CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the steering wheel heater control assembly removal/installation are shown below.
| Replacement Part or Procedure | Necessary Procedure | Effect/Inoperative when not Performed | Link |
|---|---|---|---|
| Disconnect cable from negative battery terminal | Memorize steering angle neutral point | LKA/LDA system | |
| Pre-collision system | |||
| Parking assist monitor system | |||
| Steering sensor zero point calibration | Variable gear ratio steering system | ||
| Parts between the steering wheel and tires have been removed/installed, replaced or adjusted | Perform Actuator Angle Neutral Point Calibration and Initialization |
|
Tech Tips
Use the same procedure for RHD and LHD vehicles.
The procedure listed below is for LHD vehicles.
PROCEDURE
PRECAUTION
Note
After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
REMOVE STEERING WHEEL ASSEMBLY
DISCONNECT LOWER STEERING WHEEL BOSS COVER
Remove the 2 screws, detach the 2 claws and lift up the lower steering wheel boss cover by 20 mm (0.787 in.).
Note
| *a | 20 mm (0.787 in.) or less |
Do not lift the lower steering wheel boss cover more than 20 mm (0.787 in.).
| *1 | Heater Thermistor |
Do not detach the 2 bottom claws.
Work carefully so that the heater thermistor does not come off the lower steering wheel boss cover .
If the heater thermistor comes off the lower steering wheel boss cover, replace the steering wheel assembly.
REMOVE STEERING WHEEL HEATER CONTROL ASSEMBLY
Disconnect the connector.
Disengage the guide to remove the wire harness from the lower steering wheel boss cover.
| *a | Using part A |
Using part A as a fulcrum, move the lower steering wheel boss cover so the screws can be removed, remove the 2 screws and remove the steering wheel heater controller assembly from the lower steering wheel boss cover.
Note
Work carefully so that the heater thermistor does not come off the lower steering wheel boss cover.
If the heater thermistor comes off the lower steering wheel boss cover, replace the steering wheel assembly.