Precautions for Diagnosing Trouble

Precautions for Diagnosing Trouble

To ensure that the trouble diagnosis is done accurately and smoothly, observe the following and follow ESP System Check ESP (R) System Check.

- Before using scan tool, read its "Operator's (Instruction) Manual" to know how to use it.
- If the vehicle was operated in any of the following ways, ABS warning light and ESP (R) warning light may light momentarily but this does not indicate any fault in ESP (R) system.

- The vehicle was driven with parking brake applied.
- The vehicle was driven with brake dragging.
- The vehicle was stuck in mud, sand, etc.
- Wheel spin occurred while driving.
- Wheel(s) was rotated while the vehicle was jacked up.

- Be sure to follow trouble diagnosis procedure described in ESP System Check ESP (R) System Check. If trouble diagnosis procedure is not followed properly, it may result in incorrect diagnosis. (If incorrect procedure is performed, other DTC may be stored in the ESP (R) hydraulic unit / control module assembly.)
- When disconnecting ESP (R) control module connector (1), pull down the lock lever (2) of connector.
When connecting, set the connector on ESP (R) hydraulic unit / control module assembly and pull up the lock lever (2) until it locks.











- Communication of ECM, TCM, BCM, ESP (R) control module, 4WD control module, D/S control module, DLC, steering angle sensor and combination meter is established by CAN.
Therefore, be sure to read Service Precautions Precautions for Installing Mobile Communication Equipment
before inspection and handling CAN communication line.