Volvo D2-55 D User Manual

Workshop manual
Group 30
A
2(0)
D1-13 B • D1-20 B
D1-30 B • D2-40 B
D2-55 D • D2-55 E
D2-75 B • D2-75 C
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Volvo D2-55 D Specifications

General

Engine Type	Diesel
Number of Cylinders	4
Power Output	55 hp
Cooling System	Freshwater
Displacement	2.2 liters

Summary

The MDI system

Component location

Component description

MDI

Mechanical Diesel Interface: connection and function.

Repair instructions

Fault tracing of cables and connectors

Methods for diagnosing cable and connector issues.

Checking the charging system

Steps to verify the alternator and battery charging.

Oil pressure (engine) warning

Coolant temperature warning

Check coolant temperature sensor

Testing the coolant temperature sensor's resistance.

Multilink fault

Check speed sensor, flywheel

Testing the flywheel speed sensor's function.

Check NMEA 2000 Gateway LED

Manual fault tracing of bus cables

Troubleshooting NMEA bus cables and connections.

Fuel level warning

Check fuel level sensor

Testing the fuel level sensor's resistance and voltage.

Button panel fault

Check button panel

Testing the button panel for proper function.

Stop solenoid fault

Check MDI output for stop solenoid

Testing MDI output signal to the stop solenoid.

Check stop solenoid

Testing the stop solenoid directly.

Start / preheat warning

Check MDI output for starter solenoid

Testing MDI output signal for the starter solenoid.

Check MDI output for preheat function

Battery warning

Fault tracing

Diagnosing battery charging and voltage issues.

Wiring diagram

Pin configuration, MDI

Technical data