Vehicle Stability Control System (W/ VDIM)
TERMINALS OF ECU1. CHECK BATTERY VOLTAGE
a. Check the battery voltage.
Standard voltage: 10 to 14 V
2. SKID CONTROL ECU INSPECTION
a. Measure the voltage between each terminal or between each terminal and the body ground.
b. Connect the intelligent tester to the DLC3, and check the communication condition with the skid control ECU.
c. Using an oscilloscope, check that the pulse generates between each terminal or between each terminal and the body ground.
NOTE: Inspection should be performed from the back of the connector with the connector connected to the skid control ECU.
HINT: Inspect the ECU from the wire harness side while the connector is connected.
d. Waveform 1 (Reference): Using an oscilloscope:
HINT: As the vehicle speed (tire rotating speed) becomes faster, the cycle becomes shorter.
e. Waveform 2 (Reference): Using an oscilloscope:
HINT: As the vehicle speed (tire rotating speed) becomes faster, the cycle becomes shorter.
f. Waveform 3 (Reference): Using an oscilloscope:
HINT: As the vehicle speed (tire rotating speed) becomes faster, the cycle becomes shorter.