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5E-20 ANTILOCK BRAKE SYSTEM (ABS)
Scan Tool Data
The parameter deta in the table below are values measured with the scan tool when the vehicle is under the fol-
lowing conditions. When taking measurements for comparison by using the scan tool, be sure to check that the
vehicle is under the following conditions.
• Apply parking brake and block wheels.
• Ignition switch ON.
• Turn OFF air conditioner (if equipped).
• Apply no load to power steering ('if equipped). (Don't turn it)
• Turn OFF all electric loads (except ignition).
• No DTC.
• ABS is not operated. (Normal braking operation)
Scan Tool Data
RF WHEEL SPEED
LF WHEEL SPEED
RR WHEEL SPEED
LR WHEEL SPEED
G SENSOR
BATTERY VOLT
PUMP MOTOR RELAY
BRAKE SWITCH
Scan Tool Data Definition
RF Wheel Speed, LF Wheel Speed, RR Wheel Speed and LF Wheel Speed (Km/h, MPH): Wheel speed is an
ABS control module internal parameter. It is computed by reference pulses from the Wheel Speed Sensor.
G Sensor (G): The G-Sensor converts gravity during the vehicle acceleration/deceleration into a voltage condi-
tions and controls the ABS for 4WD vehicle.
Battery Volt (V): Battery Voltage is an analog input signal read by the ABS control module.
Certain ABS control module functions will be modified if the battery voltage falls below or rises above pro-
grammed thresholds.
Pump Motor Relay (V): This parameter indicates the operational condition of the Pump Motor Relay (Transis-
tor).
Brake Switch (ON, OFF): This switch signal informs the ABS control module whether the brake is active or not.
Standards
0 km/h, 0 MPH
0 km/h, 0 MPH
0 km/h, 0 MPH
0 km/h, 0 MPH
0G (4WD)
–2.5 G (2WD)
10 – 17 V
0 V
ON
OFF
Condition
Vehicle stop
Vehicle stop
Vehicle stop
Vehicle stop
Place vehicle on the level
–
–
Brake pedal depressed
Brake pedal released
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