DIAGNOSIS SYSTEM
Troubleshooting
| DESCRIPTION |
Front power seat control system data can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the intelligent tester to check for malfunctions and perform repairs.
| CHECK DLC3 |
The vehicle uses ISO 9141-2 (Euro-OBD) communication protocol. The terminal arrangement of the DLC3 complies with ISO 15031-3 and matches the ISO 9141-2 format.
If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the wire harness and connector.Symbols (Terminal No.)
Terminal Description
Condition
Specified Condition
SIL(7) - SG(5)
Bus "+" line
During transmission
Pulse generation
CG(4) - Body ground
Chassis ground
Always
Below 1 Ω
SG(5) - Body ground
Signal ground
Always
Below 1 Ω
BAT(16) - Body ground
Battery positive
Always
11 to 14 V
- HINT:
- Connect the cable of the intelligent tester to the DLC3, turn the ignition switch on and attempt to use the tester. If the screen displays a communication error message, a problem exists on the vehicle side or the tester side.
- If communication is normal when the tester is connected to another vehicle, inspect the DLC3 of the original vehicle.
- If communication is still not possible when the tester is connected to another vehicle, the problem is probably in the tester itself. Consult the Service Department listed in the tester's instruction manual.
- If communication is normal when the tester is connected to another vehicle, inspect the DLC3 of the original vehicle.
| INSPECT BATTERY VOLTAGE |
Check the battery voltage.
- Voltage:
- 11 to 14 V