Special Service Tools

Preparation
Clip listPower supply and ground circuit
A/C AUTO AMP.
A/C AUTO AMP.: Description
COMPONENT DESCRIPTION
A/C Auto Amp. (Air Conditioner Automatic Amplifier)
The A/C auto amp. (1) has a built-in microcomputer that processes
information sent from various sensors needed for air conditioner
operation. The air mix door motor(s), the mode d ...
U1216 AV control unit
Description
Replace the AV control unit if this DTC is displayed.
Part name
Description
AV CONTROL UNIT
It is the master unit of the MULTI AV system and it is connected
to each control unit by means of communication. It operates each
syste ...
Diagnosis and repair workflow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW\
1.CHECK SYMPTOM
Check the malfunction symptoms by performing the following items.
Interview the customer to obtain the malfunction information
(conditions and environment when the malfunction occurred).
Check the symptom.
2.SELF-DIAGNOSIS ( ...