Code No.B240B PS side antenna(outdoor) open
caution | When replacing the ECU, always check that the communication circuit is normal. |
DIAGNOSTIC FUNCTION
JUDGMENT CRITERIA
PROBABLE CAUSES
- Malfunction of the outside transmission antenna assembly (passenger’s side)
- Malfunction of the KOS-ECU
- Damaged wiring harness and connectors
DIAGNOSIS PROCEDURE
STEP 1. Connector check: D-37 Outside transmission antenna assembly (passenger’s side) connector, C-23 KOS-ECU connector
Q.
Is the check result normal?
STEP 2. Check the wiring harness between the D-37 outside transmission antenna assembly (passenger’s side) connector terminal No. 1, 2, 3 and the C-23 KOS-ECU connector terminal No. 6, 18, 40.
note | Prior to the wiring harness inspection, check C-16, C-28 <RHD> intermediate connector, and repair if necessary. |
Q.
Is the check result normal?
STEP 3. Keyless operation system communication test
Antennas to be checked
- Front side antenna (outdoor)
Q.
Is the check result normal?
STEP 4. Check whether the diagnosis code is reset.
(1)Erase the diagnosis code. |
(2)Turn the ignition switch from the LOCK (OFF) position to the ON position. |
(3)Check if the diagnosis code is set. |