Diagnosis and repair workflow
Trouble diagnosis flow chart
Trouble diagnosis procedure
Interview with customer
Interview with the customer is important to detect the root cause of can communication system errors and to understand vehicle condition and symptoms for proper trouble diagnosis.
Points in interview
Notes for checking error symptoms:
Example: Circuit between ECM and the combination meter is judged normal if the customer indicates tachometer functions normally.
Inspection of vehicle condition
Check whether the symptom is reproduced or not.
Note:
Do not turn the ignition switch off or disconnect the battery cable while reproducing the error. The error may temporarily correct itself, making it difficult to determine the root cause.
Check of can system type (how to use can system type specification chart)
Determine can system type based on vehicle equipment.
Note:
CAN System Type Specification Chart (Style A)
Note:
Can system type is easily checked with the vehicle equipment identification information shown in the chart.
Can system type specification chart (style b)
Note:
Can system type is easily checked with the vehicle equipment identification information shown in the chart.
Create interview sheet
Fill out the symptom described by the customer, vehicle condition, and can system type on the interview sheet.
Interview sheet (example)
Detect the root cause
Can diagnosis function of consult detects the root cause.
Power supply and ground circuit
Diagnosis procedure
Regarding wiring diagram information, refer to bcs-51, "wiring diagram".
1.Check fuses and fusible link
Check that the following fuses and fusible link are not blown.
Is the fuse blown?
YES >> Replace the blown fuse or fusible link after repairing the aff ...
P0327, P0328 KS
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0327
KNOCK SEN/CIRC-B1
(Knock sensor 1 circuit
low bank 1)
An excessively low voltage from the knock sensor
is sent to ECM.
...
C1113, C1145, C1146 Yaw rate/side/decel G Sensor
DTC Logic
DTC DETECTION LOGIC
DTC
Display Item
Malfunction detected condition
Possible causes
C1113
G SENSOR
When a malfunction is detected in longitunal G sensor
signal.
ABS actuator and electric unit (control unit)
C1145
YAW RATE ...