Toyota Corolla Cross: Diagnosis System
Toyota Corolla Cross (2022-2024) Service Manual / Vehicle Exterior / Sliding Roof / Convertible / Sliding Roof System / Diagnosis System
DIAGNOSIS SYSTEM
DESCRIPTION
(a) Sliding roof system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). When the system seems to be malfunctioning, use the GTS to check for malfunctions and perform repairs.
CHECK DLC3
(a) Check the DLC3.
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INSPECT AUXILIARY BATTERY VOLTAGE
(a) Measure the auxiliary battery voltage with the ignition switch off.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.
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Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE:
In the following table, 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 Sliding Roof System
DTC No. Detection Item
DTC Output from Link
B234149 Sliding Roof Motor Internal Electronic Failure
Main Body
Sliding Roof Motor Internal Electronic Failure (B234149,B234407)
DESCRIPTION When the sliding roof ECU (sliding roof drive gear sub-assembly) detects a motor malfunction and the sliding roof operation is stopped, DTC B234149 is stored.
When the sliding roof ECU (s
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Diagnosis System
DIAGNOSIS SYSTEM
CHECK FOR DTCs (USING SYSTEM CHECK MODE SCREEN)
HINT:
When system self-diagnosis DTCs cannot be output due to a malfunction
that is preventing diagnosis mode from being started or the multi-display
from displaying, read the DTCs using the GTS.
Depending on the multi
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple
suspected areas are listed, the potential causes of the symptoms are listed in order
of probability in the "Suspected Area" column of the table. Check each symptom by
check
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