KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC B2204 ABNORMAL STEERING LOCK POWER SUPPLY CIRCUIT (ABNORMALITY ON THE POWER SUPPLY ECM SIDE)

DTC DETECTING CONDITION:

Faulty steering lock motor drive circuit

TROUBLE SYMPTOM:

• The steering lock cannot be released.

• Engine will not start.

WIRING DIAGRAM:

STEP	CHECK	YES	NO
1.CHECK STEERING LOCK CM. Using a tester, measure the voltage of the steering lock CM when the ignition switch is turned from OFF to ON. Connector & terminal (B424) No. 3 (+) — No. 1 (−):	Did it change to less than 1 V, and 10 — 12 V?
2.CHECK HARNESS. 1) Disconnect the power supply CM connector and the steering lock CM connector. 2) Using a tester, measure the resistance between the power supply CM and steering lock CM. Connector & terminal (B424) No. 3 — (B420) No. 32:	Is the resistance less than 10 Ω?		Repair or replace the open circuit of harness.
3.CHECK HARNESS. Using a tester, measure the resistance between the steering lock CM and chassis ground. Connector & terminal (B424) No. 3 — Chassis ground:	Is the resistance 10 MΩ or more?		Repair or replace the open circuit of harness.
4.CHECK DTC. 1) Using the Subaru Select Monitor, perform clear memory for the power CM. 2) Read the DTC of the power CM.	Is a DTC output?	Replace the steering lock CM.	System is normal. It is possible that temporary poor contact occurs.