B1269

THEFT DETERRENT: THEFT DETERRENT SYSTEM: B1269: Theft Deterrent ECU Communication Stop

DTC B1269 - Theft Deterrent ECU Communication Stop

DESCRIPTION

DTC B1269 is output when the communication between the theft warning ECU (theft deterrent ECU) and the main body ECU stops for more than 10 seconds.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (THEFT WARNING ECU ASSEMBLY - MAIN BODY ECU)




(a) Disconnect the D26 theft warning ECU and D33 main body ECU connectors.
(b) Measure the resistance of the wire harness side connectors.
Standard resistance:





(c) Reconnect the theft warning ECU and main body ECU connectors.
NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (BATTERY VOLTAGE)
(a) Disconnect the D26 theft warning ECU connector.




(b) Check the voltage between the wire harness side connector and body ground.
Standard voltage:





(c) Reconnect the theft warning ECU connector.
NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- REPLACE THEFT WARNING ECU ASSEMBLY