B2275

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

(a) Check for the DTC.

Result:





B -- GO TO DTC B2285
A -- Continue to next step.

2. CHECK WIRE HARNESS (POWER SOURCE CONTROL ECU - HV CONTROL ECU)

(a) Disconnect the K73 ECU connector.





(b) Disconnect the A54 ECU connector.

(c) Measure the resistance of the wire harness side connectors.

Standard resistance:





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

3. CHECK POWER SOURCE CONTROL ECU

(a) Measure the output voltage of the power source control ECU.





Standard voltage:





NG -- REPLACE POWER SOURCE CONTROL ECU

OK -- GO TO HYBRID CONTROL SYSTEM