Code No.B240C Tail gate antenna (outdoor) open

caution

When replacing the ECU, always check that the communication circuit is normal.

DIAGNOSTIC FUNCTION

If an open or short to earth circuit is detected in the outside transmission antenna assembly (tailgate), the diagnosis code is set.

JUDGEMENT CRITERIA

An open circuit or short to earth is detected consecutively five times when radio waves are sent from the outside transmission antenna assembly (tailgate).

PROBABLE CAUSES

Malfunction of the outside transmission antenna assembly (tailgate)
Malfunction of the KOS&OSS-ECU
Damaged wiring harness and connectors

DIAGNOSIS PROCEDURE

STEP 1. Check of short to earth or open circuit in EGTP, EGTG line between the outside transmission antenna assembly (tailgate) connector and the KOS&OSS-ECU connector

Q. Is the check result normal?

Go to Step 2.

Repair the wiring harness.

STEP 2. Keyless operation system communication test

Check that the communication with the outside transmission antenna assembly (tailgate) is normal (Refer to Antenna Test

Tailgate antenna (outdoor)

OK: Normal is displayed.

Q. Is the check result normal?

Go to Step 3.

Replace the outside transmission antenna assembly (tailgate).

STEP 3. Check whether the diagnosis code is set again.

(1)Erase the diagnosis code.

(2)Engine switch: "LOCK" (OFF)

(3)Close all the doors and press the tailgate lock/unlock switch to lock and unlock the door several times.

(4)Check if the diagnosis code is set.

Q. Is the diagnosis code set?

Replace KOS&OSS-ECU and register the ID codes (Refer to

Intermittent malfunction is suspected (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction