind the motor mechanism, which rests be low the projector lens. This is a very small two-pin connector.
Use caution when wiggling this connector because if it becomes fully disconnected, it is almost impossible to reconnect without using special tools.
Place your finger, or a set of small bent pliers, on this connector and pull towards yourself to fully seat the connector.
4. Ensure all the connectors are fully seated and locked. If a loose connector is found, skip step 5 and move to step 6.
5. If no loose connector is found, and the issue still persists, the issue is outside the scope of this TSB and the remaining steps can be skipped. A
swap of headlamp components between left and right is the next logical step to narrow down the failed part of the headlamp.
6. Reassemble the headlamp and install it back in to the vehicle.
7. Clear the DTC(s) and retest with low beams activated, high beams activated, and all turn signals activated.
8. If no DTCs return, test the head Lamp functionality in the garage or parking lot. In addition, perform a short road test and repeat the actuation of
all head lamps functions while at a speed. To test the adaptive Light function (if equipped), the vehicle will need to be driven around a corner at
a speed greater than 6mph.
Note:
It may be difficult to use the high beams while in traffic; therefore, please use caution and do not create an unsafe condition for you and your
fellow drivers.
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Warranty
All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures Manual Claims are subject to
review or audit by Audi Warranty.
Additional Information
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service
manuals for the latest information.
