Diagnosis code
No.01 Trouble in SWS communication line system or ETACS-ECU
|
|
| caution |
If diagnosis code No.01 is
set in the ETACS-ECU, diagnose the CAN bus lines.
|
|
|
|
The ETACS-ECU communicates with the column
switch, the front-ECU, the sunroof motor assembly
and the power window main switch through the SWS communication line. If
there is any trouble
in the ETACS-ECU or the SWS communication lines , diagnosis code No.01 will
be set.
|
|
|
COMMENT ON TROUBLE SYMPTOM
|
|
|
The wiring harness wire or connectors may have
loose, corroded, or damage terminals, or
terminals pushed back in the connector, or the ETACS-ECU may be
defective.
|
|
|
- Malfunction of the ETACS-ECU
- Damaged harness wires and connectors
|
|
|
Step 1. M.U.T.-III CAN bus diagnostics
|
|
|
Use the M.U.T.-III to diagnose the CAN bus
lines.
|
|
|
Q.
Is the check result normal?
|
|
|
 Go to Step 2.
|
|
|
|
|
|
 Repair
the CAN bus line (Refer to GROUP 54F - Troubleshooting  ).
|
|
|
|
|
|
Step 2. Check whether the diagnosis code is reset.
|
|
|
Check again if the diagnosis code is
set.
|
|
|
(1)Ignition switch: LOCK (OFF) position to ON
|
|
|
(2)Erase the diagnosis code.
|
|
|
(3)On completion, check that the diagnosis code is not
reset.
|
|
|
Q.
Is the check result normal?
|
|
|
If a
trouble is solved, it is determined that there is an intermittent
malfunction
such as poor engaged connector(s) or open circuit (Refer to GROUP 00
- How to use troubleshooting/Inspection
Service Points ).
|
|
|
|
|
|
Replace the ETACS-ECU.
|
|
|
|
