DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) When troubleshooting a vehicle with a diagnosis system, the only difference from the usual troubleshooting procedure is connecting the Techstream to the vehicle and reading various data output from the clearance warning ECU assembly.
The clearance warning ECU assembly stores DTCs when the ECU detects a malfunction in the ECU itself or in its circuits.
To check the DTCs, connect the Techstream to the DLC3 on the vehicle. The Techstream makes it possible to clear the DTCs, activate the various actuators, and check the freeze frame data and Data List.
2. CHECK DLC3
(a) Check the DLC3 (See page
).
Terminals Of Ecu
Data List / Active TestLight Control Switch Circuit
DESCRIPTION
The main body ECU (driver side junction block assembly) receives the following
switch information:
Light control switch position off, tail, head or AUTO
Dimmer switch position high, low or high flash (pass)
Fog light switch posit ...
Parts Location
PARTS LOCATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
...
Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
...