DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
OVERALL SEQUENCE

DETAILED FLOW
1.INTERVIEW FOR MALFUNCTION
Find out what the customer's concerns are.
2.SYMPTOM CHECK
Verify the symptom from the customer's information.
3.BASIC INSPECTION
Check the operation of each part. Check if any concerns occur other than those mentioned in the customer interview.
4.SELF-DIAGNOSIS WITH CONSULT
Perform the self diagnosis with CONSULT. Check if any DTC is detected.
5.TROUBLE DIAGNOSIS BY DTC
Perform the trouble diagnosis for the detected DTC. Specify the malfunctioning part.
6.FAIL-SAFE ACTIVATION CHECK
Determine if the customer's concern is related to fail-safe activation.
7.SYSTEM DIAGNOSIS
Perform the system diagnosis for the system in which the fail-safe activates. Specify the malfunctioning part.
8.SYMPTOM DIAGNOSIS
Perform the symptom diagnosis. Specify the malfunctioning part.
9.MALFUNCTION PART REPAIR
Repair or replace the malfunctioning part.
10.REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT)
Perform the self diagnosis with CONSULT. Verify that no DTCs are detected. Erase all DTCs which were detected prior to the repair. Perform the self diagnosis with CONSULT again. Verify that DTC is not detected again.
11.REPAIR CHECK (OPERATION CHECK)
Check the operation of each part.
Service data and specifications (SDS)Main line between HVAC and A-bag circuit
Diagnosis Procedure
1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors.
A/C auto amp.
Harness connectors M1 and E30
Check the continuity between the A/C au ...
Display unit
Reference Value
TERMINAL LAYOUT
PHYSICAL VALUES
BOSE SPEAKER AMP
Reference Value
TERMINAL LAYOUT
PHYSICAL VALUES
...
U1010 control unit (CAN)
Description
Refer to LAN-24, "CAN Communication Signal Chart".
DTC Logic
DTC DETECTION LOGIC
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
U1010
CONTROL UNIT (CAN
When detecting error during the initial diagnosis of CAN controller
of dri ...