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 TestHeadlight Solenoid Circuit
DESCRIPTION
for HID Headlight:
When the main body ECU receives a high beam turn on signal, the main
body ECU activates the bi-function by controlling the BI-XENON relay. The
bi-function increases the upper illumination area of the discharge ...
Engine coolant
The coolant level is satisfactory if it is between the “F” and “L” lines on the
reservoir when the engine is cold.
1. Reservoir cap
2. Full
3. Low
If the level is on or below the “L” line, add coolant up to the “F” line.
- If the ...
Interior Light Circuit
DESCRIPTION
The illuminated entry system controls the roof console box assembly, step or
spot light assembly and transponder key amplifier*1.
HINT:
*1: w/o Smart Key System
WIRING DIAGRAM
PROCEDURE
1.
PERFORM ACTIVE TEST USING ...