B2281

2GR-FSE STARTING: SMART ACCESS SYSTEM WITH PUSH-BUTTON START: B2281: "P" Signal Malfunction

DTC B2281 - "P" Signal Malfunction

DESCRIPTION

The power source control ECU and the shift lock control ECU are connected by a cable and the BEAN. If the cable information and BEAN information are inconsistent, this DTC will be output.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

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




(a) Disconnect the K73 ECU connector.
(b) Disconnect the K39 ECU 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 SHIFT LOCK SYSTEM
OK -- REPLACE POWER SOURCE CONTROL ECU