Check Keyless Entry Control Module

Perform the diagnosis for LAN system. Ref. to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE .

Is LAN system normal?

Yes

Keyless entry control module is normal.

No

Go to  2 .

1. Disconnect the keyless entry control module connector.
2. Measure the voltage between keyless entry control module connector and chassis ground.

   Connector & terminal 

   (R221) No. 12 (+) - Chassis ground (-):

Is the voltage 10 V or more?

Yes

Go to  3 .

No

Check the harness for open or short circuits between the keyless entry control module and the fuse.

Measure the resistance between keyless entry control module connector and chassis ground.

Connector & terminal 

(R221) No. 7 - Chassis ground:

Is the resistance less than 10 Ω?

Yes

Replace the keyless entry control module.

No

Repair or replace the harness.