Canada - Cell Phone - Handsfree Call Noise

Bulletin
2435

Issue Date
June 13, 2007

Title
NOISE DURING HANDSFREE CALL

Component
BODY ELECTRICAL

Models
'07 -'08 RX 350/400h

INTRODUCTION:

Some customers may experience distortion on the receiving end of the call when using the "Handsfree" function. An improved microphone has been developed to correct this condition. Use the following repair procedure to remove and replace the microphone.

APPLICABLE VEHICLES:
- 2007 - 2008 model year RX 350/400h vehicles produced BEFORE the Production Change Effective VINs shown below.






PRODUCTION CHANGE INFORMATION:






PARTS INFORMATION:






WARRANTY INFORMATION:

REPAIR PROCEDURE:
1. Record radio presets.
2. Disconnect the cable from the negative (-) battery terminal.
3. Remove the map light assembly.

Refer to the Repair Manual within E-TAS / TIS library:
- Division: Lexus
- Model: RX 350
- Year: 2007
- Service Category: Vehicle Interior
- Section: Interior Panels/Trim
- Keyword: Interior: Roof Headlining: Removal






4. Remove the microphone amplifier.
A. Disconnect the connector.
B. Remove the screw and microphone bracket.
C. Remove the microphone amplifier.






5. Install the NEW microphone amplifier.
A. Install the microphone amplifier.
B. Install the microphone bracket with the screw.
C. Connect the connector.

6. Install the map light assembly.

Refer to the Repair Manual within ETAS / TIS library:
- Division: Lexus
- Model: RX 350
- Year: 2007
- Service Category: Vehicle Interior
- Section: Interior Panels/Trim
- Keyword: Interior: Roof Headlining: Removal

7. Connect the cable to the negative (-) battery terminal.
8. Re-initialize any affected power systems.
9. Set radio presets.

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.