CHECK AT ELECTRIC POWER STEERING-ECU




Terminal No.
 Check item
 Checking requirements
 Normal condition
5
 Ignition key signal
 Ignition switch: ON
 System voltage
Ignition switch: OFF
 1.0 V or less
12
 Torque sensor main signal
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.

 0.5 - 4.5 V
(When the steering wheel is not operated, approximately 2.5 V)
13
 Torque sensor GND
 Always
 1.0 V or less
14
 8 V-power supply to the torque sensor
 Start the engine, and let it idle.
 7.6 - 8.4 V
15
 Torque sensor shield earth
 Always
 1.0 V or less
16
 Torque sensor sub signal
  • Start the engine.
  • Turn the steering wheel to the left and right with a vehicle stationary.

 0.5 - 4.5 V
(When the steering wheel is not operated, approximately 2.5 V)
18
 3 V-power supply to torque sensor
 Ignition switch: ON
 2.93 - 3.07 V
21
 Earth
 Always
 1.0 V or less
22
 Battery power supply
 Always
 System voltage
31
 Motor (L)
  • Start the engine.
  • Turn the steering wheel to the left with a vehicle stationary.

 Approximately 50 A or less
32
 Motor (R)
  • Start the engine.
  • Turn the steering wheel to the right with a vehicle stationary.

 Approximately 50 A or less