DSC HU/CM INSPECTION

1. Remove the battery and battery bracket.

2. Disconnect the DSC HU/CM connector.

3. Connect the SST (49 G066 004) to the DSC HU/CM connector and harness side connector.

4. Inspect voltage referring the table below.

Terminal Voltage Table (reference value)

(Ignition switch is at ON, and connector is connected unless indicated otherwise)

^* :

Used for vehicle manufacturing, not used for DSC.

Inspection Using An Oscilloscope (Reference)

Steering angle (steering angle signal 1 and 2)

• DSC HU/CM terminal:

Steering angle signal 2: W (+) - R (-)

Steering angle signal 1: X (+) - R (-)

• Oscilloscope setting:

1 V/DIV (Y), 25 ms/DIV (X), DC range

• Vehicle condition: Rotating steering wheel at one revolution per second

Note

• As steering wheel rotation speed increases, period of wave shortens.

• As for shape of steering angle signals 1 and 2, the phase is different.

Wheel speed

• DSC HU/CM terminal:

RF: M (+) - I (-)

RR: K (+) - H (-)

LF: F (+) - J (-)

LR: Q (+) - N (-)

• Oscilloscope setting:

1 V/DIV (Y), 2 ms/DIV (X), AC range

• Vehicle condition: Driving 30 km/h {18.6 mph}

Note

• As vehicle speed increases, period of wave shortens.

• If there is malfunctioning in the sensor rotor, wave profile warps.

Vehicle speed output

• DSC HU/CM terminal: AE (+) - A(-)

• Oscilloscope setting:

1 V/DIV (Y), 5 ms/DIV (X), DC range

• Vehicle condition: Driving 30 km/h {18.6 mph}

Note

• As vehicle speed increases, period of wave shortens.