The specific you are trying to resolve Share public link
configuration found in Navara (D40) and Pathfinder (R51) models, and a version in some D22 variants
The starter motor whined, and the YD25 roared to life. It coughed once, a puff of white smoke, and then settled into a smooth, rhythmic idle. The check engine light blinked once and vanished.
A 2-pin connector on the high-pressure pump that regulates fuel volume. yd25 ecu pinout free
Check for 12V battery and 12V ignition at the ECU pins. Check the grounds directly at the ECU connector with a multimeter for low resistance to the battery negative. Check the continuity of the CAN bus or K-line from the ECU pin to the OBD2 port (Pin 6 & 14 for CAN, Pin 7 for K-Line).
Proper voltage supply is critical for ECU operation. If your scan tool cannot communicate with the ECU, check these pins first.
Controls fuel volume entering the high-pressure pump. A faulty SCV wire causes surging or stalling. The specific you are trying to resolve Share
Ten minutes later, the ECU was bolted back into the engine bay. The connectors clicked into place with a satisfying sound.
Connects directly to Pin 7 and Pin 6/14 of the data link connector under the dashboard for scanner communication. Step-by-Step Diagnostic Voltage Testing
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. A 2-pin connector on the high-pressure pump that
Use proper back-probing pins to avoid damaging the waterproof seals on the ECU connector.
). Test between the ECU ground pins and the negative battery terminal. The reading should be less than 0.2 Ωcap omega Troubleshooting Common YD25 Wiring Issues