DV11
Operation and Maintenance
157
Engine Diagnostic
Printed in Mar. 2005 PS-MMA0608-E1A
3.7.4. Input and output of the ECU
Input Output
Engine
Vehicle
Input and output of ECU
· Coolant temperature sensor
· Fuel temperature sensor
· Boost pressure and
temperature sensor
· Oil pressure and
temperature sensor
· Crankshaft speed sensor
· Camshaft speed sensor
· Common rail pressure sensor
· Starter switch
· Clutch pedal switch
· Parking brake switch
· Pedal brake switch
· Vehicle speed
· Accelerator pedal position
sensor and operation switch
· Cruise - OFF switch
· Cruise - RESUME switch
· Cruise - SET / INC switch
· Cruise - SET / DEC switch
· Door open sensing switch
· Engine brake switch
· Diagnostic switch
Engine output
· Injector output
· Fuel high pressure pump
- fuel metering unit
Vehicle output
· Cruise / PTO option display lamp
· Preheating relay output
· Preheating display lamp
· Diagnostic information
output lamp
· Engine brake relay output
· Engine speed and vehicle speed
display
Communication
· Engine diagnostic communication
· CAN communication
Electric
control
unit
(ECU)
Engine