Check Keyless Entry Control Module

STEP CHECK SHEET

Step	Check	Yes	No
1. CHECK DIAGNOSTIC TROUBLE CODE (DTC) Connect the Subaru Select Monitor to data link connector. Turn the ignition switch to ON. Select {Body integrated 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 the 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 the 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 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 Unit . >	Repair the harness.