Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV "Wiring Diagram".
1.CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE
1. Turn ignition switch OFF.
2. Disconnect combination switch connector M88.
3. Check resistance between the terminals of combination switch connector
M88.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace steering switches. Refer to AV "Removal and Installation".
2.CHECK COMBINATION SWITCH
Check continuity between combination switch connectors M88 and M30.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace spiral cable. Refer to SR "Removal and Installation".
3.CHECK HARNESS BETWEEN COMBINATION SWITCH AND AV CONTROL UNIT
1. Disconnect AV control unit connector M30.
2. Check continuity between combination switch connector M30 and AV control
unit connector M70.
3. Check continuity between combination switch connector M30 and ground.
Is the inspection result normal?
YES >> Replace AV control unit. Refer to AV "Removal and Installation".
NO >> Repair or replace harness or connectors.
Microphone signal circuitDiagnosis Procedure Regarding Wiring Diagram information, refer to AV "Wiring Diagram". 1.CHECK MICROPHONE SIGNAL CIRCUIT CONTINUITY 1. Turn ignition switch OFF. 2. Disconnect AV control ...

Diagnosis Procedure Regarding Wiring Diagram information, refer to AV "Wiring Diagram". 1.CHECK USB INTERFACE HARNESS CONTINUITY 1. Turn ignition switch OFF. 2. Disconnect AV control uni ...
Remote keyless entry system (if so equipped)
WARNING
Radio waves could adversely affect
electric medical equipment. Those who
use a pacemaker should contact the
electric medical equipment manufacturer
for the possible influences before
use.
The remote keyless entry key fob transmits
radio waves when the buttons are
pressed. ...
P0734 4GR Incorrect ratio
Description
This malfunction is detected when the A/T does not shift into 4GR position as
instructed by TCM. This is not
only caused by electrical malfunction (circuits open or shorted) but by
mechanical malfunction such as control
valve sticking, improper solenoid valve operation, etc.
DTC ...