Isuzu Forward Tiltmaster NPR/W3500; NPR HD/W4500; NQR/W5500; NRR/W5500 HD, 5.2L 4HK1-T DIESEL ENGINE, 2005 description of the catalogue:

Service Information for Isuzu Commercial Truck Forward Tiltmaster NPR/NQR/NRR, W3500/W4500/W5500/W5500HD, 5.2L 4HK1-T Diesel Engine, 2005 MY

Welcome to the Isuzu / GMC / Chevy Commercial Vehicle CD
This CD contains information on the following vehicles:
2005: NPR/W3500; NPR HD/W4500; NQR/W5500; NRR/W5500 HD with 5.2L Diesel Engine Only

Automatic Transmission 450-43LE
Manual Transmission (MZZ)
Engine Service Manual for 5.2L 4HK1-T Diesel Engine
ENGINE PROTECTION SYSTEM ‘05
Engine willl not Start or will not Shutdown
Wire Identification
Wiring Diagram
Constant Alarm on Low Oil Pressure
Constant Alarm on High Temperature
Constant Alarm on Low Coolant Level
Sensor Location Diagram