Diagnosis Procedure
1.
CHECK DTC
With M.U.T.-III SE
Ignition switch ON.
Select “Self Diagnostic Result” mode of “HVAC” using M.U.T.-III SE.
Check following DTC.
DTC
Items
(M.U.T.-III SE screen terms)
Reference
B24B4-02
FRONT A/C CONTROL COMM
DTC Description
U1CB1-02
Rear A/C control communication
DTC Description
Is DTC detected?
Perform DTC diagnosis procedure that is detecting.
Replace A/C amp. Refer to
A/C AMP. REMOVAL AND INSTALLATION
.