Diagnosis Procedure
1.CONNECTOR INSPECTION
2.CHECK HARNESS CONTINUITY (SHORT CIRCUIT)
Check the continuity between the data link connector terminals.

3.CHECK HARNESS CONTINUITY (SHORT CIRCUIT)
Check the continuity between the data link connector and the ground.

4.CHECK ECM AND IPDM E/R TERMINATION CIRCUIT


3. Check the resistance between the IPDM E/R terminals.

5.CHECK SYMPTOM
Connect all the connectors. Check if the symptoms described in the "Symptom (Results from interview with customer)" are reproduced.
Inspection result Reproduced>>GO TO 6.
Non-reproduced>>Start the diagnosis again. Follow the trouble diagnosis procedure when past error is detected.
6.CHECK UNIT REPRODUCTION
Perform the reproduction test as per the following procedure for each unit.
NOTE: ECM and IPDM E/R have a termination circuit. Check other units first.
NOTE: Although unit-related error symptoms occur, do not confuse them with other symptoms.
Inspection result Reproduced>>Connect the connector. Check other units as per the above procedure.
Non-reproduced>>Replace the unit whose connector was disconnected.
TCM branch line circuit
DTC/circuit diagnosisFront door speaker
Description
The AV control unit sends audio signals to the BOSE speaker amp. The BOSE
speaker amp. amplifies the
audio signals before sending them to the front door speakers using the audio
signal circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the AV control unit, BOSE speaker amp. ...
Antenna AMP
Removal and Installation
REMOVAL
Remove the rear pillar finisher RH. Refer to INT-23, "Exploded
View".
Detach the antenna amp. harness clip (A).
Disconnect the harness connectors (B) from the antenna amp.
(1).
Remove the antenna amp. screw (C) and the antenna amp. (1).
INSTALLAT ...
U1255 satellite radio tuner
Descriptio
Part name
Description
SATELLITE RADIO TUNER
Inputs the satellite radio signal from satellite radio antenna
and outputs the sound signal to the AV control unit.
It is controlled with the AV control unit and serial
communicatio ...