Diagnosis System

AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM (w/o Navigation System): DIAGNOSIS SYSTEM

1. DESCRIPTION

(a) The steering pad switch controls the audio system functions. Steering pad switch data can be read through the vehicle's Data Link Connector 3 (DLC3). In some cases, a malfunction may be occurring in the steering pad switch even though the audio system is not operated. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.

2. CHECK DLC3





HINT
The vehicle uses the ISO 9141-2 for communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 9141-2 format.





* If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector.
HINT
Connect the cable of the Techstream to the DLC3, turn the ignition switch ON and attempt to use the Techstream. If the display indicates that a communication error has occurred, there is a problem either with the vehicle or with the Techstream.

* If communication is normal when the Techstream is connected to another vehicle, inspect the DLC3 of the original vehicle.
* If communication is still not possible when the Techstream is connected to another vehicle, the problem is probably in the Techstream. Consult the Service Department listed in the Techstream's instruction manual.