[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54B-LOCAL INTERCONNECT NETWORK (LIN) > TROUBLESHOOTING > DIAGNOSIS CODE PROCEDURES > CODE NO. U1539 Theft alarm siren LINchecksum<Vehicles with security alarm sensor><Vehicles with security alarm sensor>
Code No.U1539 Security alarm siren LIN checksum <Vehicles with security alarm sensor>
 
 
 
 
JUDGEMENT CRITERIA
The ETACS-ECU will store diagnosis code No. U1539 when abnormal signals are received from the security alarm siren.
 
 
PROBABLE CAUSES
  • Faulty security alarm siren
 
 
DIAGNOSIS PROCEDURE
Check whether the diagnosis code is set again.
Check again if the diagnosis code is set in the ETACS-ECU.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(3) Check if diagnosis code is set.
Is the diagnosis code set?
Replace the security alarm siren (Refer to GROUP 54A - Security Alarm Siren Removal And Installation ).
A poor connection, open circuit, or other intermittent malfunctions in the LIN bus lines between the security alarm siren and the ETACS-ECU (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).