Description
Provides cooling and heat for the seatback.
Component Function Check
1.CHECK SEATBACK THERMAL ELECTRIC DEVICE FUNCTION
Diagnosis Procedure
Regarding Wiring Diagram information, refer to SE-44, "Wiring Diagram".
1.CHECK SEATBACK THERMAL ELECTRIC DEVICE
Perform thermal electric device component inspection for the seatback. Refer to SE-19, "Component Inspection (Thermal Electric Device)".
2.CHECK SEATBACK THERMAL ELECTRIC DEVICE CIRCUITS


4. Check continuity between seatback thermal electric device connector B218 (A) terminals 1, 2 and ground.

3.CHECK SEATBACK THERMAL ELECTRIC DEVICE SENSOR CIRCUITS


3. Check continuity between seatback thermal electric device connector B218 (A) terminals 3, 4 and ground.

Component Inspection (Thermal Electric Device)
1.CHECK THERMAL ELECTRIC DEVICE
NOTE:

2.CHECK THERMAL ELECTRIC DEVICE SENSOR
Measure the resistance of the thermal electric device sensor between terminals 3 and 4.

Seat cushion thermal electric device
Climate controlled seat switchPreparation
Special Service Tool
The actual shapes of the tools may differ from those illustrated here.
Commercial Service Tool
...
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 ...
AMP on signal circuit
Description
When the audio system is turned on, a voltage signal is supplied from the AV
control unit to the BOSE speaker
amp. When this signal is received, the BOSE speaker amp. will turn on.
Diagnosis Procedure
1.CHECK AMP ON SIGNAL (BOSE SPEAKER AMP)
Turn audio system ON.
Check v ...