ACD Operation Check
ACD OPERATION CHECKCAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the LOCK (OFF) position before connecting or disconnecting scan tool MB991958.
1. Connect scan tool MB991958 to the data link connector.
2. Start the engine.
3. Set the steering wheel to the neutral position, and carry out the actuator test (Item No.05) using scan tool MB991958. Then, activate the transfer forcibly.
NOTE:
^ Actuator test (Item No.05: ACD operation check mode) is activated for 1 minute and is deactivated automatically. In addition, it can be forcibly deactivated by the clear key of scan tool MB991958.
^ When the ACD is not working due to a fail-safe function, the transfer cannot be activated forcibly.
4. Turn the steering wheel 180° or more to the right or left, and drive the vehicle at 20km/h (12 mph) or less to check that tight corner braking occurs.
NOTE:
^ The occurrence level of the body vibration and noise depends on the condition of tires and roads.
^ If tight corner braking does not occur, check the hydraulic pressure because the system may be defective.