Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM000001CFV004X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: AIR CONDITIONING: AIR CONDITIONING SYSTEM: DIAGNOSIS SYSTEM; 2007 MY LX470 [08/2006 -        ]

DIAGNOSIS SYSTEM

1. LIST OF OPERATION METHODS

(a) By operating each of the A/C control switches as shown in the diagram below, it is possible to enter the diagnosis check mode.

2. CHECK DLC3

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

Symbols (Terminals No.)

Terminal Description

Condition

Specified Condition

SIL (7) - SG (5)

Bus '+' line

During transmission

Pulse generation

CG (4) - Body ground

Chassis ground

Always

Below 1 Ω

SG (5) - Body ground

Signal ground

Always

Below 1 Ω

BAT (16) - Body ground

Battery positive

Always

10 to 14 V