Work Flow
OVERALL SEQUENCE

DETAILED FLOW\
1.CHECK SYMPTOM
Check the malfunction symptoms by performing the following items.
2.SELF-DIAGNOSIS (CONSULT)
3.CHECK SELF-DIAGNOSIS RESULTS (CONSULT)
NOTE: Start with the diagnosis for the CAN communication system if "CAN COMM CIRCUIT [U1000] or CONTROL UNIT (CAN) [U1010]" is displayed.
4.PERFORM DIAGNOSIS BY SYMPTOM
Perform the relevant diagnosis referring to the diagnosis chart by symptom.
5.REPAIR OR REPLACE MALFUNCTIONING PARTS
Repair or replace the identified malfunctioning parts.
NOTE: Erase the stored self-diagnosis results after repairing or replacing the relevant components if any DTC No. has been indicated in the self-diagnosis results.
6.CHECK AFTER REPAIR
7.FINAL CHECK
Perform the operation check to confirm that the malfunction symptom is solved or that any other symptoms are present.
Basic inspection
Inspection and adjustmentWiring diagram
MONOCHROME DISPLAY
Wiring Diagram - With BOSE Audio System
...
B2578, B2579 in-vehicle sensor
Description
In-vehicle Sensor
The in-vehicle sensor (1) is located on instrument lower cover
(LH).
It converts variations in compartment air temperature drawn from
the aspirator into a resistance value. It is then input into the A/C
auto amp.
In-vehicle Sensor Circuit
Aspira ...
Audio system
Symptom Table
AUDIO SYSTEM
Symptoms
Check items
Probable malfunction location
The disk cannot be removed.
Audio unit
Malfunction in audio unit.
No sound comes out or the level of the sound is low.
No sound from all speakers.
Speaker circuit short ...