GENERAL INFORMATION
HINT:
*: The Techstream is the name for the diagnostic tester in North America.
1. TROUBLESHOOTING PROCEDURES
Procedure Type |
Detail |
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
(a) Each 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 malfunctions and perform repairs.
3. CHECK DLC3
(a) The vehicle ECUs use ISO 15765-4 communication protocol. The terminal arrangement of the DLC3 complies with ISO 15031-3 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 have a malfunction. Repair or replace the harness and connector.
Idle Control System Malfunction (P0505)
DESCRIPTION
The idle speed is controlled by the electronic throttle control system. The electronic
throttle control system is comprised of: 1) the one-valve-type throttle body; 2)
the throttle actuator, which operates the throttle valve; 3) the throttle p ...
Operation Check
OPERATION CHECK
1. CHECK WINDOW LOCK SWITCH
HINT:
Before performing the window lock switch operation check, make sure that the
window lock switch is off (the switch is not pushed in).
(a) Check that the front passenger and rear windows cannot be operat ...
IG Power Source Circuit
DESCRIPTION
The main power source is supplied to the A/C amplifier when the ignition switch
is ON.
The power source is used for operating the A/C amplifier and servo motor, etc.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for cir ...