Scan Tool Testing and Procedures

Scan Tool Data Definitions

Accel pedal Pos (Accelerator pedal position) (%)
Accelerator pedal opening ratio detected by signal on CAN communication line fed from ECM.

Engine Speed (RPM)
This parameter indicates engine revolution calculated by 4WD control module.

4WD mode (2WD / AUTO / LOCK / ABS mode / Yaw cont / ESP req)
This parameter indicates 4WD mode according to 2WD/4WD switch signal status detected by 4WD control module.

4WD current (A)
This parameter indicates input current of coupling assembly.

Battery voltage (V)
This parameter indicates battery voltage detected by 4WD control module.

Coupling temp (°C, °F)
Coupling temperature detected by coupling air temperature sensor installed in coupling assembly.

Wheel speed (F), Wheel speed (R) (km/h, mph)
Wheel speed is an ABS / ESP control module internal parameter. It is computed by reference pulses from the wheel speed sensor.

F-R Wheel speed diff (Front-rear wheel speed differential) (rpm)
This parameter indicates rotation difference between front wheel and rear wheel detected by 4WD control module.

4WD duty (%)
This parameter indicates operation rate of coupling assembly.