Diagnosis System

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: DIAGNOSIS SYSTEM

DIAGNOSIS SYSTEM

1. CHECK DLC3





(a) Check the DLC3.
The ECU uses ISO 15765-4 for communication. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format.





NOTE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors.
HINT: Connect the Techstream to the DLC3, turn the ignition switch to ON, and attempt to use the Techstream. If the screen displays a communication error message, a problem exists on the vehicle side or the Techstream side.
- If communication is normal when connecting the Techstream to another vehicle, inspect the DLC3 on the original vehicle.
- If communication is still not possible when connecting the Techstream to another vehicle, the problem is probably in the Techstream itself. Consult the Service Department listed in the Techstream operator's manual.

2. CHECK WARNING LIGHT
(a) When a problem occurs in the power steering system, the P/S warning light on the combination meter comes on to inform the driver of the problem.