Diagzone Xdiag Subscription Renew, LAUNCH LTR-01 RF Sensor, Thinkdiag Renew , Scania SDP3 Installation
Here’s a step-by-step troubleshooting guide to address the P0045 code on a 2018 HINO J05E engine, which indicates an issue with the DC Motor Connector or DC Motor Coil Circuit being open.
Related Contents:
Nexiq USB2 Diagnostic Adapter
HINO Diagnostic Explorer
Technical Overview:
The Variable Nozzle Turbocharger (VNT) actuator uses a Linear Electric Actuator (LEA) to continuously adjust the nozzle vanes, controlling turbo speed and boost pressure.
The LEA contains a sensor that tracks actuator movement and constantly compares the set and actual positions of the nozzle vanes.
A wiping function is performed with the engine off, which helps clean soot and oil from the vanes and checks the turbo’s mechanical operating range.
Fault Description:
No specific fault description.
DTC Setting Conditions:
Detection Criteria:
Ignition is in the “ON” position.
DTC P259F is also present.
Battery voltage ranges between 10-16V.
Engine is either off or running at over 500 rpm for more than 5 seconds.
Judgment Criteria:
There’s an open circuit in the motor terminal or coil.
Reset Conditions:
After the issue is resolved:
MIL (Malfunction Indicator Lamp): ON.
SVS Lamp (Service Vehicle Soon): OFF.
Engine performance is limited until the fault is cleared.
Symptoms if DTC is Active:
Fail-Safe Operation:
Reduced engine power due to backup control.
Other Symptoms:
None noted specifically.
Troubleshooting Process:
Preliminary Inspection:
Check the battery voltage to ensure it’s within the normal operating range (10-16V).
Potential Causes:
Poor contact in the VNT controller connection.
Disconnection within the LEA.
Disconnection within the controller itself.
Post-Inspection Actions:
Clear any old DTCs.
Perform a test drive to confirm the issue is resolved and no new DTCs are present.
Additional Resources:
For other HINO engine troubleshooting cases, consult the HINO Bug Fixes guide.
This guide should help you effectively diagnose and resolve the P0045 error on your 2018 HINO J05E engine.
Related posts:
How to Read and Write Values to HINO Truck using HINO DX3
How useful was this post?
Click on a star to rate it!
Average rating / 5. Vote count:
Please keep this link if you copy the post!