SYSTEM DIAGRAM
Transmitting ECU |
Receiving ECU |
Signal |
Communication Method |
---|---|---|---|
Air Conditioning Control Assembly |
Air Conditioning Amplifier Assembly |
Rear window defogger switch signal |
LIN |
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
When troubleshooting OBD II (On-Board Diagnostics) vehicles, an OBD
II scan tool (complying with SAE J1987) must be connected to the DLC3 (Data
Link Connector 3) of the vehicle. Various data in the vehicle ECM ( ...
Security Indicator Light Circuit
DESCRIPTION
The security indicator light blinks continuously due to a continuous signal received
from the certification ECU (smart key ECU assembly) while the engine immobiliser
is set.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
If the certifica ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful bec ...