On-Board Diagnostic System Description

On-Board Diagnostic System Description

For 4WD control system, 4WD control module has the following functions.

- When ignition switch is turned ON with engine at stop, 4WD AUTO indicator (2) and 4WD LOCK indicator (1) turn on at the same time for 2 seconds in order to check operation of these indicators.
- When 4WD control module detects any malfunction in the following area, 4WD AUTO indicator (2) and 4WD LOCK indicator (1) flash continuously or turn on and 4WD control module comes into fail-safe mode. For details of fail safe mode, refer to Fail-Safe Table Fail-Safe Table.

- 2WD/4WD switch
- Coupling air temperature sensor
- Coupling assembly

- DTC can be checked by using SUZUKI scan tool (3) connected to DLC (4).
- When 4WD control module detects any malfunction, 4WD control module will switch off the current to coupling assembly and vehicle is changed to 2WD position.





DLC (Data Link Connector)

Refer to Description and Operation DLC (Data Link Connector) Description.