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.
M&A branch line circuit
STRG branch line circuitStandardized relay
Description
NORMAL OPEN, NORMAL CLOSED AND MIXED TYPE RELAYS
Relays can mainly be divided into three types: normal open, normal closed and
mixed type relays
TYPE OF STANDARDIZED RELAYS
1M * 1 Make
2M * 2 Make
1T * 1 Transfer
1M*1B * 1 Make 1 Break
...
Precaution
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and
"SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT
PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk
or severity of injury to the driver and front ...
Audio system
Symptom Table
AUDIO SYSTEM
RELATED TO HANDS-FREE PHONE
Before performing diagnosis, confirm that the cellular phone being
used by the customer is compatible with
the vehicle.
It is possible that a malfunction is occurring due to a version
change of the phone even tho ...