Code No.U1708 ETACS SWS Timeout
caution | Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal. |
TROUBLE JUDGMENT
COMMENT ON TROUBLE SYMPTOM
PROBABLE CAUSES
- Malfunction of the CAN converter-ECU
- Malfunction of the ETACS-ECU
- Damaged harness wires and connectors
DIAGNOSIS PROCEDURE
STEP 1. Connector check: D-420 ETACS-ECU connector and D-252 CAN converter-ECU connector
Q.
Is the check result normal?
STEP 2. Check the wiring harness between D-420 ETACS-ECU connector terminal No. 59 and D-252 CAN converter-ECU connector terminal No. 3.
- Check the communication lines for open circuit.
Q.
Is the check result normal?
STEP 3. Check whether the diagnosis code is reset.
(1)Replace the CAN converter-ECU. |
(2)Erase the diagnosis code. |
(3)Turn the ignition switch from "LOCK" (OFF) position to "ON" position. |
(4)Check if diagnosis code is set. |