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Check Keyless Entry Control Module

WARNING: This page is about a different car, the 2007 Subaru Outback and 2007 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.
KEYLESS ENTRY CONTROL MODULE CHECKING PROCEDURE CHART

Step Check Yes No
1 CHECK DIAGNOSTIC TROUBLE CODE (DTC). 
  1. Connect the Subaru Select Monitor to the data link connector.
  2. Turn the ignition switch to ON.
  3. Select {Integ. unit} from main menu.
  4. Select the {Diagnostic Trouble Code}.
  5. 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. 
  1. Disconnect the keyless entry control module harness connector.
  2. 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. 
  1. Disconnect the harness connector of body integrated unit.
  2. 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.
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