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Iveco Trakker Euro 4/5 Fault Codes List
See also:
▪ Iveco Stralis Fault Codes List
▪ Iveco Workshop Manuals PDF
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
113
Acceler
ator
pedal/ brake
pedal suspect
Vehicle acceleration
very slow. Engine
idle speed: 500 rpm.
Accelerator pedal
and brake pressed
simultaneously (for
too long);
Accelerator pedal
blocked or faulty;
Incorrect use of
vehicle.
Check the accelerator pedal
signal and pedal mechanical
movement.
116
Clutch
signal
suspect
The parameter
reading shows that
the clutch is pressed.
Clutch switch faulty
or wiring problems in
pedal.
Check clutch pedal
switch and wiring.
117
Brake pedal
signal
error
Slight power reduction
Main and
secondary brake
switch not
synchronised. One
of the two brake
pedal switches may
be stuck.
Check the synchronisation of
both switches (signal) and
wiring.
119
Plausibil
ity +
15
Possible mechanical
problem (in pawl) or
electrical problem.
Check wiring.
121
Speed limiter w
/ light
Warning light
permanently off.
Short circuit or
defective wiring.
Check wiring.
122
Warning light
ODB
Warning light
permanently off.
Short circuit or
defective wiring.
Check wiring.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
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123
Edc lamp
Warning light
permanently off.
Short circuit or
defective wiring.
Check wiring.
124
Cold
start
lamp
Warning light
permanently off.
Short circuit or
defective wiring.
Check wiring.
125
Main relay
defect
Possible problems
during after-run.
Relay short circuit
to battery positive or
ground.
Check wiring between ECM
and battery.
Replace relay if necessary.
126
Battery voltage
Possible problems
during after-run.
Alternator or battery
defective. Possible
wiring problem.
Check wiring.
Replace alternator
regulator or battery
Replace the alternator if
necessary.
127
Engine brake
electro
valve
Engine brake not
operational.
Relay or wiring
short-circuited or
interrupted.
Check wiring.
Replace relay if necessary.
128
Main relay short circuit to
battery
Possible problems
during after-run.
Relay short circuit
to battery positive or
ground.
Relay may be faulty.
Check wiring between ECM
and battery.
Replace relay if necessary.
129
Air
conditioner
com
pressor
relay
Possible problems
during after run.
Relay short circuit
to battery positive or
ground.
Relay may be
faulty.
Check wiring between ECM
and battery.
Replace relay if necessary.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
12A
Relays for
engine brake
valve
Possible problems
during after run.
Relay short circuit
to battery positive or
ground.
Relay may be faulty.
Check wiring between ECM
and battery.
Replace relay if necessary.
12B
Thermostarter
relay 1
(heater)
Heater not working.
Relay or wiring
short circuited or
interrupted.
Check wiring.
Replace relay if necessary.
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12C
Thermostarter
relay 2
Heater not working.
Relay or wiring
short circuited or
interrupted.
Check wiring.
Replace relay if necessary.
12E
Manageme nt
system
pre/
post heating
(active)
Grid heater
permanently
operating.
Grid heater short
circuited to ground.
Check wiring and
component.
131
Coolant
tem
perature
sensor
No reaction noticeable
on behalf of the
driver.
Sensor short circuited or value
implausible.
Check the wiring. Replace
sensor if necessary.
132
Coolant
tem
perature
sensor (test)
Slight power
reduction.
Operation in extreme
environmental
conditions or sensor
inaccurate.
Ensure the engine is not
working in extreme
environmental conditions.
Check the wiring and the
sensor accuracy.
Replace sensor if necessary.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
133
Air
tem
perature
sensor boost
air
Slight power reduction.
Sensor short
circuited or value
implausible.
Check the wiring. Re- place
sensor if necessary.
134
Boost
pressure
sensor
No reaction
perceivable by the
driver.
Parameter recov
ery
value: 2700 mbar.
Sensor short
circuited or
difference between
environmental
pressure and turbo
pressure
implausible.
Check the wiring. Also
check the environ- mental
pressure sensor. Replace
sensor if necessary.
135
Fuel
tem
perature
sensor
Slight power reduction.
Sensor shortcircuited or value
implausible.
Check the wiring. Re- place
sensor if necessary.
138
Oil pressure
sensor
No reaction
perceivable by the
driver.
Parameter recov
ery
value: 3000 mbar.
Sensor shortcircuited or value
implausible.
Check the wiring and oil level.
Replace sensor
if
necessary.
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13A
Oil tem
perature
sensor
No reaction
perceivable by the
driver.
Parameter recovery
value: coolant
temperature value
(if intact) otherwise
120 C).
Sensor shortcircuited or value
implausible.
Check the wiring. Replace
sensor if necessary.
13C
Atmospheric
temperature
sensor
(humidtiy?)
No reaction
perceivable by the
driver.
Parameter recovery
value: 40 C.
Sensor shortcircuited or value
implausible.
Check the wiring. Replace
sensor if necessary.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
141
Crank
shaft
speed
No reaction noticeable
on behalf of the
driver.
Signal interrupted or
wiring problem.
Sensor installation
may not be correct.
Check wiring and installation.
Replace sensor
if
necessary.
142
Engine
working only
With
camshaft
sensor
No reaction
perceivable by the
driver.
Signal interrupted or
wiring problem.
Sensor installation
may no t be correct.
Check wiring and installation.
Replace sensor if
necessary.
143
Camshaft
sensor
No reaction
perceivable by the
driver.
Signal interrupted or
wiring problem.
Sensor installation
may no t be correct.
Check wiring and installation.
Replace sensor
if
necessary.
144
Fault between
fly-Wheel
sensor and
camshaft
No reaction noticeable
on behalf of the
driver.
Signal interrupted or
wiring problem.
Flywheel and timing
sensor installation
may be incorrect.
Check wiring and installation
of both sensors.
145
Fan
relay
No reaction
perceivable by the
driver.
Fan off.
Short circuit or fan
actuator faulty.
Check the wiring and the
fan actuator.
Replace the actuator if
necessary.
148
Air
conditioner
com
pressor
relay
Air conditioner
permanently off.
Wiring or relay
short-circuited.
Check the wiring. Replace
relay if necessary.
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DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
149
Preheating relay
fuel
Filter
Filter heater not
working.
Wiring or filter
heater shortcircuited.
Check the wiring. Re- place
the filter heater if necessary.
151
Injecto
r
cylinder
1
The engine runs on 5
cylinders.
Injector no.1
electric trouble.
Check correct tightness to
torque of the connectors on
the solenoid valve of the
injector (1.36 - 1.92 Nm).
Check
the integrity of the
injector coil and replace the
injector if defective. If the coil is
integral, check the wiring
between the solenoid valve and
EDC -con
nector.
152
Injecto
r
cylinder
2
The engine runs on 5
cylinders.
Injector no.2
electric trouble.
Check correct tightness to
torque of the connectors on
the solenoid valve of the
injector (1.36 - 1.92 Nm).
Check
the integrity of the
injector coil and replace the
injector if defective. If the
coil is integral, check the
wiring between the solenoid
valve and EDC connector.
153
Injecto
r
cylinder
3
The engine runs on 5
cylinders.
Injector no.3
electric trouble
Check correct tightness to
torque of the connectors on
the solenoid valve of the
injector (1.36 - 1.92 Nm).
Check
the integrity of the
injector coil and replace the
injector if defective. If the coil
is integral, check the wiring
between the solenoid valve
and EDC con
nector.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
149
Pre-heating
relay
fuel
Filter
Filter heater not
working.
Wiring or filter
heater shortcircuited.
Check the wiring. Replace the
filter heater if necessary.
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151
Injecto
r
cylinder
1
The engine runs on 5
cylinders.
Injector no.1
electric trouble.
Check correct tightness to
torque of the connectors on
the solenoid valve of the
injector (1.36 - 1.92 Nm).
Check
the integrity of the
injector coil and replace the
injector if defective. If the coil is
integral, check the wiring
between the solenoid valve and
EDC- con
nector.
152
Injecto
r
cylinder
2
The engine runs on 5
cylinders.
Injector no.2
electric trouble.
Check correct tightness to
torque of the connectors on
the solenoid valve of the
injector (1.36 - 1.92 Nm).
Check
the integrity of the
injector coil and replace the
injector if defective. If the
coil is integral, check the
wiring be- tween the
solenoid valve and EDCconnector.
153
Injecto
r
cylinder
3
The engine runs on 5
cylinders.
Injector no.3
electric trouble
Check correct tightness to
torque of the connectors on
the solenoid valve of the
injector (1.36 - 1.92 Nm).
Check
the integrity of the
injector coil and replace the
injector if defective. If the coil
is integral, check the wiring
between the solenoid valve
and EDC-con
nector.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
154
Injector
Cylinder 4
The engine runs
on 5 cylinders
Injector no.4
electric trouble
Check correct tightness to
torque of the connectors on
the solenoid
valve of the
injector
(1.36 - 1.92 Nm).
Check
the integrity of the
in
jector coil and replace
the
injector if defective. If the coil
is integral,
check the wiring
between the solenoid
valve and EDC connector.
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155
Injector
Cylinder 5
The engine runs on 5
cylinders
Injector no.5
electric
trouble
Check correct tightness to
torque of the connectors on
the solenoid
valve of the
injector
(1.36 - 1.92 Nm).
Check
the integrity of the
in
jector coil and replace
the
injector if defective. If the coil
is integral,
check the wiring
between the solenoid valve
and EDC connector.
156
Injector
Cylinder 6
The engine runs on 5
cylinders
Injector no.6
electric
trouble
Check correct tightness to
torque of the connectors on
the solenoid
valve of the
injector
(1.36 - 1.92 Nm).
Check
the integrity of the
in
jector coil and replace
the
injector if defective. If the coil
is integral,
check the wiring
between the solenoid valve
and EDC connector.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
161
Injector
Cylinder
1 /
short
-Circuit
One or more in
jectors
(bank 1 or bank 2) not
oper
ating.
Possible short
-circuit
in con
nections.
Poss
ible problem in
Injector coil .
Possible
problem in control
unit.
Check wiring. Possible internal
problem also in ECM. Replace
the injector if
necessary.
162
Injector
Cylinder
2 /
short
-Circuit
One or more in
jectors
(bank 1 or bank 2) not
oper
ating.
Possible short
-circuit
in con
nections.
Poss
ible problem in
injector coil .
Possible
problem in control
unit.
Check wiring. Possible internal
problem also in ECM. Replace
the injector if
necessary.
163
Injector
Cylinder
3 /
short
-Circuit
One or more in
jectors
(bank 1 or bank 2) not
oper
ating.
Possible short
circuit
in con
nections.
Poss
ible problem in
injector coil .
Possible
problem in control
unit.
Check wiring. Possible internal
problem also in ECM. Replace
the injector if
necessary.
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164
Injector
Cylinder
4 /
short
-Circuit
One or more in
jectors
(bank 1 or bank 2) not
oper
ating.
Possible short
-circuit
in con
nections.
Poss
ible problem in
injector coil .
Possible
problem in control
unit.
Check wiring. Possible internal
problem also in ECM. Replace
the injector if
necessary.
165
Injector
Cylinder
5 /
short
-Circuit
One or more in
jectors
(bank 1 or bank 2) not
oper
ating.
Possible short
circuit
in con
nections.
Poss
ible problem in
injector coil .
Possible
problem in control
unit.
Check wiring. Possible internal
problem also in ECM. Replace
the injector if
necessary.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
166
Injector
Cylinder
6 /
short
-Circuit
One or more in
jectors
(bank 1 or bank 2) not
oper
ating.
Possible short
-circuit
in connections.
Possible prob
lem in
injector coil.
Possible
problem in control
unit.
Check wiring. Possible internal
problem also in ECM. Replace
the injector if
necessary.
167
Injector
Cylinder
1 /
open
circuit
One or more in
jectors
(bank 1 or
bank 2) not
oper
ating.
Possible injector
Connection problem
(or disconnected
inter
nally).
Possible
problem in control
unit (capacitor).
Check wiring. Possible internal
problem also in ECM. Replace
the injector if
necessary.
168
Injector
Cylinder
2 / open
Circuit
One or more in
jectors
(bank 1 or bank 2) not
oper
ating.
Possible injector
connection problem
(or disconnected
inter
nally).
Possible
problem in control
unit (capacitor).
Check wiring. Possible internal
problem also in ECM. Replace
the injector if
necessary.
169
Injector
Cylinder
3 / open
Circuit
One or more in
jectors
(bank 1 or bank 2) not
oper
ating.
Possible injector
connection problem
(or disconnected
inter
nally).
Possible
problem in control
unit (capacitor).
Check wiring. Possible internal
problem also in ECM. Replace
the injector if
necessary.
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DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
16A
Injecto
r
cylinder 4 /
open circuit
One or more injectors
(bank 1 or bank 2) not
operating.
Possible injector
connection problem
(or disconnected
internally).
Possible
problem in control
unit (capacitor).
Check wiring. Possible internal
problem also in ECM. Replace
the injector if necessary.
16B
Injecto
r
cylinder 5 /
open
Circuit
One or more injectors
(bank 1 or bank 2) not
operating.
Possible injector
connection problem
(or dis
connected
internally). Possible
problem in control
unit (capacitor).
Check wiring. Possible internal
problem also in ECM. Replace
the injector if necessary.
16C
Injecto
r
cylinder 6 /
open circuit
One or more injectors
(bank 1 or bank 2) not
operating.
Possible injector
connection problem
(or disconnected
internally). Possible
prob
lem in control
unit (capacitor).
Check wiring. Possible internal
problem also in ECM. Replace
the injector if necessary.
16D
Compression
test in progress
Compression Test
in progress.
After carrying out the
compression test, turn the
key OFF (after-run).
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
16E
The minimum
number of
injections
Was not
reached: stop
the Engine
More than 2 injectors
not operating.
See individual faults in
injectors.
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171
Bench 1 cc
One or more injectors
(bank 1 or bank 2) not
operating.
Possible injector
connection problem.
Injectors shortcircuited.
Check wiring. Possible internal
problem also in ECM. Replace
the injector if necessary.
173
Bench 2 cc
One or more injectors
(bank 1 or bank 2) not
operating.
Possible injector
connection problem.
Injectors shortcircuited.
Check wiring. Possible internal
problem also in ECM. Replace
the injector if necessary.
17C
Bench 1
injectors
check (internal
ecu)
One or more injectors
(bank 1 or bank 2)
may not be operating.
Fault in control unit.
Replace the engine
control unit.
189
Egr power St.
Short To batt.
No fault perceived by
the driver.
EGR not
working.
Short circuit or EGR
actuator faulty.
Check wiring.
Replace the EGR actuator if
necessary.
191
Turbine
actuator
control
Electro-
valve
Poor
perform
ance
VGT actuator or
wiring defective.
Check VGT wiring and
actuator.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
192
TURBINE
ACTUATO
R
CON
TROL
ELECTROVALVE
SHORT
CIRCUIT
TO
POSI
TIVE
Poor performance
VGT actuator or
wiring defective.
Check VGT wiring and
actuator.
193
TURBINE
WHEEL
REVS
SENSOR
Poor performance
Air filter blocked
or turbine rpm
sensor signal
implausible.
Check the air filter and
check parameters linked
with the turbine by
performing a road test
(parameter acquisi
tion).
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198
FAULT ON
AT LEAST
TWO OF
THE
FOLLOWIN
G
SENSORS:
TURBINE
SPEED,
BOOT
PRESSUR
AND
EX
HAUST
GAS
PRESSURE
Poor performance
Sensor signal
implausible.
Sensor may be
faulty.
Determine which tur
bine
component caused the
problem.
199
TURBOCHARGER
CON
TRO
BOOST
PRESSURE
FAILURE
(PCR)
Poor performance
Turbo sensor or
actuator may be
faulty. Air filter
may be blocked.
Check turbine sensors
and actuator (para
meter
acquisition). Check
whether air filter
is
blocked.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
19A
TURBINE
SPEED
EXCEEDING
EVERY
PER
MITTED
RANGE
Poor
perform
ance
Turbo sensor or
actuator may be
faulty.
Air filter may
be blocked.
Check turbine sensors and
actuator (parameter
acquisition). Check whether
air filter
is blocked.
19B
TURBINE IN
OVERSPEED
(THE FAULT
IS
NOT
DISPLAYED
IF IT IS
CAUSED BY
A LOW
ATMOSPERI
C PRESSURE)
Poor
perform
ance
Air filter blocked or
turbine rpm sensor
signal implausible.
Check the air filter and
check parameters linked
with the turbine by
performing a road test
(parameter acquisition).
19F
NOx SENSOR
ERROR
No effect perceived by
the driver.
Sensor signal
implausible.
Nox
sensor may
be
faulty.
Check the Nox sensor.
1A5
TIMEOUT
OF CAN
MESSAGE
DM1DCU
No effect perceived by
the driver.
Problems in the
Denoxtronic (on the
CAN
line).
Check wiring.
Check and correct any faults
in the Denoxtronic control
unit.
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1A6
TIMEOUT
OF CAN
MESSAGE
SCR1
No effect perceived by
the driver.
CAN configuration
incorrect. CAN
connection
defective. Terminal
resistance not suit-
able.
Check CAN line wiring.
Check Denoxtronic control
unit wiring and operation.
1AE
HUMIDITY
SENSOR
No effect perceived
by the
driver.
Sensor shortcircuited or faulty.
Check wiring Replace sensor
if
necessary.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
1AF SERIOUSE
OBD FAULT
FROM
DE
NOX
TRON
IC (EOBD
FLASHING
LIGHT)
No effect per
ceived by
the
driver.
Problems in Ad
Blue
dosing sys
tem.
Check the faults in the
Denoxtronic and con
sult the
control unit
troubleshooting
guide.
1B1 ERROR
ON
CAN
CON
TROLLE
R A
No effect per
ceived by
the
driver.
CAN configuration
incorrect. CAN
connec
tions
defective. Terminal
resis
tance not
suit
able.
Check CAN line wiring. Check
terminal resis
tances.
1B2 ERROR
ONCAN
CON
TROLLE
R B
No effect per
ceived by
the
driver.
CAN configuration
incorrect. CAN
connec
tions
defective. Terminal
resis
tance not
suit
able.
Check CAN line wiring. Check
terminal resis
tances.
1B3 ERROR
ON
CAN
CON
TROLLE
R C
No effect per
ceived by
the
driver.
CAN configuration
incorrect. CAN
connec
tions
defective. Terminal
resis
tance not
suit
able.
Check CAN line wiring. Check
terminal resis
tances.
1B4 TIMEOUT
CAN
MESSAGE
BC2EDC1
No effect per
ceived by
the
driver.
CAN configuration
incorrect. CAN
connec
tions
defective. Terminal
resis
tance not
suit
able.
Check CAN line wiring.
Check BC wiring and
operation.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
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1B5
TIMEOUT
CAN
MESSAGE
VM2EDC
No effect perceived
by the driver.
CAN configuration
incorrect. CAN
connections
defective.
Terminal resistance
not suitable.
Check CAN line wiring.
Check VCM wiring and
operation.
1B7
ERROR ON
MESSAGES
CAN IN
TRANSMISSI
ON
No effect perceived
by the driver.
CAN configuration
incorrect. CAN
connections
defective.
Terminal resistance
not suitable.
Check CAN line wiring.
Check ECM wiring and
operation.
1B9
ERROR ON
THE EOBD
LIGHT
MANAGED
BY THE
CLUSTER)
No effect perceived
by the driver.
MIL/Body Controller
warning light
defective.
Consult the Body Controller
troubleshooting guide and
check the CAN line.
1BA
TIMEOUT
CAN
MESSAGE
DASH
DISPLAY
No effect perceived
by the driver.
CAN messages from
VCM inconsistent.
Consult the VCM
troubleshooting guide and
check the CAN line.
1BC
TIMEOUT
CAN
MESSAGE
AMB
COND
No effect perceived
by the driver.
CAN messages from
VCM in- consistent.
Consult the VCM
troubleshooting guide and
check the CAN line.
1BD
TIMEOUT
CAN
MESSAGE
CCVS
No effect perceived
by the driver.
CAN messages from
VCM or BC
inconsistent.
Consult the VCM /BC
troubleshooting guide and
check the CAN line.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
1C2
ERROR
MESSAGE
CAN ETC1
No effect perceived
by the driver.
CAN messages from
ETC (gearbox)
inconsistent.
Check the ETC connection
with the CAN line.
1C3
TIMEOUT IN
RECEIVING
TC01 CAN
MESSAGE
No effect perceived
by the driver.
CAN messages
from TCO inconsistent.
Check the TCO connection
with the CAN line.
1C6
ERROR
MESSAGE
CAN
TSC1PE
No effect perceived
by the driver.
CAN messages from
TCU (Transmission
Control Unit)
inconsistent.
Check the TCU connection
with the CAN line.
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1C8
ERROR
MESSAGE
CAN
TSC1VE
No effect perceived
by the driver.
CAN messages from
TCU (Transmission
Control Unit)
inconsistent.
Check the TCU connection
with the CAN line.
1D1
ECU
OVERRUN
MONITORIN
G ERROR
No effect perceived
by the driver.
Electrical
interference or
internal control unit
problems.
If the error persists to replace
ECU.
1D2
ECU
OVERRUN
MONITORIN
G ERROR
No effect perceived
by the driver.
Poor control
unit
programming/flash
Possible internal fault.
Reprogram the central unit. If
the error is repeated, replace
the central unit, if needed.
1D3
ECU
OVERRUN
MONITORIN
G ERROR
No effect perceived
by the driver.
Poor control
unit
programming/flash
Possible internal fault.
Reprogram the central unit. If
the error is repeated, replace
the central unit, if needed.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
1D4
ECU
OVERRUN
MONITORIN
G ERROR
No effect perceived by
the driver.
Ecu internal failure.
If the error persists to replace
ECU.
1D5
ECU
OVERRUN
MONITORING
ERROR
No effect perceived by
the driver.
Ecu internal failure.
If the error persists to replace
ECU.
1D6
ECU
INTERNAL
ERROR
(TPU)
Control unit
deactivation.
Electronic
interference or
control unit faulty.
If the error persists to replace
ECU.
1D8
ECU
OVERRUN
MONI
TORING
ERROR
No effect perceived by
the driver.
Ecu internal failure.
If the error persists to replace
ECU.
1E2
IMMOBIL
IZE
R
The engine fails to start.
Problem in CAN line
or immobiliser
control unit.
Check the Immobiliser control
unit is correctly connected.
Enter the Immobiliser PIN
code during the emergency
procedure.
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1E3
ERROR FOR
ECU
INTERNAL
MONI
TORING
No effect perceived by
the driver.
Ecu internal failure.
If the error persists to replace
ECU.
1E4
ERROR FOR
ECU
INTERNAL
MONITORIN
G
No effect perceived by
the driver.
Ecu internal failure.
If the error persists to replace
ECU.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible
Cause
Repair action
1E5 SENSORS
POWER
SUPPLY
FAULT
(12V)
No effect per
ceived by
the driver.
Excessive/insufficient
Battery voltage or
poss
ible internal
control unit problem.
Check battery voltage or
connections with
the ECM.
Replace the control
unit if
necessary.
1E6 SENSOR
POWER
SUPPLY 1
No effect per
ceived by
the driver.
Excessive/insufficient
Battery voltage or
poss
ible internal
control unit problem
Check battery voltage or
connections with
the ECM.
Replace the control
unit if
necessary.
1E7 SENSOR
POWER
SUPPLY 2
No effect per
ceived by
the driver.
Excessive/insufficient
Battery voltage or
poss
ible internal
control unit problem
Check battery voltage or
connections with
the ECM.
Check ECU, if required.
1E8 SENSOR
POWER
SUPPLY 3
No effect per
ceived by
the driver.
Excessive/insufficient
Battery voltage or
poss
ible internal
control unit problem
Check battery voltage or
connections with
the ECM.
Replace the control
unit if
necessary.
1E9 ECU
OVERRUN
MONITORIN
ERROR
No effect per
ceived by
the driver.
Excessive/insufficient
Battery voltage or
poss
ible internal
control unit problem
Check battery voltage or
connections with
the ECM.
Replace the control
unit if
necessary.
1EA ECU
OVERRUN
MONITORIN
ERROR
No effect per
ceived by
the driver.
Excessive/insufficient
Battery voltage or
poss
ible internal
control unit problem
Check battery voltage or
connections with
the ECM.
Replace the control
unit if
necessary.
1EB ATMOSPHERI
C PRESSURE
SENSOR
No effect per
ceived by
the driver.
Excessive/insufficient
Battery voltage or
poss
ible internal
control unit problem
Change ECU.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
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1FA TOO
HIGH
NUMBER OF
REGENERATI
ONS DEMAND
No reaction
per
ceivable by
the
driver.
Too many filter
regenerations carried
out.
Particulate filter
may
be blocked.
Check filter.
1FB PERMANENT
RIGENERATI
ON
ON TRAP
PARTICLE
No reaction
per
ceivable by
the
driver.
Catalytic con
verter
not installed or
dam
aged.
Check
catalytic
con
verter
visually.
1FC FIRST
SENSOR
EXAUSTED
GAS
TEMPERATUR
E
No reaction
per
ceivable by
the
driver.
Temperature sensors
damaged or
incor
rectly fitted.
Check information and
condition of sensors.
21F TOO
HIGH
EFFICIENCY
OF
CATA
LYST
SYSTEM
No reaction no
ticeable
on behalf
of the driver.
Actuator coil faulty
or not
within
specified tolerance
limits.
Check actuator condi
tion.
225
INTERRUPTE
D
AFTER
RUN
Slight power re
duction.
The control unit
is
turned off by
the
general
switch instead
of by the key (k15).
Possible prob
lem in
main relay
or
connections.
Check wiring and then
replace the main relay.
228
MAIN RELAY
–
SHORT
CIRCUIT TO
GROUND
Slight power re
duction.
Short circuit in main
relay or relay faulty.
Check wiring between
battery and ECM and then
replace the main
relay.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
232
COOLANT
TEM
PERATU
RE
SENSOR
ABSOLUTE
TEST
Slight power reduction
Extreme
envi
ronmental
conditions or
sensor incorrectly
adjusted.
Ensure the engine is working
in non-critical conditions.
Check the sensor
connections and accuracy.
Replace sensor if necessary.
238
OIL LOW
PRESSURE
Slight power reduction
Sensor incorrectly
adjusted or faults in
lubrication system.
Check the sensor
connections and accuracy.
Check the lubrication
system.
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23A
OIL
TEM
PERATU
RE
ABOVE
NORMAL
Slight power reduction
Sensor incorrectly
adjusted or faults in
lubrication system.
Check the sensor
connections and accuracy.
Check the lubrication
system.
27C
BENCH 2
INJECTORS
CHECK
(INTERNAL
ECU)
One or more injectors
(bank 1 or bank 2)
may not be operating
Fault in control unit.
Replace the engine
control unit.
292
TURBINE
ACTUATO
R
CONTROL
ELECTRO
VA
LVE SHORT
CIRCUIT TO
GROUND
Poor
perform
ance
VGT actuator or
wiring defective.
Check VGT wiring and
actuator.
2A6
TIMEOUT
OF CAN
MESSAGE
SCR2
No effect perceived
by the driver
Problem in the
Denoxtronic
(on the CAN line).
Check the faults in the
Denoxtronic and consult the
control unit troubleshooting
guide. Check wiring.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
2AF
SERIOUS
EOBD
FAULT
FROM
DENOXTRO
NIC (EOBD
FLASHING
LIGHT)
No effect perceived
by the driver.
Problems in AdBlue
dosing system.
Check the faults in the
Denoxtronic and consult the
control unit troubleshooting
guide.
2B4
TIMEOUT
CAN
MESSAGE
BC2EDC2
No effect perceived by
the driver.
CAN configuration
incorrect. CAN
connections
defective.
Terminal resistance
not suitable.
Check CAN line wiring.
Check BC wiring and
operation.
2C6
TIMEOUT
OF CAN
MESSAGE
TSC1-PE
PASSIVE
No effect perceived by
the driver.
CAN messages from
TCU (Transmission
Control Unit)
inconsistent.
Check the TCU connection
with the CAN line.
2C8
ERROR
MESSAGE
CAN
TSC1VR
No effect perceived by
the driver.
CAN messages from
TCU (Transmission
Control Unit)
inconsistent.
Check the TCU connection
with the CAN line.
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2C9
ERROR
MESSAGE
CAN
TIMEDATE
No effect perceived by
the driver.
CAN messages
from TC
(tachograph)
inconsistent.
Check the tachograph
connection with the CAN
line.
2D3
ECU
OVERRUN
MONITORIN
G ERROR
No effect perceived by
the driver.
Poor control
unit
programming/flash
Possible internal fault.
Reprogram the central unit. If
the error is repeated, replace
the central unit, if needed.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
2FF ERROR
CHECK OF
CRITICAL
TIME
FOR OIL
DILUTION
Slight power reduction
Oil overdiluted.
Change the engine oil .
392
TURBINE
ACTUATOR
CON
TROL
ELECTROVALVE
Poor performance
Connection
damaged. Battery
voltage excessive
(ECU overheating).
Check VGT connection and
actuator.
3AF SERIOUSE
OBD FAULT
FROM
DE
NOX
TRON
IC (EOBD
FLASHING
LIGHT)
No effect per
ceived
by the
driver.
Problems in Ad
Blue
dosing sys
tem.
Check the faults in the
Denoxtronic and con
sult the
control
unit troubleshooting
guide.
3C8
TIMEOUT OF
CAN
MESSAGE
TSC1-VE
PASSIVE
No effect per
ceived
by the
driver.
CAN messages from
TCU
(Transmission
Control Unit)
inconsistent.
Check the TCU con
nection
with the CAN
line.
3C9
ERROR
MESSAGE
CAN
HRDV
No effect per
ceived
by the
driver.
CAN configuration
incorrect. CAN
connec
tions
defective. Terminal
resis
tance not
suit
able.
Check CAN line wiring.
Check BC wiring and
operation.
3D3
ECU
OVERRUN
MONITORING
ERROR
No effect per
ceived
by the
driver.
Poor control unit
program
ming/flash
Possible internal
fault.
Reprogram the central
unit. If
the error is re
peated, replace
the
central unit, if needed.
DTC
FMI
Failing
component
Type of
Failure
Visible failure
Possible Cause
Repair action
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3FA
REGENERAT
ION
DEMAND
NUMBER 2
No effect perceived
by the driver.
Too many
regenerations
carried out.
Check particulate filter and
faults in sensors.
4AF
SERIOUSE
OBD FAULT
FROM
DENOXTRO
NIC (EOBD
FLASHING
LIGHT)
No effect perceived by
the driver.
Problems in AdBlue
dosing system.
Check the faults in the
Denoxtronic and consult the
control unit troubleshooting
guide.
4C8
TIMEOUT
OF CAN
MESSAGE
TSC1-VR
PASSIVE
No effect perceived by
the driver.
CAN messages from
TCU (Transmission
Control Unit)
inconsistent.
Check the TCU connection
with the CAN line.
4FA
REGENERAT
ION
DEMAND
NUMBER 3
No effect perceived by
the driver.
Too many
regenerations
carried out.
Check particulate filter and
faults in sensors.
5AF
DM1DCU
SPN5
MESSAGE
No effect perceived by
the driver.
Problems in AdBlue
dosing system.
Check the faults in the
Denoxtronic and consult the
control unit troubleshooting
guide.
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