Toyota Corolla Cross: Diagnosis System
Toyota Corolla Cross (2022-2024) Service Manual / Audio & Visual & Telematics / Telematics / Telematics System / Diagnosis System
DIAGNOSIS SYSTEM
DESCRIPTION
(a) Diagnostic Trouble Codes (DTCs) for the telematics system can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the GTS to check for malfunctions and to repair it.
CHECK DLC3
(a) Check the DLC3.
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Data List / Active Test
DATA LIST / ACTIVE TEST
NOTICE:
In the table below, the values listed under "Normal Condition" are
reference values. Do not depend solely on these reference values when deciding whether
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Telematics System
DTC No.
Detection Item
Link
U014087
Lost Communication with Body Control Module Missing
Lost Communication with Body Control Module Missing Message (U014087,U015587,U016387)
DESCRIPTION
These DTCs are stored when a malfunction occurs in the CAN communication
circuit.
DTC No.
Detection Item
DTC Detection Condition
Trouble Are
SEE MORE:
Reserve Lock Switch
RemovalREMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 BACK DOOR INSIDE HANDLE BASE ASSEMBLY
69290G -
- -
2 BACK DOOR CONTROL SWITCH
84931C -
- - PROCEDURE
1. REMOVE BACK DOOR INSIDE HANDLE BASE
Check Bus 7 Line
DESCRIPTION
Symptom
Trouble Area
There are ECUs or sensors that display a communication stop on the bus
diagnostic screen. Or, there are ECUs or sensors that display communication
stop history on the "Detail" screen.
CAN main
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