Diagnosis Procedure
1.CHECK CONNECTOR
2.CHECK HARNESS FOR OPEN CIRCUIT

3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the A/C auto amp. Refer to the following.
AV branch line circuit
STRG branch line circuitC1147, C1148, C1149, C1150 USV/HSV line
Description
USV1, USV2 (CUT VALVE)
The cut valve shuts off the normal brake fluid path from the master cylinder,
when VDC/TCS is activated.
HSV1, HSV2 (SUCTION VALVE)
The suction valve supplies the brake fluid from the master cylinder to the
pump, when VDC/TCS is activated.
DTC Logic
DTC D ...
Aux image signal circuit
Description
Transmits the image signal of AUX device from auxiliary input jacks to
AV control unit.
AV control unit transmits the image signal that is input to the
display unit.
Diagnosis Procedure
1.CHECK CONTINUITY AUX IMAGE SIGNAL CIRCUIT
Turn ignition switch OFF.
Disconnect ...
ABS branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the ABS actuator and
electric unit (control unit) for damage, bend
and loose connection (unit side and connector side).
...