Page 113 of 198

13B-113V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
FUEL CIRCUIT SUB-FUNCTION:
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or Status
Check or actionDisplay and notes Fault finding
Fuel temperaturePR063: Fuel temperature.
Cold = PR064
Warm: 50°CGives the fuel temperature in °C.
Default value: 30°C.In the event of a fault,
apply the fault finding
procedure for fault
DF098 "Fuel
temperature sensor
circuit".
Fuel flowPR017: Fuel flow.
10 < Cold < 2 mg/st
4 < Warm < 6 mg/stShows the fuel injected in mg/st for
each injector.NONE
Rail pressurePR038: Rail pressure.
Cold: 260 bar.
Warm: 230 barIndicates the pressure, in bar, of
the diesel fuel in the injector rail.
This pressure is supplied by the
sensor on the rail.
Default value: 2000 barIn the event of a fault
apply the fault finding
procedure for fault
DF007 "Rail pressure
sensor circuit".
Rail pressure set
pointPR008: Rail pressure
setpoint.
375 bar (Engine starting
pressure setpoint).
Cold: 260 bar.
Warm: 230 barGives the theoretical pressure
value for optimum engine
operation.NONE
Rail pressure
sensor voltage PR080: Rail pressure
sensor voltage.Shows the voltage supplied by
the computer to the rail pressure
sensor.
0.5 V (0 bar) < PR080 < 4.5 V
(1600 bar)NONE
Page 114 of 198
13B-114V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
FUEL CIRCUIT SUB-FUNCTION (continued):
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or Status
Check or actionDisplay and notes Fault finding
Engine speedPR055: Engine speed.
Cold: 900 rpm.
Warm: 805 rpm.Indicates the engine's speed of
rotation in rpm.In the event of a fault,
apply the fault finding
procedure for
DF005 "Engine speed
sensor circuit".
New pump
chamber fillingET637: New pump
chamber fillingCOMPLETEDIf NOT DONE, see
Replacement of
components.
Page 115 of 198

13B-115V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
PRE-HEATING/IGNITION SUB-FUNCTION:
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or Status
Check or actionDisplay and notes Fault finding
Coolant
temperaturePR064: Coolant
temperature.
Warm: 90°CIndicates the coolant temperature
in °C.
Default value: 80°CIn the event of a fault,
consult the
interpretation of
parameter PR064
Coolant temperature.
External air
temperaturePR061: External air
temperature.Gives the external air temperature
in °C. This parameter is controlled
by the UCH and transmitted to the
injection via the multiplex network.
Default value: 20°CIn the event of a fault,
apply the fault finding
procedure for this fault
described in the UCH
document.
Inlet air
temperature
(invalid for
K9K 728)PR059: Inlet air
temperature.
Cold = PR061
Warm: 30°CIndicates the inlet air temperature
in °C. This signal is provided by the
air temperature/pressure sensor.
Default value: 30°C.In the event of a fault,
refer to the
interpretation of
parameter PR059 Inlet
air temperature.
Battery voltage PR074: Battery voltage.12 V < PR074 < 14 VIf there is a fault, apply
the fault finding
procedure for the
"Charge circuit".
Page 116 of 198

13B-116V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
AIR CIRC. SUB-FUNCTION (TURBO/INLET):
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or Status
Check or actionDisplay and notes Fault finding
Inlet air
temperature
(invalid for
K9K 728)PR059:
Inlet air temperature.
Cold = PR061
Warm: 30°CIndicates the inlet air temperature
in °C. This signal is provided by the
air temperature/pressure sensor.
Default value: 30°C.In the event of a fault,
refer to the
interpretation of
parameter PR059 Inlet
air temperature.
Air circuit
pressure.PR035: Atmospheric
pressure.Indicates the atmospheric pressure
in mbar. The sensor is built into
the computer.If not consistent, check
that PR035 = PR032 =
local atmospheric
pressure, with the
engine stopped and the
ignition on. PR032: Inlet pressure.Indicates the pressure in the inlet
circuit in mbar.
Air flow.PR132: Air flow.
350 < Cold < 400 mg/st
300 < Cold < 350 mg/stAir flow estimated by the injection
computer.NONE
Inlet temperature
sensor voltagePR081: Inlet temperature
sensor voltage.Indicates the voltage, in volts,
delivered by the computer to
supply the inlet temperature
sensor.NONE
Engine speedPR055: Engine speed.
Cold: 900 rpm.
Warm: 805 rpmIndicates the engine's speed of
rotation in rpm.In the event of a fault,
apply the fault finding
procedure for
DF005 "Engine speed
sensor circuit".
Page 117 of 198
13B-117V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
ENGINE COOLING SUB FUNCTION:
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or Status
Check or actionDisplay and notes Fault finding
Coolant
temperaturePR064: Coolant
temperature.
Warm: 90°CIndicates the coolant
temperature in °C.
Default value: 80°CIn the event of a fault,
consult the interpretation
of parameter PR064
Coolant temperature.
Page 118 of 198

13B-118V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
DRIVER PARAMETERS SUB-FUNCTION:
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or Status
Check or actionDisplay and notes Fault finding
Accelerator pedal
positionPR030: Accelerator
pedal position.
0%.Shows the pedal position
between NO LOAD and FULL
LOAD as a percentage.
0% < PR030 < 100%In the event of a fault,
apply the fault finding
procedures for Pedal
sensor circuit gang 1 and
gang 2 (DF008 and DF009)
and DF113 Sensor supply
voltage.
Pedal
potentiometer
gang voltagesPR086: Pedal
potentiometer gang 1
voltage.
16%Shows the percentage of feed
voltage on gangs 1 and 2 of the
pedal potentiometer.In the event of a fault,
apply the fault finding
procedures for Pedal
sensor circuit gang 1 and
gang 2 (DF008 and DF009)
and DF113 Sensor supply
voltage. PR088: Pedal
potentiometer gang 2
voltage.
7%10% < PR086 < 20%
5% < PR088 < 15%
Page 119 of 198

13B-119V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
EMISSION CONTROL/OBD SUB-FUNCTION:
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or Status
Check or actionDisplay and notes Fault finding
EGR valve
controlET008: EGR valve control.
INACTIVEIndicates the EGR valve control
status.
- INACTIVE: The valve is not
controlled by the computer.
- ACTIVE: The valve is controlled by
the computer.NONE
Atmospheric
pressurePR035: Atmospheric
pressure.Indicates the atmospheric
pressure in mbar. The sensor is
built into the computer.If not consistent, check
that PR035 = PR032 =
local atmospheric
pressure, with the
engine stopped
and the ignition on.
Air flowPR132: Air flow.
350 < Cold < 400 mg/st
300 < Cold < 350 mg/stAir flow estimated by the injection
computer.NONE
Fuel flowPR017: Fuel flow.
10 < Cold < 12 mg/st
4 < Warm < 6 mg/st.Gives the fuel flow at the high
pressure pump outlet in mg/st.NONE
EGR valve
opening setpointPR005: EGR valve opening
setpoint.
Warm: 20%Gives a theoretical EGR valve
opening value for optimum engine
operation.
PR005 = PR051NONE
EGR valve
position
feedbackPR051: EGR valve position
feedback.
Warm approximately 20 %Shows the true EGR valve
position.
Default value: 30%NONE
Page 120 of 198

13B-120V4 MR-372-J84-13B000$070.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DDCR INJECTION
Vdiag No.: 44, 48
SUB-FUNCTION: ANTIPOLLUTION/OBD (cont.):
NOTESOnly check conformity after a full check with the diagnostic tool.
The values shown in this conformity check are given as examples.
Application conditions: Engine off, ignition on.
FunctionParameter or Status
Check or actionDisplay and notes Fault finding
EGR valve
position sensor
voltagePR077: EGR valve position
sensor voltage.Indicates the EGR valve voltage
according to its position.
- INACTIVE: The valve is not
controlled by the computer.
- ACTIVE: The valve is controlled
by the computer.
0.5 V < PR077 < 4.8 VNONE
Accelerator pedal
positionPR030: Accelerator pedal
position.
0%.Shows the pedal position
between NO LOAD and FULL
LOAD as a percentage.
0< PR030 < 100%In the event of a fault,
apply the fault finding
procedures for Pedal
sensor circuit gang 1 and
gang 2 (DF008 and DF009)
and DF113 Sensor supply
voltage.
Coolant
temperaturePR064: Coolant
temperature.
Warm: 90 °CIndicates the coolant
temperature in °C.
Default value: 80°CIn the event of a fault,
consult the interpretation
of parameter PR064
Coolant temperature.