Check Keyless Entry Control Module
| Step | Check | Yes | No |
|---|---|---|---|
1 CHECK DIAGNOSTIC TROUBLE CODE (DTC).
|
Is DTC B1500 "Keyless UART com. Malfunction" displayed? | Go to step 2 . | Keyless entry control module is normal. |
2 CHECK POWER SUPPLY.
|
Is the voltage 10 V or more? | 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 (i223) No. 5 - Chassis ground: |
Is the resistance less than 10 Ω? | Go to step 4 . | Repair the harness. |
4 CHECK KEYLESS ENTRY CONTROL MODULE CIRCUIT.
|
Is the resistance less than 10 Ω? | Replace the keyless entry control module. < Ref. to KEYLESS ENTRY CONTROL MODULE . > | Repair the harness. |