B1141

DTC B1141 ESL authenticate time-out

CAUTION:
When replacing the ECU, always check that the communication circuit is normal.

DIAGNOSTIC FUNCTION

If the necessary data cannot be received from the electric steering lock via LIN during the certification communication with electric steering lock, OSS-ECU sets the DTC B1141, and displays the immobilizer certification system inspection warning screen to the multi information display of the combination meter.

DTC SET CONDITION

Check Conditions

- At electric steering lock certification
Judgment Criterion

- During the certification communication with electric steering lock, the necessary data cannot be received from the electric steering lock via LIN.

TROUBLESHOOTING HINTS

- LIN bus line malfunction (open circuit, short to ground, or short to power supply in LIN line)
- Damaged wiring harness or connector (open circuit or short to ground in PCO line, or open circuit in PWR line)
- Electric steering lock malfunction
- Malfunction of OSS-ECU

DIAGNOSIS

STEP 1. Check of open circuit in PWR line between electric steering lock connector and battery.

Q. Is the check result normal?

YES Go to Step 2.
NO Repair the connector(s) or wiring harness.
STEP 2. Check of short to ground and open circuit in PCO line between electric steering lock connector and OSS-ECU connector

NOTE:
Because the conformity cannot be determined even when the digital tester is used to measure the voltage of PCO line between the selector lever assembly connector and OSS-ECU connector, be sure to use the analogue tester. (With the keyless operation key placed outside of the vehicle, if the tester needle swings to the battery voltage when the engine switch is operated, it is judged normal.)

Q. Is the check result normal?

YES Go to Step 3.
NO Repair the connector(s) or wiring harness.
STEP 3. Check of short to ground, short to power supply, and open circuit in LIN line between electric steering lock connector and OSS-ECU connector

Q. Is the check result normal?

YES Go to Step 4.
NO Repair the connector(s) or wiring harness.
STEP 4. After performing the locking and unlocking operations of the electric steering lock, recheck the DTC.

Q. Is the DTC set?

YES Replace the electric steering lock and register the VIN (Refer to Programming and Relearning).
Then go to Step 5.
NO Intermittent malfunction is suspected How to Cope With Intermittent Malfunctions).
STEP 5. Check whether the DTC is reset.

Q. Is the DTC set?

YES Replace the OSS-ECU and register the VIN (Refer to Programming and Relearning).
NO The diagnosis is complete.