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Volvo Engine Fault Code Register

May. 09, 2018

Oil Pressure Sensor (Code 3.1, PID/SPN 100)

Cause

Reaction

Remedy

• Short circuit to positive (+) or

earth (ground) (–)

• Open circuit

• None

• Check that the oil pressure

sensor cable is not damaged

• Check that the oil pressure

sensor is correctly connected

Boost Temperature Sensor (Code 3.2, PID/SPN 105)

Cause

Reaction

Remedy

• Short circuit to positive (+) or

earth (ground) (–)

• Open circuit

None

• Check that the boost temperature

sensor connector is correctly

installed

• Check that the boost temperature

sensor cable is not damaged

• Check that the boost temperature

sensor is correctly

installed

• Check boost temperature

sensor function

Coolant Temperature Sensor (Code 3.3, PID/SPN 110)

Cause

Reaction

Remedy

• Short circuit to positive (+) or

earth (ground) (–)

• Open circuit

• Preheating is also activated

when the engine is hot

• Check that the coolant temperature

sensor connector is

correctly installed

• Check that the coolant temperature

sensor cable is not

damaged

• Check that the coolant temperature

sensor is correctly

installed

• Check coolant temperature

sensor function

Boost Pressure Sensor (Code 3.4, PID/SPN 102/106)

Cause

Reaction

Remedy

• Short circuit to positive (+) or

earth (ground) (–)

• Open circuit

Engine smokes more than

normally during acceleration/

load increase

• Check that the boost pressure

sensor connector is correctly

installed

• Check that the boost pressure

sensor cable is not damaged

• Check that the boost pressure

sensor is correctly installed

• Check boost pressure sensor

function

Boost Pressure Sensor (Code 3.5, PID/SPN 106)

Cause

Reaction

Action

• High charge pressure

• Engine power is reduced or

engine stops.

• Check that the charge air

pressure sensor connector is

correctly installed

• Check that the charge air

pressure sensor cable is not

damaged

• Check that the charge air

pressure sensor is correctly

installed

• Check charge air temperature

sensor function

Fuel Pressure Sensor (Code 3.6, PID/SPN 94)

Cause

Reaction

Remedy

• Short circuit to positive (+) or

earth (ground) (–).

• Open circuit.

• None

• Check that the fuel pressure

sensor connector is correctly

installed.

• Check that the fuel pressure

sensor cable is not damaged.

• Check that the fuel pressure

sensor is correctly installed.

• Check fuel pressure sensor

function.

Oil Temperature Sensor (Code 3.7, PID/SPN 175)

Cause

Reaction

Remedy

• Shorted to plus (+) or minus

(-)

• Break

• None

• Check that the cable harness

to the oil temperature sensor

has not been damaged

• Check that the oil temperature

sensor has been connected

correctly

Fuel Pressure (Code 3.8, PID/SPN 94)

Cause

Reaction

Remedy

• Low supply pressure

• None

• Check if it is possible to build

up pressure with the hand

pump

• Check the fuel filter

• Check the fuel pre-filter

Battery Voltage, EMS (Code 3.9, PID/SPN 158)

Cause

Reaction

Remedy

• Faulty alternator

• Faulty battery, battery cables

• None

• Check the supply voltage

from the control unit

Start output/Start motor relay (Code 4.6, PPID 3/ SPN 677)

Cause

Reaction

Remedy

• Shorted to plus (+) or minus

(-)

• Activated for too long

• The engine cannot be started

• The engine starts immediately

when ignition is turned

on

• Check that connections to the

ignition key/start panel have

not been damaged

• Check that the cable harness

to the ignition key/sart panel

has not been damaged

Stop Input EMS (Code 4.8, PPID 6/SPN 970)

Cause

Reaction

Remedy

• Short circuit to negative (-)

• Open circuit

• Engine can only be stopped

with the auxiliarystop

• Check that the starter switch

connections are not damaged

Exhaust Temperature (Code 4.9, PID 173/SPN 1184)

Cause

Reaction

Remedy

• Short circuit to positive (+) or

negative (-)

• Open circuit

• Exhaust temperature to high

• Warning lamp lights up

• Engine control unit limits

engine power

• Check that the exhaust temperature

sensor connector is

properly mounted

• Check that the wiring to the

exhaust temperature sensor

is not damaged

• Check that the exhaust temperature

sensor is correctly

mounted

• Check the exhaust temperature

sensor function

Starter Input CIU (Code 5.2, PPID 4/SPN 520194)

Cause

Reaction

Remedy

• Shorted to minus (-)

• Activated for too long

• The engine cannot be started

• The engine starts immediately

when ignition is turned

on

• Check that connections to the

ignition key/start panel have

not been damaged

• Check that the cable harness

to the ignition key/start panel

has not been damaged

Stop Input CIU (Code 5.3, PPID 6/SPN 52095)

Cause

Reaction

Remedy

• Short circuit to negative (-)

• Open circuit

• Activated for too long time

• Engine can only be stopped

with the auxiliary stop (AUX

STOP) on engine

• Engine stops. A fault code is

displayed for 40 seconds and

the engine can not be started

during this time. When a fault

code is active, the engine can

be started but not stopped

?Check that the starter switch

connections are not damaged

?Check that the ignition switch

cable is not damaged

Preheating Relay (Code 5.4, PID 45/SPN 626)

Cause

Reaction

Remedy

• Short circuit to positive (+) or

earth (ground) (–).

• Open circuit.

• Preheating can not be activated.

• Preheating is constantly connected.

• Check that the relay input

cable is not damaged.

• Check relay function.

Air Filter Pressure (Code 5.5, PID/SPN 107)

Cause

Reaction

Remedy

• Too large pressure drop

across filter

• Less good response from

engine

• Check the air filter

Air Filter Sensor (Code 5.6, PID/SPN 107)

Cause

Reaction

Remedy

• Shorted to plus (+) or minus

(-)

• Break

• None

• Check that the air filter sensor

contact is correctly installed

• Check that the cable harness

to air filter sensor has not

been damaged

• Check the air filter sensor

functionality

Oil Level (Code 5.7, PID/SPN 98)

Cause

Reaction

Remedy

• Oil level to low

• None

• Check the oil level

Oil Temperature (Code 5.8, PID/SPN 175)

Cause

Reaction

Remedy

• Oil temperature is too high

• The engine control module

limits engine output(unless

protection has been turned off

with thediagnosis tool

VODIA)

• Check the oil level

• Check the oil temperature

• Check the oil temperature

sensor function

Oil Level Sensor (Code 5.9, PID/SPN 98)

Cause

Reaction

Remedy

• Shorted to plus (+) or minus

(-)

• Break

• None

• Check that the cable harness

to the oil level sensor has not

been damaged

• Check the oil level sensor

function


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