REMOVAL AND INSTALLATION <VEHICLES WITH HEATED STEERING WHEEL>


caution
  • Before removing the steering wheel and driver’s air bag module assembly, refer to GROUP 52B - Service Precautions and Driver’s Air Bag Module and Clock Spring.
  • After the installation, perform a calibration for the ASC-ECU to learn the steering wheel sensor neutral point.
Pre-removal OperationSteering Wheel Straight-ahead Position Check
 Post-installation Operation
  • Steering Wheel Straight-ahead Position Check
  • Steering Wheel Shake Check




Removal steps

>>C<<
 1.
 Driver’s air bag module


2.
 Steering wheel nut
<<A>>
 >>C<<
 3.
 Steering wheel assembly
<<B>>
4.
 Steering wheel bezel (LH) <vehicles without steering wheel remote control switch>
<<B>>
5.
 Steering wheel remote control switch (LH) <vehicles with steering wheel remote control switch>
<<B>>
6.
 Steering wheel bezel (RH) <vehicles without steering wheel remote control switch>
<<B>>
7.
 Steering wheel remote control switch (RH) <vehicles with steering wheel remote control switch>

>>B<<
 ··
 Steering wheel remote control switch (LH/RH) wiring harness

>>B<<
 ··
 Heated steering wheel ECU wiring harness
<<C>>
8.
 Heated steering wheel ECU
<<D>>
 >>A<<
 ··
 Heater element connector connection


9.
 Steering wheel

REMOVAL SERVICE POINTS

<<A>> STEERING WHEEL ASSEMBLY REMOVAL
1.Position the steering wheel in a straight ahead position.

2.
caution Use the special tool to remove the steering wheel since the steering column collision adsorbing mechanism may be damaged.
Use special tool steering wheel puller (MB990803) to remove the steering wheel.

<<B>> STEERING WHEEL BEZEL (LH/RH)/STEERING WHEEL REMOTE CONTROL SWITCH (LH/RH)
caution To remove the steering wheel bezel or the steering wheel remote control switch, remove the left or right side only.If fail to observe this, the steering lower cover will fall down, thus damaging it.

<<C>> HEATED STEERING WHEEL ECU REMOVAL
caution Remove only the left side of the steering wheel bezel or the steering wheel remote control switch.If fail to observe this, the steering lower cover will fall down, thus damaging it.
Loosen the tapping screws behind the steering wheel, and then slide the steering wheel lower cover away from the steering wheel to allow sufficient clearance to remove the ECU mounting screws.

<<D>> HEATER ELEMENT CONNECTOR CONNECTION REMOVAL
caution
  • To remove the heated steering wheel ECU, disconnect the heater element connector carefully to avoid damage to the heater element.
  • Do not remove the lower cover completely as the heater element is adhered to the lower cover by using an adheseive tape.Also be careful not to peel off the adhesive tape.

INSTALLATION SERVICE POINT

>>A<< HEATER ELEMENT CONNECTOR CONNECTION INSTALLATION
caution To installing the heated steering wheel ECU, reconnect the heater element connector carefully to avoid damage to the heater element.

>>B<< HEATED STEERING WHEEL ECU WIRING HARNESS AND STEERING WHEEL REMOTE CONTROL SWITCH (LH/RH) WIRING HARNESS INSTALLATION


Route the heated steering wheel ECU wiring harness and the steering remote control switch (LH/RH) wiring harness as shown.

>>C<< STEERING WHEEL ASSEMBLY/DRIVER’S AIR BAG MODULE INSTALLATION
1.
caution When installing the steering wheel assembly and air bag module, do not trap the clock spring harness.
After centring the clock spring.

2.After checking that the clock spring centre alignment is already performed, install the steering wheel assembly so that its boss part is aligned with the rib of the clock spring slowly.
3.Install the driver’s airbag module.
4.After the installation, check that there is no abnormality when the steering wheel is fully turned to left and right.