GENERAL INFORMATION
1. 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 by use of 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 by use of the Techstream and inspection of related parts. |
2. DESCRIPTION
System data and the 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 a malfunction and perform repairs.
3. DATA LINK CONNECTOR 3 (DLC3)
(a) The vehicle ECU uses the ISO 15765-4 communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format.
Terminal No. (Symbol) |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|
7 (SIL) - 5 (SG) |
Bus "+" line |
During transmission |
Pulse generation |
4 (CG) - Body ground |
Chassis ground |
Always |
Below 1 Ω |
5 (SG) - Body ground |
Signal ground |
Always |
Below 1 Ω |
16 (BAT) - Body ground |
Battery positive |
Always |
11 to 14 V |
6 (CANH) - 14 (CANL) |
CAN bus line |
Ignition switch off* |
54 to 69 Ω |
6 (CANH) - 4 (CG) |
HIGH-level CAN bus line |
Ignition switch off* |
200 Ω or higher |
14 (CANL) - 4 (CG) |
LOW-level CAN bus line |
Ignition switch off* |
200 Ω or higher |
6 (CANH) - 16 (BAT) |
HIGH-level CAN bus line |
Ignition switch off* |
6 kΩ or higher |
14 (CANL) - 16 (BAT) |
LOW-level CAN bus line |
Ignition switch off* |
6 kΩ or higher |
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 have a malfunction. Repair or replace the harness and connector.
(b) Connect the cable of the Techstream to the DLC3, turn the ignition switch on and attempt to use the tester. If the display indicates that a communication error has occurred, there is a problem either with the vehicle or with the tester.
HINT:
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
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 a part
is faulty or not.
HINT:
Using the T ...
Disassembly
DISASSEMBLY
PROCEDURE
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable
is reconnected (See page ).
2. REMOVE DOOR PULL HANDLE
(a) Using moulding rem ...