Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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/Rly off/Yaw con/ESP®)
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.
Wheelspeed (F), Wheelspeed (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 Wheelspeed 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.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.