Precautions for Trouble Diagnosis
Caution:
Follow the instructions listed below. Failure to do this may cause damage to parts:
Precautions for Harness Repair
Note:
A fray of twisted lines must be within 110 mm (4.33 In).

Note:
Bypass connection may cause can communication error. The spliced wire becomes separated and the characteristics of twisted line are lost.

How to use this manual
System descriptionAV 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 av control unit for damage,
bend and loose connection (unit
side and connector side).
Is the inspection result normal ...
Symptom diagnosis
HEATER AND AIR CONDITIONING SYSTEM
CONTROL SYMPTOMS
Diagnosis Chart By Symptom
Note:
Perform the self-diagnoses with consult before performing the symptom
diagnosis. If dtc is detected, perform
the corresponding diagnosis.
INSUFFICIENT COOLING
Description
Symptom
Insufficient ...
Both doors mirror defogger don’t operate but rear window defogger operates
Diagnosis procedure
Regarding Wiring Diagram information, refer to DEF-20, "Wiring Diagram".
1. Check door mirror defogger fuse
Check if the following fuse in fuse block (J/B) is blown.
Is the inspection result normal?
Yes >> go to 2.
No >> replace the blown fuse af ...