ACTUATOR TEST TABLE


Using M.U.T.-III, the following actuators can be forcibly operated:
note
  • ABS and ASTC are operated by ASTC-ECU.
  • When ASTC-ECU is disabled due to the fail-safe function, the actuator test cannot be performed.
  • The actuator test can be performed only when the vehicle is stationary.
  • While the actuator test is performed, the ABS warning lamp, brake warning lamp, ASTC indicator lamp and ASTC OFF indicator lamp.
  • After the actuator test has been performed, the brake warning lamp, ABS warning lamp, ASTC indicator lamp, and ASTC OFF indicator lamp illuminate until the ignition switch is turned to ON again or the communication between M.U.T.-III and ASTC-ECU is terminated.

Actuator test specifications


Item No.
 Check item
 Driven component
01
 FL wheel ABS drive
 Solenoid valve for the corresponding channel of the hydraulic unit and pump motor (simplified inspection mode)
02
 FR wheel ABS drive
03
 RL wheel ABS drive
04
 RR wheel ABS drive
05
 FL wheel TCL drive
06
 FR wheel TCL drive
07
 RL wheel TCL drive
08
 RR wheel TCL drive
09
 Engine TCL Drive
 Sends the engine torque control signal (engine torque = 0 N·m) to the engine ECU for three seconds.
10
 ESS test mode
 The ASTC-ECU requests the ETACS-ECU to activate the emergency stop signal system and then the ETACS-ECU flashes the hazard warning lamps quickly.
11
 Stop lamp test mode
 The ASTC-ECU turns on the stop lamp relay to illuminate the stop lamps and the high-mounted stop lamps.

Operation pattern of items 01 to 08