Repair Procedure

HINT:
For details about removal of each part, refer to the Technical Information System (TIS): 2003 LX 470 Repair Manual: Body (Mechanical): Instrument Panel: Removal.

1. How to Check if the Lexus Link System Is Functioning

A. Performing the check when the ignition switch is turned ON (Reference):

a. Turn the ignition switch OFF and turn it ON again. Start the engine. Three possible audio messages can be output from the vehicle depending on the status of the Lexus Link system.

i. If the customer has a current Lexus Link subscription (Active Mode), an English message will play: "The Lexus Link system is active."

ii. If the customer has an expired Lexus Link subscription (Dealer Mode), an English message will play: "The Lexus Link system is not active. To activate your Lexus Link system, press the Service button now."

iii. If the Lexus Link system is initial mode* (Factory Mode), a Japanese message (with a female voice) will play: (You will hear a Japanese message with female voice.) * Mode has not been switched yet.

b. Wait for 30 seconds. Listen for error messages.

B. Performing the diagnosis check (check before and after servicing the Lexus Link system).

a. Turn the ignition switch OFF.

b. Press and hold the "play" button or the "volume up" button. With the button pressed, turn the ignition switch ON, OFF, ON, OFF and then ON within 15 seconds.

^ If the voice message, "System OK," is confirmed, there is no problem with the Lexus Link system.

^ If an error message is heard, refer to the service manuals.

C. Turn the ignition switch to LOCK.

CAUTION
BEFORE DISCONNECTING THE NEGATIVE BATTERY TERMINAL:
Turn the ignition switch to the LOCK position and wait for approximately 30 seconds. Then, disconnect the negative (-) terminal cable from the battery and wait for 90 seconds. Then you may start working on the vehicle. Disconnecting the negative (-) terminal cable within 10 seconds after the ignition switch is turned to the LOCK position will activate the Lexus Link system using the back-up battery and cause the system to make an emergency call. Working on the vehicle within 90 seconds after the negative (-) terminal cable is disconnected may deploy the SRS using the SRS's back-up power source.

D. Disconnect the negative (-) terminal cable from the battery.

2. Remove Front Door Scuff Plate RH





Using a screwdriver, disengage the 3 clips and remove the plate as shown in the illustration.

HINT:
Tape the screwdriver tip before use.

3. Remove Cowl Side Trim RH





A. Remove the cap nut as shown in the illustration.

B. Using the taped screwdriver, disengage the claw and remove the trim as shown in the illustration.

4. Remove Glove Compartment Door





A. Remove the 2 screws and door as shown in the illustration.

B. Remove the door, then disconnect the glove compartment door damper clip.

5. Remove Rear Console Panel

A. Remove the transfer shift lever knob.

B. Remove the shift lever knob.





C. Using the taped screwdriver, disengage the 6 clips and remove the panel as shown in the illustration.

6. Remove Rear Console Panel Bracket No. 4





A. Remove the 2 bolts and bracket as shown in the illustration.

7. Route Repair Wire





A. Run the repair wire connector below the front console box to the passenger seat, as shown in the illustration.

B. Remove the bolt.





C. Run the repair wire connector from the bottom area of the instrument panel through the glove compartment door, as shown in the illustration.

NOTE:
^ The repair wire should pass between the instrument panel and instrument frame.

^ The repair wire should run above the console box's claw.





D. Run the repair wire along the existing instrument panel wires, as shown in the illustration.

HINT:
^ The illustration is the area behind the glove compartment door.

^ The repair wire should run above the blower motor wire.

E. Run the repair wires through the inside of the front console box.

HINT:
^ The repair wire should run below the floor wire.





^ The repair wire 17P connector should be placed between the 2 shift lever assembly bolts labeled "A" in the illustration.

8. Install Repair Wire





A. Remove the bolt and connector block from the Junction Block.





B. Using the taped screwdriver, remove the 4 claws and remove the connector block cover.





C. Remove the tape.





D. Using the taped screwdriver, disengage the claw on the wire harness side of the white block connector.

E. Remove the block connector from the connector block.





NOTE:
Do not remove any connector other than the connector shown in the illustration.





F. Using the taped screwdriver, remove the block connector cover as shown in the illustration.





G. Using the taped screwdriver, remove the sixth dummy terminal from the right, as shown in the illustration.

NOTE:
Do not remove any terminal other than the connector shown in the illustration.





HINT:
Insert the taped screwdriver as shown in the illustration. By pushing the screwdriver up, the terminal can be removed.

H. Using the taped screwdriver, remove the repair wire connector cover from the repair wire connector, as shown in the illustration.





I. Using the taped screwdriver, remove the terminal from the repair wire connector, as shown in the illustration.

NOTE:
Do not remove any terminal other than the connector shown in the illustration.

HINT:
Insert the taped screwdriver as shown in the illustration. By pushing the screwdriver up, the terminal can be removed.





J. Insert the repair wire terminal to the block connector, as shown in the illustration.

NOTE:
Check if the repair wire terminal is securely inserted.

K. Install the block connector cover.





L. Install the connector to the connector block.





M. Tape the wire as shown in the illustration.





N. Install the connector block cover.





0. Install the connector block with the bolt as shown in the illustration.

HINT:
The bolt should be tightened very firmly.

9. Connect Repair Wire





A. Disconnect the 17P connector as shown in the illustration.





B. Connect the floor wire 17P connector (male and disconnected in step A) to the repair wire 17P connector (female), as shown in the illustration.

C. Connect the repair wire 17P connector (male) to the floor wire 17P connector (male and disconnected in step A), as shown in the illustration.





HINT:
The repair wire 17P connector should be placed between the 2 shift lever assembly bolts labeled "A" in the illustration.

D. Raise the repair wire as much as possible and affix the repair wire to the instrument panel wire with cable ties. Attach the cable ties to the black tape parts of the repair wire.





E. Inside the console box, affix the repair wire and the floor wire together with cable ties. Attach the cable ties to white tape parts of the repair wire, as shown in the illustration.

NOTE:
When affixing the repair wire and the floor wire together:

^ The repair wire should be put under the floor wire.

^ The repair wire's part number plate should be facing the floor wire to prevent interior noise.





F. In the area behind the glove compartment door, affix cable ties on the white tape parts of the repair wire, as shown in the illustration.





G. Raise the repair wire as much as possible and affix the repair wire to the glove compartment door wire with cable ties. Attach the cable ties to the white tape parts of the repair wire.

NOTE:
Set the repair wire so that it does not fall out of the bottom area of the instrument panel.

10. Cut Cable Tie





A. Cut off the cable tie, as shown in the illustration.

11. Check Lexus Link System

A. Connect the negative (-) terminal cable to the battery.

B. Check the Lexus Link system. (See step 1, A to C in this bulletin.)

12. Check SRS Diagnosis

About 6 seconds after turning the ignition switch ON, check that the SRS warning light in the combination meter turns off.

If the SRS warning light flashes or stays ON, the connector could be disconnected or a wire in the wire harness could be broken or short circuited. Check the applicable circuit for the DTC reading (refer to Repair Manual).





13. Install Rear Console Panel Bracket No. 4

Install the bracket with the 2 bolts.

Torque: 5.5 N.m (56 kgf.cm, 49 in..lbf)

NOTE:
^ The repair wire 17P connector should be placed between the 2 shift lever assembly bolts as shown in the illustration.

^ The 17P connector should not be above the bracket.

14. Install Rear Console Panel





A. Install the panel as shown in the illustration.

B. Install the transfer shift lever knob.

C. Install the shift lever knob.

15. Install Glove Compartment Door

A. Install the glove compartment door damper clip to the door.





B. Install the door with the 2 screws as shown in the illustration.

16. Install Cowl Side Trim RH





A. Install the trim as shown in the illustration.

B. Install the cap nut as shown in the illustration.

17. Install Front Door Scuff Plate RH





Install the plate as shown in the illustration.

18. Initialize Body System

When disconnecting the negative (-) battery terminal, initialize all the systems after the terminal is reconnected. (Refer to the Technical Information System [TIS], 2003 Lexus LX 470 Repair Manual.)