fuel consumption MERCEDES-BENZ SPRINTER 2006 Service Manual

TABLE OF CONTENTS - Continued
P2500-FUEL PRESSURE SOLENOID CIRCUIT OPEN CIRCUIT................173
P2501-FUEL PRESSURE SOLENOID CIRCUIT SHORTED TO GROUND OR B+ . .173
P2197-FUEL QUANTITY SOLENOID OPEN CIRCUIT.........................177
P2198-FUEL QUANTITY SOLENOID SHORT TO VOLTAGE...................177
P2199-FUEL QUANTITY SOLENOID SHORT TO GROUND....................177
P2502-FUEL QUANTITY SOLENOID SHORT TO GROUND....................177
P2203-TORQUE REDUCTION MESSAGE FROM ABS - CAN PLAUSIBILITY.....180
P2203-TORQUE REDUCTION MESSAGE FROM ABS - MESSAGE ERROR......180
P2203-TORQUE REDUCTION MESSAGE FROM ABS - MESSAGES MISSING . . .180
P2203-TORQUE REDUCTION MESSAGE FROM ABS - NO COMMUNIOCATION .180
P2203-TORQUE REDUCTION MESSAGE FROM ABS - PLAUSIBILITY #1.......180
P2203-TORQUE REDUCTION MESSAGE FROM ABS PLAUSIBILITY #2.........180
P2208-ABS BRAKE SIGNAL CAN MESSAGE IMPLAUSIBLE..................180
P2208-ABS CAN BRAKE SIGNAL PLAUSIBILITY............................180
P2209-ABS CAN MESSAGE MISSING OR INCORRECT......................180
P2253-STEERING ANGLE SENSOR PLAUSIBILITY..........................180
P2204-TORQUE REDUCTION MESSAGE FROM TCM - CAN PLAUSIBILITY.....182
P2204-TORQUE REDUCTION MESSAGE FROM TCM - ENGINE STOP.........182
P2204-TORQUE REDUCTION MESSAGE FROM TCM - MESSAGE ERROR.....182
P2204-TORQUE REDUCTION MESSAGE FROM TCM - MESSAGES MISSING . . .182
P2204-TORQUE REDUCTION MESSAGE FROM TCM - PLAUSIBILITY..........182
P2204-TORQUE REDUCTION MESSAGE FROM TCM - TCM DTC #1...........182
P2204-TORQUE REDUCTION MESSAGE FROM TCM - TCM DTC #2...........182
P2210-ESM CAN MESSAGE MISSING OR INCORRECT......................184
P2234-ABS DTC EXTERNAL QUANTITY CONTROL FAULT PRESENT..........184
P2252-LATERAL ACCELERATOR SENSOR PLAUSIBILTY.....................184
P2211-ETC CAN MESSAGE MISSING OR INCORRECT......................186
P2258-TCM MESSAGE ERROR..........................................186
P2258-TCM NO CAN MESSAGE..........................................186
P2217-TCM DTC INTERNAL FAULT PRESENT..............................188
P2218-TCM DTC 1-2 AND 4-5 SHIFT SOLENOID FAULT PRESENT............188
P2219-TCM DTC 2-3 SHIFT SOLENOID FAULT PRESENT....................188
P2220-TCM DTC 3-4 SHIFT SOLENOID FAULT PRESENT....................188
P2221-TCM DTC TORQUE CONVERTER CLUTCH SOLENOID FAULT PRESENT .188
P2222-TCM DTC MODULATING PRESSURE SOLENOID FAULT PRESENT......188
P2223-TCM DTC SHIFT PRESSURE SOLENOID FAULT PRESENT.............188
P2224-TCM DTC VALVE VOLTAGE SUPPLY FAULT PRESENT................188
P2225-TCM DTC SPEED SENSOR VOLTAGE FAULT PRESENT...............188
P2226-TCM DTC EWM CAN MESSAGE FAULT PRESENT....................188
P2227-TCM DTC RIGHT REAR WHEEL SPEED IMPLAUSIBLE FAULT PRESENT .188
P2228-TCM DTC TRANSMISSION RATIO ERROR FAULT PRESENT...........188
P2229-TCM DTC CAN MSG IMPLAUSIBLE FAULT PRESENT.................188
P2230-TCM DTC TCC EXCESSIVE POWER CONSUMPTION FAULT PRESENT . .188
P2231-TCM DTC NOT UNEQUIVOCAL FAULT PRESENT.....................188
P2232-TCM DTC NEGATIVE GEAR COMPARISON FAULT PRESENT...........188
P2240-ABS STEERING ANGLE SENSOR CAN MESSAGE IMPLAUSIBLE 1......190
P2240-ABS STEERING ANGLE SENSOR CAN MESSAGE IMPLAUSIBLE 2......190
P2242-ABS BRAKE MESSAGE PLAUSIBILITY 1.............................192
P2242-ABS BRAKE MESSAGE PLAUSIBILITY 2.............................192
P2244-INSTRUMENT CLUSTER MESSAGE PLAUSIBILITY...................194
P2259-TORQUE REDUCTION MESSAGE FROM HVAC- PARITY ERROR........196
P2259-TORQUE REDUCTION MESSAGE FROM HVAC- SWITCH SIGNAL
ERROR..............................................................196
viii

small
mass air flow sensor positive deviation
mass air flow sensor signal circuit open or shorted
mass air flow sensor signal voltage too high
mass air flow sensor signal voltage too high
mass air flow sensor signal voltage too low
mass air flow sensor signal voltage too low
mass air flow sensor signal voltage too low
mass air flow sensor signal voltage too low
mass air flow sensor supply voltage too high
mass air flow sensor supply voltage too low
misfire cylinder #1
misfire cylinder #1
misfire cylinder #2
misfire cylinder #2
misfire cylinder #3
misfire cylinder #3
misfire cylinder #4
misfire cylinder #4
misfire cylinder #5
misfire cylinder #5
misfire detected
no message received from skreem
o2 circuit fault
o2 sensor circuit calibration value too high
o2 sensor circuit calibration value too high
o2 sensor circuit calibration value too high
o2 sensor circuit calibration value too low
o2 sensor circuit calibration value too low
o2 sensor circuit calibration value too low
o2 sensor circuit fault
o2 sensor circuit fault
o2 sensor circuit open circuit
o2 sensor circuit open circuit
o2 sensor circuit signal voltage too high
o2 sensor circuit signal voltage too high
o2 sensor circuit signal voltage too low
o2 sensor circuit signal voltage too low
o2 sensor heater circuit fault
o2 sensor low o2 concentration
o2 sensor plausibility
o2 sensor plausibility
o2 sensor plausibility
o2 sensor plausibility
o2 sensor plausibility
o2 sensor signal circuit signal voltage too high
o2 sensor signal circuit signal voltage too high
o2 sensor signal circuit signal voltage too high
o2 sensor signal fault
o2 sensor signal plausibility
s/c excessive acceleration
s/c excessive deceleration
s/c vehicle speed plausibility
sensor supply 1 voltage is too high
sensor supply 1 voltage is too low
sensor supply 2 voltage is too high
sensor supply 2 voltage is too low
sensor supply 3 voltage is too highsensor supply 3 voltage is too low
starter relay circuit ecm thermal overload
starter relay circuit open or shorted to voltage
starter relay circuit short circuit
starter relay circuit short to ground
steering angle sensor plausibility
tcm dtc 1-2 and 4-5 shift solenoid fault present
tcm dtc 2-3 shift solenoid fault present
tcm dtc 3-4 shift solenoid fault present
tcm dtc can msg implausible fault present
tcm dtc ewm can message fault present
tcm dtc internal fault present
tcm dtc modulating pressure solenoid fault present
tcm dtc negative gear comparison fault present
tcm dtc not unequivocal fault present
tcm dtc right rear wheel speed implausible fault
present
tcm dtc shift pressure solenoid fault present
tcm dtc speed sensor voltage fault present
tcm dtc tcc excessive power consumption fault
present
tcm dtc torque converter clutch solenoid fault
present
tcm dtc transmission ratio error fault present
tcm dtc valve voltage supply fault present
tcm message error
tcm no can message
torque reduction message from abs -can plausibility
torque reduction message from abs -message error
torque reduction message from abs -messages miss-
ing
torque reduction message from abs -no communica-
tion
torque reduction message from abs -plausibility #1
torque reduction message from abs plausibility #2
torque reduction message from hvac switch signal
plausibility
torque reduction message from hvac-parity error
torque reduction message from hvac-switch signal
error
torque reduction message from tcm -can plausibil-
ity
torque reduction message from tcm -engine stop
torque reduction message from tcm -message error
torque reduction message from tcm -messages miss-
ing
torque reduction message from tcm -plausibility
torque reduction message from tcm -tcm dtc #1
torque reduction message from tcm -tcm dtc #2
water in fuel sensor signal error
water in fuel sensor -water in fuel
wheel speed sensor plaus -can bus message from
abs
write error to eeprom
7
GENERAL INFORMATION

New software has been loaded to the ECM for EGR
control. This is due to the wider operating range and
larger volume of recirculated gas. There is a consid-
erable number of new, adapted, and optimized func-
tions, particularly with regard to injection, EGR,
boost control, sensing of the input parameters and
the signaling of the actuators (Fig. 3).
²The rail pressure control achieved by signaling
the quantity control valve in the high pressure pump
and the pressure regulator results in reduced power
consumption of high pressure pump and in lowering
fuel pressures
²Individual cylinder torque control for smooth
engine running: using the crankshaft position sensor
signals, the ECM detect non-uniform engine running
results from uneven torque contributions of the indi-
vidual cylinders and adjust the injection quantities of
the individual injectors so that all cylinders make the
same torque contribution
²A relay is used for activating the electric in-tank
fuel pump
²Heated crankcase ventilation to ensure pressure
compensation even at low temperatures
²Improved boost pressure control using an elec-
tric variable nozzle turbine actuator with position
feed back
²Controlled fuel heating using the high pressure
pump closed-loop control
²Translation of the drive input received from the
accelerator pedal module which is equipped with
dual hall sensors²Measurement of the intake air mass using new
mass air flow (MAF) sensor with increase precision
and extended measuring range
²O2 sensor for measuring the amount of oxygen
in the exhaust in order to calculate the air to fuel
ratio. With the intake air mass being known, the
injected fuel quantity can be calculated from the air
to fuel ratio
²Activation of the O2 sensor heater to burn off
deposits
²Full load EGR with a more precise, model based
EGR closed-loop control. The ECM calculates the
EGR rate from the various sensor signals. Using the
calculate EGR rate in percent instead of the fresh air
mass flow as a control parameter enables a more pre-
cise control of the EGR rate as well as better correc-
tion of the target value.
The oxygen sensor signal can be used in combina-
tion with the mass air flow signal, the injection
quantity signal and pressure and temperature sig-
nals to perform the following functions for optimized
closed loop control and monitoring of emissions
related components:
²Injection valve quantity drift compensation in
partial load range: the oxygen content in the exhaust
is calculated from the air mass and from injection
quantity signal and is compared to the air-fuel ratio
as measured by the sensor. If the calculated air-fuel
ratio differs from the measured air-fuel ratio, the is
no correction of the injection quantity but the EGR
Fig. 3 ECM CONTROL
VAELECTRONIC CONTROL MODULES 8E - 5

AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION
DESCRIPTION
The NAG1 automatic transmission (Fig. 1) is an
electronically controlled 5-speed transmission with a
lock-up clutch in the torque converter. The ratios for
the gear stages are obtained by 3 planetary gear sets.
Fifth gear is designed as an overdrive with a high-
speed ratio.
NAG1 identifies a family of transmissions and
means ªNºew ªAºutomatic ªGºearbox, generation 1.
Various marketing names are associated with the
NAG1 family of transmissions, depending on the
transmisson variation being used in a specific vehi-
cle. Some examples of the marketing names are:
W5A300, W5A380, and W5A580. The marketing
name can be interpreted as follows:
²W = A transmission using a hydraulic torque
converter.
²5 = 5 forward gears.
²A = Automatic Transmission.²580 = Maximum input torque capacity in New-
ton meters.
The gears are actuated electronically/hydraulically.
The gears are shifted by means of an appropriate
combination of three multi-disc holding clutches,
three multi-disc driving clutches, and two freewheel-
ing clutches.
Electronic transmission control enables precise
adaptation of pressures to the respective operating
conditions and to the engine output during the shift
phase which results in a significant improvement in
shift quality.
Furthermore, it offers the advantage of a flexible
adaptation to various vehicle and engines.
Basically, the automatic transmission with elec-
tronic control offers the following advantages:
²Reduces fuel consumption.
²Improved shift comfort.
²More favourable step-up through the five gears.
Fig. 1 NAG1 Automatic Transmission
1 - TORQUE CONVERTER 11 - PARKING LOCK GEAR
2 - OIL PUMP 12 - INTERMEDIATE SHAFT
3 - DRIVESHAFT 13 - FREEWHEEL F2
4 - MULTI-DISC HOLDING CLUTCH B1 14 - REAR PLANETARY GEAR SET
5 - DRIVING CLUTCH K1 15 - CENTER PLANETARY GEAR SET
6 - DRIVING CLUTCH K2 16 - ELECTROHYDRAULIC CONTROL UNIT
7 - MULTI-DISC HOLDING CLUTCH B3 17 - FRONT PLANETARY GEAR SET
8 - DRIVING CLUTCH K3 18 - FREEWHEEL F1
9 - MULTI-DISC HOLDING CLUTCH B2 19 - STATOR SHAFT
10 - OUTPUT SHAFT 20 - TORQUE CONVERTER LOCK-UP CLUTCH
VAAUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION 21 - 3