DESCRIPTION
The headlight leveling ECU assembly outputs DTC information to the Techstream via this circuit.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (DLC3 - HEADLIGHT LEVELING ECU ASSEMBLY) |
(a) Disconnect the A40 headlight leveling ECU assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A40-15 (PRST) - D1-7 (SIL) |
Always |
Below 1 Ω |
|
A40-15 (PRST) - Body ground |
Always |
10 kΩ or higher |
| OK | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
LVL Terminal CircuitSelecting trailer ball
Use the correct trailer ball for your application.
1. Trailer ball load rating
Matches or exceeds the gross trailer weight rating of the trailer.
2. Ball diameter
Matches the size of the trailer coupler. Most couplers are stamped with the required
trai ...
System Diagram
SYSTEM DIAGRAM
Transmitting ECU
(Transmitter)
Receiving ECU
Signal
Communication Method
ECM
Power Steering ECU
Engine speed signal
Engine variation inform ...
Trailer Tongue Weight
• A recommended tongue weight varies in accordance with the types of trailers
or towing as described below.
• To ensure the recommended values shown below, the trailer must be loaded by
referring to the following instructions.
• Tongue Weight The g ...