Check Keyless Entry Control Module

KEYLESS ENTRY CONTROL MODULE CHECKING PROCEDURE CHART

Step	Check	Yes	No
1 CHECK DIAGNOSTIC TROUBLE CODE (DTC). Connect the Subaru Select Monitor to the data link connector. Turn the ignition switch to ON. Select {Integ. unit} from main menu. Select the {Diagnostic Trouble Code}. Check that the DTC is displayed.	Is DTC B0500 "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 harness connector. Measure the voltage between harness connector terminal and chassis ground. Connector & terminal (i96) No. 4 (+) - Chassis ground (-):	Is the voltage more than 10 V?	Go to step 3.	Check the harness for open circuits and shorts between the keyless entry control module and fuse.
3 CHECK GROUND CIRCUIT. Measure the resistance between harness connector terminal and chassis ground. Connector & terminal (i96) No. 7 - Chassis ground:	Is the resistance less than 10 Ω?	Go to step 4.	Repair the harness.
4 CHECK KEYLESS ENTRY CONTROL MODULE CIRCUIT. Disconnect the harness connector of body integrated unit. Measure the resistance between harness connector terminals. Connector & terminal (i84) No. 9 - (i96) No. 3:	Is the resistance less than 10 Ω?	Replace the keyless entry control module. < Ref. to KEYLESS ENTRY CONTROL MODULE . >	Repair the harness.