Diagnosis Procedure
1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Main line between HVAC and A-bag circuitPower seat for passenger side
Wiring Diagram
...
Steering switch
Description
When one of the steering wheel audio control switches is pushed, the
resistance in the steering wheel audio control switch circuit changes,
depending on which button is pushed.
Diagnosis Procedure
1.CHECK STEERING SWITCH RESISTANCE
Disconnect steering switch connector M88. ...
Multifunction switch
Removal and Installation
REMOVAL
Remove cluster lid D. Refer to IP-18, "Removal and Installation".
Remove the four multifunction switch screws (A) and the multifunction
switch (2) from cluster lid D (1).
: Metal clip
INSTALLATION
Installation is in the reverse order of ...