Check Keyless Entry Control Module

Step	Check	Yes	No
1 CHECK BODY INTEGRATED UNIT . Read the DTC using Subaru Select Monitor. NOTE: For detailed operation procedures, refer to "Application help".	Is DTC B1500 "KEYLESS UART COM. MALFUNCTION" displayed?	Go to step 2 .	Keyless entry control module is normal.
2 CHECK POWER SUPPLY . Disconnect the keyless entry control module connector. Measure the voltage between keyless entry control module connector and chassis ground. Connector & terminal Model without tire pressure monitoring system (R80) No. 4 (+) - Chassis ground (-): Model with tire pressure monitoring system (R221) No. 6 (+) - Chassis ground (-): (R221) No. 4 (+) - Chassis ground (-):	Is the voltage 10 V or more?	Go to step 3 .	Check the harness for open or short circuits between the keyless entry control module and the fuse.
3 CHECK GROUND CIRCUIT . Measure the resistance between keyless entry control module connector and chassis ground. Connector & terminal Model without tire pressure monitoring system (R80) No. 7 - Chassis ground: Model with tire pressure monitoring system (R221) No. 5 - Chassis ground:	Is the resistance less than 10 Ω?	Go to step 4 .	Repair or replace the harness.
4 CHECK KEYLESS ENTRY CONTROL MODULE CIRCUIT . Disconnect the body integrated unit connector. Check the harness between keyless entry control module and body integrated unit. Connector & terminal Model without tire pressure monitoring system (i171) No. 11 - (R80) No. 3: Model with tire pressure monitoring system (i171) No. 11 - (R221) No. 11:	Is harness normal?	Replace the keyless entry control module.	Repair or replace the harness.