Canada - Audio - Initialization of Audio Remote Controls
BulletinTSB2587
Issue Date
June 23, 2008
Title
Audio Steering Wheel Control Abnormal Operation
Component
BODY ELECTRICAL
Models
'03 - '08 SC 430 & '01-'06 LS 430
NOTE
This TSB applies to 2004 - 2006 model year LS 430 and 2004 - 2008 model year SC 430 with navigation system ONLY.
INTRODUCTION:
Some customers may experience a condition with their steering wheel audio controls not working properly. This service bulletin provides the proper procedures for initializing the steering wheel mounted audio controls.
When performing any service that requires disconnecting the battery or whenever a Lexus Accessory Dual Mode Phone System is removed from the vehicle, the steering wheel mounted audio controls may need to be re-initialized to restore normal operation.
APPLICABLE VEHICLES:
WARRANTY INFORMATION:
COMPONENTS:
INITIALIZATION PROCEDURE:
For vehicles previously equipped with Lexus Accessory Dual Mode phones, make sure ALL phone components have been COMPLETELY removed from the vehicle.
NOTE
Not removing the phone components can prohibit the initialization procedure.
1. Insert the key in the ignition switch and turn it to the ACC position. Within 30 seconds, perform steps 2 and 3.
2. Press and hold the audio MODE switch for more than 10 seconds.
3. After releasing the MODE switch, press the channel up switch 3 times and then the channel down switch 3 times within 5 seconds.
NOTE
Make sure you are pressing the channel buttons and NOT the volume buttons.
4. Turn the ignition switch to ON then to the OFF position.
5. Confirm proper operation of the steering wheel controls.
If the initialization procedure above does NOT restore audio operation, refer to the applicable model and model year Repair Manual, DTC B1285, "Steering Pad Switch Communication", for supporting information on the circuit.
NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.