B2275

2GR-FSE STARTING: SMART ACCESS SYSTEM WITH PUSH-BUTTON START: B2275: STSW Monitor Malfunction

DTC B2275 - STSW Monitor Malfunction

DESCRIPTION

This DTC is output when the ST output circuits inside the power source control ECU are open or short.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK WIRE HARNESS (POWER SOURCE CONTROL ECU - ECM)




(a) Disconnect the K73 ECU connector.
(b) Disconnect the A6 ECM connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.

2. CHECK AND REPLACE POWER SOURCE CONTROL ECU
(a) Temporarily replace the power source control ECU with a new or normally functioning one.
(b) Check that the engine starts normally.
OK:
Engine starts normally.
NG -- GO TO SFI SYSTEM
OK -- REPLACE POWER SOURCE CONTROL ECU