GENERAL INFORMATION
HINT:
*: The Techstream is the name for the diagnostic tester in North America.
TROUBLESHOOTING PROCEDURES
Procedure Type |
Details |
Troubleshooting Method |
---|---|---|
DTC Based Diagnosis |
The diagnosis procedure is based on the DTC that is stored. |
The malfunctioning part is identified based on the DTC detection conditions using a process of elimination. The possible trouble areas are eliminated one-by-one using the Techstream and inspection of related parts. |
Symptom Based Diagnosis (No DTCs stored) |
The diagnosis procedure is based on problem symptoms. |
The malfunctioning part is identified based on the problem symptoms using a process of elimination. The possible trouble areas are eliminated one-by-one using the Techstream and inspection of related parts. |
DESCRIPTION
(a) The data of each system and Diagnostic Trouble Codes (DTCs) can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
CHECK DLC3
(a) The vehicle ECUs use ISO 15765-4 communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format.
Symbol |
Terminal No. |
Name |
Reference Terminal |
Result |
Condition |
---|---|---|---|---|---|
SIL |
7 |
Bus "+" line |
5 - Signal ground |
Pulse generation |
During transmission |
CG |
4 |
Chassis ground |
Body ground |
1 Ω or less |
Always |
SG |
5 |
Signal ground |
Body ground |
1 Ω or less |
Always |
BAT |
16 |
Battery positive |
Body ground |
11 to 14 V |
Always |
CANH |
6 |
CAN "High" line |
14 - CANL |
54 to 69 Ω |
Ignition switch off* |
Battery positive |
6 kΩ or higher |
Ignition switch off* |
|||
4 - CG |
200 Ω or higher |
Ignition switch off* |
|||
CANL |
14 |
CAN "Low" line |
Battery positive |
6 kΩ or higher |
Ignition switch off* |
4 - CG |
200 Ω or higher |
Ignition switch off* |
NOTICE:
*: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors.
If the result is not as specified, the DLC3 may be malfunctioning. Repair or replace the harness or connector.
Toyota CH-R Service Manual > Power Window Control System: Improper Operation
DESCRIPTION
In cases where a door window closed (closes) by itself even though a window closing
operation was not performed, possible causes include vehicle-side malfunction, environmental
causes, or operation by the customer (including other passengers in the vehicle).
By using the operation ...
Toyota CH-R Service Manual > Occupant Classification System: Lost Communication with Multi-axis Acceleration Sensor Module (U0125,U0129)
DESCRIPTION
The occupant detection ECU sends/receives signals to/from each ECU via CAN communication.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
U0125
Lost Communication with Multi-axis Acceleration Sensor Mod ...