2006 MERCEDES-BENZ SPRINTER oil pressure

read opposite switch states.Note: The BS and
BLS are in the same switch housing.
BRAKE LAMP SWITCH (BLS):This switch pre-
pares the CAB for a possible antilock event. The
CAB uses an output state voltage from the BLS
when the brake pedal is either depressed/released.
The Fused Ignition Switch Output circuit supplies
12 volts to the BLS. A depressed brake pedal will
close the BLS circuit and the BLS Output circuit
supplies 12 volts at the CAB. When the driver
releases the brake pedal, the BLS Output circuit
voltage drops to 0 volts and the CAB senses the
brake pedal state. This tells the CAB what position
the brake pedal is currently in to make an ABS
event possible. When using the DRBIIItin Inputs/
Outputs, the BS and BLS will read opposite switch
states.Note: The BS and BLS are in the same
switch housing.
TRACTION CONTROL SYSTEM SWITCH
(TCSS):This switch signals the CAB to either turn
ON or OFF the TCS. The driver can toggle the
TCSS, which receives 12 volts from the D (+) Relay
Output circuit. Depending on the position of the
TCSS, open or closed, the CAB receives the TCSS
state voltage on the TCS Switch Sense circuit.
When 12 volts are applied to the TCS Switch Sense
circuit, the TCS is OFF. When no voltage is present,
the TCS is ON.
WHEEL SPEED SENSORS AND TONE
WHEELS:The Bosch 5.7 system uses one passive
WSS on each wheel. The sensor measures the wheel
speed by monitoring a rotating tone wheel. As the
teeth of the tone wheel move through the magnetic
field of the sensor an AC voltage and amperage is
generated. This signal frequency increases or de-
creases proportionally to the speed of the wheel.
The CAB monitors this signal to check for a sudden
change in single or multiple wheel decelerations. If
the deceleration of one or more wheels is not within
a predetermined amount, the CAB takes control for
antilock action through the HCU. Each WSS has a
magnetic inductive pick up coil (WSS) that is
mounted to a fixed component. There is an air gap
between the tone wheel and the speed sensor as-
sembly. Diagnostically, the coils of the Wheel Speed
Sensors have the same amount of resistance. When
measured across the CAB harness connector termi-
nals, the resistance should be between 1100 - 1800
ohms. Refer to service manual for WSS replacement
and air gap specifications.
Correct ABS operation is dependent on Tone
Wheel speed signal from the WSS. The vehicle
wheels and tires should all be the same size and
type to get accurate signals. In addition, all tires
should be at recommended tire pressures.3.7.5 SELF TESTS
The system software includes several self tests
that are performed every time the ignition is turned
on and the vehicle is driven. Some of the self tests
occur immediately, while others occur under normal
driving conditions while not in antilock operation.
The CAB checks continuously for a missing or
erratic WSS signals/circuits, tone wheels, solenoids,
pump motor or solenoid relay by performing several
tests such as: dynamic, static, ohmic, voltage drop,
and timed response. If any component exhibits a
fault during testing, the CAB will request to illumi-
nate the ABS and TCS warning indicators.
As an additional check of the ESP system, a road
test procedure is available on the DRBIIIt. This
test should be carried out when any ESP component
is replaced in order to ensure proper function. Since
the wheel speed sensors are required inputs to the
ESP, this test should also be performed if the wheel
speed sensors are replaced.
First, the brakes are applied with the vehicle
stationary. Then, the vehicle is driven at approxi-
mately 6 MPH. The driver has to make left and
right turns, with a minimum 90 degree steering
turning angle. If the indicator lamp goes out, every-
thing is in order. If the lamp remains illuminated,
the DRBIIItwill display the fault codes that are
causing the test to fail. The road test function is set
in the ESP control module, and can only be deacti-
vated once there are no more fault codes detected.
The Steering Angle Sensor must be initialized. A
procedure is carried out using the DRBIIItto
ensure that the module detects the exact position of
the sensor. The sensor must be calibrated any time
wheel alignment is changed, the steering column is
removed and re-installed, or the sensor is replaced.
3.8 USING THE DRBIIIT
Refer to the DRBIIItuser 's guide for instructions
and assistance with reading diagnostic trouble
codes, erasing diagnostic trouble codes and other
DRBIIItfunctions.
3.9 DRBIIITERROR MESSAGES
Under normal operation, the DRBIIItwill dis-
play one of only two error messages:
Ð User-Requested WARM Boot or User-Requested
COLD Boot.
If the DRBIIItshould display any other error
message, record the entire display and call the
STAR Center for information and assistance. This
is a sample of such an error message display:
4
GENERAL INFORMATION

TABLE OF CONTENTS - Continued
P0100-MASS AIR FLOW SENSOR SIGNAL VOLTAGE TOO LOW...............19
P2011-MASS AIR FLOW SENSOR PLAUSIBILITY AIR MASS TOO HIGH.........19
P2011-MASS AIR FLOW SENSOR PLAUSIBILITY AIR MASS TOO LOW..........19
P2024-MASS AIR FLOW SENSOR SIGNAL VOLTAGE TOO HIGH...............19
P2024-MASS AIR FLOW SENSOR SIGNAL VOLTAGE TOO LOW...............19
P2065-MASS AIR FLOW SENSOR SUPPLY VOLTAGE TOO HIGH...............19
P2065-MASS AIR FLOW SENSOR SUPPLY VOLTAGE TOO LOW...............19
P2067-MASS AIR FLOW SENSOR SIGNAL CIRCUIT OPEN OR SHORTED.......19
P2067-MASS AIR FLOW SENSOR SIGNAL VOLTAGE TOO HIGH...............19
P2067-MASS AIR FLOW SENSOR SIGNAL VOLTAGE TOO LOW...............19
P2068-MASS AIR FLOW SENSOR PLAUSIBILITY SIGNAL RATIO ERROR........19
P2633-MAF SENSOR SIGNAL PLAUSIBILITY................................19
P0105-INTAKE PRESSURE SENSOR CAN MESSAGE ERROR.................25
P0105-INTAKE PRESSURE SENSOR PLAUSIBILITY..........................25
P0105-INTAKE PRESSURE SENSOR SIGNAL VOLTAGE TOO HIGH.............28
P0105-INTAKE PRESSURE SENSOR SIGNAL VOLTAGE TOO LOW.............31
P0110-INTAKE AIR TEMP SENSOR SIGNAL VOLTAGE TOO HIGH..............34
P2063-INTAKE AIR TEMP SENSOR CIRCUIT SIGNAL VOLTAGE TOO HIGH......34
P0110-INTAKE AIR TEMP SENSOR SIGNAL VOLTAGE TOO LOW...............37
P2063-INTAKE AIR TEMP SENSOR CIRCUIT SIGNAL VOLTAGE TOO LOW......37
P0115-ENGINE COOLANT TEMP SENSOR CIRCUIT PLAUSIBILITY.............40
P2012-ENGINE COOLANT TEMP SENSOR CIRCUIT PLAUSIBILITY.............40
P0115-ENGINE COOLANT TEMP SENSOR CIRCUIT PLAUSIBILITY WITH ENGINE
OIL SENSOR...........................................................42
P0115-ENGINE COOLANT TEMP SENSOR CIRCUIT SIGNAL VOLTAGE TOO
HIGH.................................................................44
P2054-ENGINE COOLANT TEMP SENSOR CIRCUIT SIGNAL VOLTAGE TOO
HIGH.................................................................44
P2054-ENGINE COOLANT TEMP SENSOR CIRCUIT SIGNAL VOLTAGE TOO
LOW..................................................................44
P0115-ENGINE COOLANT TEMP SENSOR CIRCUIT SIGNAL VOLTAGE TOO
LOW..................................................................47
P0180-FUEL TEMPERATURE SENSOR CIRCUIT - SIGNAL VOLTAGE TOO HIGH. .49
P0180-FUEL TEMPERATURE SENSOR CIRCUIT - SIGNAL VOLTAGE TOO LOW . .51
P2625-FUEL TEMPERATURE SENSOR PLAUSIBILITY........................51
P0190-FUEL PRESS SENSOR CIRCUIT MALF SIGNAL VOLTAGE TOO HIGH.....53
P2008-FUEL PRESSURE SENSOR CIRCUIT SIGNAL VOLTAGE TOO HIGH......53
P0190-FUEL PRESS SENSOR CIRCUIT MALF SIGNAL VOLTAGE TOO LOW.....57
P2008-FUEL PRESSURE SENSOR CIRCUIT SIGNAL VOLTAGE TOO LOW.......57
P0201-CYLINDER 1-INJECTOR CIRCUIT EXCESSIVE CURRENT...............60
P0201-CYLINDER 1-INJECTOR CIRCUIT OPEN OR SHORTED TO GROUND.....60
P0201-CYLINDER 1-INJECTOR CIRCUIT SHORTED TO GROUND..............60
P0201-CYLINDER 1-INJECTOR CIRCUIT SHORTED TO VOLTAGE..............60
P0202-CYLINDER 2-INJECTOR CIRCUIT EXCESSIVE CURRENT...............60
P0202-CYLINDER 2-INJECTOR CIRCUIT OPEN OR SHORTED TO GROUND.....60
P0202-CYLINDER 2-INJECTOR CIRCUIT SHORTED TO GROUND..............60
P0202-CYLINDER 2-INJECTOR CIRCUIT SHORTED TO VOLTAGE..............60
P0203-CYLINDER 3-INJECTOR CIRCUIT EXCESSIVE CURRENT...............60
P0203-CYLINDER 3-INJECTOR CIRCUIT OPEN OR SHORTED TO GROUND.....60
P0203-CYLINDER 3-INJECTOR CIRCUIT SHORTED TO GROUND..............60
P0203-CYLINDER 3-INJECTOR CIRCUIT SHORTED TO VOLTAGE..............60
P0204-CYLINDER 4-INJECTOR CIRCUIT EXCESSIVE CURRENT...............60
P0204-CYLINDER 4-INJECTOR CIRCUIT OPEN OR SHORTED TO GROUND.....60
iii

TABLE OF CONTENTS - Continued
P2013-AMBIENT AIR TEMPERATURE SIGNAL VOLTAGE TOO HIGH...........112
P2013-AMBIENT AIR TEMPERATURE SIGNAL VOLTAGE TOO LOW............112
P2014-ENGINE OIL SENSOR OIL TEMPERATURE PLAUSIBILITY..............113
P2014-ENGINE OIL SENSOR SIGNAL PLAUSIBILITY........................113
P2014-ENGINE OIL SENSOR SIGNAL VOLTAGE IS TOO HIGH................113
P2014-ENGINE OIL SENSOR SIGNAL VOLTAGE IS TOO LOW................113
P2040-ENGINE OIL SENSOR CIRCUIT INVALID LEVEL......................113
P2040-ENGINE OIL SENSOR CIRCUIT LEVEL OUT OF RANGE...............113
P2040-ENGINE OIL SENSOR CIRCUIT LEVEL OUT OF RANGE...............113
P2041-ENGINE OIL SENSOR POOR OIL QUALITY..........................113
P2041-ENGINE OIL SENSOR QUALITY MEASUREMENT ERROR..............113
P2041-ENGINE OIL SENSOR QUALITY PLAUSIBILITY.......................113
P2042-ENGINE OIL SENSOR WATER CONTAMINATION......................113
P2061-ENGINE OIL SENSOR OPEN CIRCUIT..............................113
P2062-ENGINE OIL SENSOR SIGNAL ERROR..............................113
P2062-ENGINE OIL SENSOR SYNCHRONIZATION ERROR...................113
P2015-FUEL RAIL PRESSURE MALFUNCTION MAXIMUM FUEL FLOW
EXCEEDED...........................................................117
P2016-FUEL RAIL PRESSURE MALFUNCTION DECELERATION ERROR.......117
P2016-FUEL RAIL PRESSURE MALFUNCTION FUEL FLOW BELOW MINIMUM
QUANTITY............................................................117
P2017-FUEL RAIL PRESSURE MALFUNCTION RAIL PRESSURE IS TOO LOW . .117
P2018-FUEL RAIL PRESSURE MALFUNCTION RAIL PRESSURE IS TOO HIGH . .117
P2019-FUEL RAIL PRESSURE MALFUNCTION MAXIMUM FUEL PRESSURE
EXCEEDED...........................................................117
P2019-FUEL RAIL PRESSURE MALFUNCTION RAIL PRESSURE IS TOO LOW . .117
P2020-FUEL RAIL PRESSURE MALFUNCTION RAIL PRESSURE IS TOO LOW . .117
P2020-FUEL RAIL PRESSURE MALFUNCTION RAIL PRESSURE TOO HIGH....117
P2021-FUEL RAIL PRESSURE MALFUNCTION RAIL PRESSURE TOO LOW.....117
P2023-FUEL RAIL PRESSURE MALFUNCTION RAIL PRESSURE TOO HIGH....117
P2047-FUEL RAIL PRESSURE MALFUNCTION MAXIMUM FUEL PRESSURE
EXCEEDED...........................................................117
P2049-FUEL RAIL PRESSURE MALFUNCTION DECELERATION ERROR.......117
P2051-FUEL RAIL PRESSURE MALFUNCTION MAXIMUM FUEL PRESSURE
EXCEEDED...........................................................117
P2052-FUEL RAIL PRESSURE MALFUNCTION PLAUSIBILITY WITH FUEL
PRESSURE SOLENOID.................................................117
P2025-INTAKE PRESSURE SENSOR PLAUSIBILITY.........................125
P2025-INTAKE PRESSURE SENSOR SIGNAL VOLTAGE TOO HIGH............128
P2030-INTAKE PRESSURE SENSOR CIRCUIT FAULT.......................128
P2030-INTAKE PRESSURE SENSOR OPEN CIRCUIT........................128
P2030-INTAKE PRESSURE SENSOR SIGNAL VOLTAGE TOO HIGH............128
P2025-INTAKE PRESSURE SENSOR SIGNAL VOLTAGE TOO LOW............131
P2030-INTAKE PRESSURE SENSOR SIGNAL VOLTAGE TOO LOW............131
P2026-O2 SENSOR CIRCUIT FAULT......................................134
P2026-O2 SENSOR CIRCUIT OPEN CIRCUIT..............................134
P2026-O2 SENSOR CIRCUIT SIGNAL VOLTAGE TOO HIGH..................134
P2026-O2 SENSOR CIRCUIT SIGNAL VOLTAGE TOO LOW...................134
P2028-O2 SENSOR CIRCUIT FAULT......................................134
P2028-O2 SENSOR CIRCUIT OPEN CIRCUIT..............................134
P2028-O2 SENSOR CIRCUIT SIGNAL VOLTAGE TOO HIGH..................134
P2028-O2 SENSOR CIRCUIT SIGNAL VOLTAGE TOO LOW...................134
P2032-O2 SENSOR PLAUSIBILITY.......................................134
vi

TABLE OF CONTENTS - Continued
P2032-O2 SENSOR PLAUSIBILITY.......................................134
P2032-O2 SENSOR PLAUSIBILITY.......................................134
P2057-O2 SENSOR SIGNAL CIRCUIT SIGNAL VOLTAGE TOO HIGH...........134
P2058-O2 SENSOR SIGNAL CIRCUIT SIGNAL VOLTAGE TOO HIGH...........134
P2059-O2 SENSOR SIGNAL CIRCUIT SIGNAL VOLTAGE TOO HIGH...........134
P2090-O2 SENSOR PLAUSIBILITY.......................................134
P2090-O2 SENSOR SIGNAL FAULT.......................................134
P2091-O2 SENSOR LOW O2 CONCENTRATION............................134
P2091-O2 SENSOR SIGNAL PLAUSIBILITY................................134
P2195-O2 SENSOR HEATER CIRCUIT FAULT..............................134
P2353-O2 SENSOR PLAUSIBILITY.......................................134
P2366-O2 CIRCUIT FAULT..............................................134
P2034-O2 SENSOR CIRCUIT CALIBRATION VALUE TOO HIGH...............138
P2034-O2 SENSOR CIRCUIT CALIBRATION VALUE TOO LOW................138
P2036-O2 SENSOR CIRCUIT CALIBRATION VALUE TOO HIGH...............138
P2036-O2 SENSOR CIRCUIT CALIBRATION VALUE TOO LOW................138
P2038-O2 SENSOR CIRCUIT CALIBRATION VALUE TOO HIGH...............138
P2038-O2 SENSOR CIRCUIT CALIBRATION VALUE TOO LOW................138
P2043-CAMSHAFT POSITION SENSOR CIRCUIT OPEN CIRCUIT.............140
P2043-CAMSHAFT POSITION SENSOR CIRCUIT OPEN OR SHORT CIRCUIT . . .140
P2045-CRANKSHAFT POSITION SENSOR CIRCUIT LOST SIGNAL............146
P2045-CRANKSHAFT POSITION SENSOR CIRCUIT SIGNAL PLAUSIBILITY.....146
P2322-CRANKSHAFT POSITION SENSOR PLAUSIBILITY....................146
P2343-CKP PLAUSIBILITY...............................................146
P2062-ENGINE OIL SENSOR MONITORING ERROR........................149
P2066-MASS AIR FLOW SENSOR PLAUSIBILITY...........................150
P2355-EGR FLOW RATE IS TOO HIGH....................................150
P2355-EGR FLOW RATE IS TOO LOW....................................150
P2066-MASS AIR FLOW SENSOR PLAUSIBILITY AIR MASS TOO HIGH........153
P2066-MASS AIR FLOW SENSOR PLAUSIBILITY AIR MASS TOO LOW.........153
P2087-INTAKE PRESSURE SENSOR INTAKE RESTRICTION.................156
P2100-FUEL PUMP RELAY CIRCUIT OPEN CIRCUIT........................157
P2100-FUEL PUMP RELAY CIRCUIT SHORTED TO GROUND.................157
P2100-FUEL PUMP RELAY CIRCUIT SHORTED TO VOLTAGE................159
P2100-FUEL PUMP RELAY EXCESSIVE CURRENT..........................159
P2104-STARTER RELAY CIRCUIT SHORT CIRCUIT.........................161
P2152-STARTER RELAY CIRCUIT SHORT TO GROUND.....................161
P2153-STARTER RELAY CIRCUIT OPEN OR SHORTED TO VOLTAGE.........161
P2110-BOOST PRESSURE SERVO MOTOR CIRCUIT SHORT CIRCUIT.........164
P2112-BOOST PRESSURE SERVO MOTOR CIRCUIT EXCESSIVE CURRENT . . .164
P2526-BOOST PRESSURE SERVO MOTOR SHORT TO VOLTAGE.............164
P2111-BOOST PRESSURE SERVO MOTOR CIRCUIT SHORT TO GROUND.....167
P2112-BOOST PRESSURE SERVO MOTOR CIRCUIT OPEN CIRCUIT..........167
P2510-BOOST PRESSURE SERVO MOTOR SHORT TO GROUND.............167
P2526-BOOST PRESSURE SERVO MOTOR OPEN CIRCUIT..................167
P2526-BOOST PRESSURE SERVO MOTOR SHORT TO GROUND.............167
P2132-GLOW PLUG CONTROL MODULE CIRCUIT OPEN CIRCUIT............171
P2132-GLOW PLUG CONTROL MODULE CIRCUIT SHORTED TO GROUND. . . .171
P2132-GLOW PLUG CONTROL MODULE CIRCUIT SHORTED TO VOLTAGE OR
OPEN................................................................171
P2132-GLOW PLUG CONTROL MODULE FAULT............................171
P2151-FUEL PRESS SOLENOID SIGNAL PLAUSIBILITY HIGH................173
P2151-FUEL PRESS SOLENOID SIGNAL PLAUSIBILITY LOW.................173
vii

TABLE OF CONTENTS - Continued
*CHECKING THE FUEL PRESSURE SOLENOID CIRCUITS...................233
*CHECKING THE FUEL QUANTITY SOLENOID CIRCUITS....................234
*CHECKING THE POWER AND GROUNDS................................235
*ENGINE CRANKS BUT WILL NOT START.................................239
*ENGINE WILL NOT CRANK.............................................242
VERIFICATION TESTS
VERIFICATION TESTS..................................................246
8.0 COMPONENT LOCATIONS..............................................249
8.1CONTROL MODULES.............................................249
8.2CONTROLS AND SOLENOIDS......................................249
8.3DATA LINK CONNECTOR..........................................250
8.4SENSORS.......................................................251
8.5SWITCHES......................................................253
9.0 CONNECTOR PINOUTS................................................255
ACCELERATOR PEDAL POSITION SENSOR (OBD).........................255
AIRBAG CONTROL MODULE - YELLOW...................................255
BOOST PRESSURE SENSOR (OBD)......................................255
BOOST PRESSURE SERVOMOTOR (OBD)................................256
CAMSHAFT POSITION SENSOR - BLACK.................................256
CONTROLLER ANTILOCK BRAKE........................................257
CRANKCASE HEATER - BLACK..........................................257
CRANKSHAFT POSITION SENSOR - BLACK...............................258
DATA LINK CONNECTOR - BLACK........................................258
EGR VALVE - BLACK...................................................258
ENGINE CONTROL MODULE C1 (OBD)...................................259
ENGINE CONTROL MODULE C2 (OBD)...................................260
ENGINE COOLANT TEMPERATURE SENSOR - BLACK......................260
ENGINE OIL SENSOR - BLACK..........................................261
FUEL INJECTOR NO. 1 - BLACK.........................................261
FUEL INJECTOR NO. 2 - BLACK.........................................261
FUEL INJECTOR NO. 3 - BLACK.........................................261
FUEL INJECTOR NO. 4 - BLACK.........................................262
FUEL INJECTOR NO. 5 - BLACK.........................................262
FUEL PRESSURE SENSOR - BLACK.....................................262
FUEL PRESSURE SOLENOID............................................262
FUEL PUMP (OBD).....................................................262
FUEL PUMP RELAY (OBD)..............................................263
FUEL QUANTITY CONTROL VALVE (OBD).................................263
FUEL TEMPERATURE SENSOR..........................................263
ENGINE CONTROL RELAY (FUSE BLOCK NO. 1)...........................265
FUSES (FUSE BLOCK NO. 1)............................................265
FUSES (FUSE BLOCK NO. 2)............................................267
FUSES (FUSE/RELAY BLOCK)...........................................269
STARTER MOTOR RELAY (FUSE/RELAY BLOCK)...........................269
GLOW PLUG CONTROL MODULE C1 - BLACK.............................270
GLOW PLUG CONTROL MODULE C2 - BLACK.............................270
INTAKE AIR PRESSURE SENSOR (OBD)..................................270
INTAKE AIR TEMPERATURE SENSOR - BLACK............................270
x

ecm internal error 3
ecm internal error 4
ecm internal error 4
ecm internal error 5
ecm internal fault
ecm invalid coding
ecm invalid data
ecm read error
ecm read/write error
ecm supply voltage too low
ecm voltage supply is too high
ecm voltage supply is too low
ecm write error
egr flow rate is too high
egr flow rate is too low
egr valve excessive current
egr valve signal circuit open circuit
egr valve signal circuit shorted to ground
egr valve signal circuit shorted to ground
egr valve signal circuit shorted to voltage
engine control relay plausibility
engine control relay shuts off too early
engine control relay shuts off too late
engine coolant temp sensor circuit plausibility
engine coolant temp sensor circuit plausibility
engine coolant temp sensor circuit plausibility with
engine oil sensor
engine coolant temp sensor circuit signal voltage too
high
engine coolant temp sensor circuit signal voltage too
high
engine coolant temp sensor circuit signal voltage too
low
engine coolant temp sensor circuit signal voltage too
low
*engine cranks but will not start
engine oil sensor circuit invalid level
engine oil sensor circuit level out of range
engine oil sensor circuit level out of range
engine oil sensor monitoring error
engine oil sensor oil temperature plausibility
engine oil sensor open circuit
engine oil sensor poor oil quality
engine oil sensor quality measurement error
engine oil sensor quality plausibility
engine oil sensor signal error
engine oil sensor signal plausibility
engine oil sensor signal voltage is too high
engine oil sensor signal voltage is too low
engine oil sensor synchronization error
engine oil sensor water contamination
*engine will not crank
esm can message missing or incorrect
etc can message missing or incorrect
fuel injector 1 read too large
fuel injector 1 read too large
fuel injector 1 read too small
fuel injector 1 read too smallfuel injector 2 read too large
fuel injector 2 read too large
fuel injector 2 read too small
fuel injector 2 read too small
fuel injector 3 read too large
fuel injector 3 read too large
fuel injector 3 read too small
fuel injector 3 read too small
fuel injector 4 read too large
fuel injector 4 read too large
fuel injector 4 read too small
fuel injector 4 read too small
fuel injector 5 read too large
fuel injector 5 read too large
fuel injector 5 read too small
fuel injector 5 read too small
fuel press sensor circuit malf signal voltage too high
fuel press sensor circuit malf signal voltage too low
fuel press solenoid signal plausibility high
fuel press solenoid signal plausibility low
fuel pressure sensor circuit signal voltage too high
fuel pressure sensor circuit signal voltage too low
fuel pressure solenoid circuit excessive current
fuel pressure solenoid circuit open circuit
fuel pressure solenoid circuit shorted to ground or
b+
fuel pump relay circuit open circuit
fuel pump relay circuit shorted to ground
fuel pump relay circuit shorted to voltage
fuel pump relay excessive current
fuel quantity solenoid ecm thermal overload
fuel quantity solenoid open circuit
fuel quantity solenoid short to ground
fuel quantity solenoid short to ground
fuel quantity solenoid short to voltage
fuel rail pressure malfunction deceleration error
fuel rail pressure malfunction deceleration error
fuel rail pressure malfunction fuel flow below min-
imum quantity
fuel rail pressure malfunction maximum fuel flow
exceeded
fuel rail pressure malfunction maximum fuel pres-
sure exceeded
fuel rail pressure malfunction maximum fuel pres-
sure exceeded
fuel rail pressure malfunction maximum fuel pres-
sure exceeded
fuel rail pressure malfunction plausibility with fuel
pressure solenoid
fuel rail pressure malfunction rail pressure is too
high
fuel rail pressure malfunction rail pressure is too
low
fuel rail pressure malfunction rail pressure is too
low
fuel rail pressure malfunction rail pressure is too
low
fuel rail pressure malfunction rail pressure too high
5
GENERAL INFORMATION

ohmmeter
voltmeter
jumper wires and probes
oscilloscope
6.0 GLOSSARY OF TERMS
A/Cair conditioning
APPaccelerator pedal position (sensor)
BCMbody control module
BPboost pressure (sensor)
CKPcrankshaft position (sensor)
CMPcamshaft position (sensor)
CTMcentral timer module
DLCdata link connector
ECMengine control module
ECTengine coolant temperature (sensor)
EGRexhaust gas recirculation (solenoid/
valve)
EOSengine oil sensor
IATintake air temperature (sensor)
IPintake pressure sensorMAFmass air flow (sensor)
MILmalfunction indicator lamp
msmillisecond(s)
O2oxygen sensor
PDCpower distribution center
S/Cspeed control
SKREEMsentry key remote entry module
SRCsignal range check
WIFwater in fuel (sensor)
10
GENERAL INFORMATION

Symptom List:
P0105-INTAKE PRESSURE SENSOR CAN MESSAGE ERROR
P0105-INTAKE PRESSURE SENSOR PLAUSIBILITY
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P0105-INTAKE PRESSURE
SENSOR CAN MESSAGE ERROR.
POSSIBLE CAUSES
AIR FILTER
AIR RESTRICTION
INTERMITTENT CONDITION
CAN BUS COMMUNICATION DTCS
HIGH RESISTANCE IN THE INTAKE PRESSURE SENSOR SIGNAL CIRCUIT
HIGH RESISTANCE IN THE INTAKE PRESSURE SENSOR GROUND CIRCUIT
CAN BUS CIRCUITS OPEN TO THE SHIFTER MODULE
HIGH RESISTANCE IN THE INTAKE PRESSURE SENSOR 5-VOLT SUPPLY CIRCUIT
ENGINE CONTROL MODULE
TEST ACTION APPLICABILITY
1NOTE: If DTC P1611, P2306 or P2332 is present with this DTC, diagnose
DTCs P1611, P2306 or P2332 before diagnosing this DTC.
NOTE: If the ECM detects and stores a DTC, the ECM also stores the
engine/vehicle operating conditions under which the DTC was set. Some of
these conditions are displayed on the DRB at the same time the DTC is
displayed.
NOTE: Before erasing stored DTCs, record these conditions. Attempting to
duplicate these conditions may assist when checking for an active DTC.
Turn the ignition on.
With the DRB, erase ECM DTCs.
Turn the ignition off, wait 30 seconds.
Test drive the vehicle.
With the DRB, read ECM DTCs.
Did this DTC set again?All
Ye s!Go To 2
No!Go To 9
2 Turn the ignition off.
Remove and inspect the Air Filter for soiling or excessive dirt and debris which may
cause air flow restriction.
Were any of these problems found?All
Ye s!Replace the Air Filter element.
Perform ROAD TEST VERIFICATION - VER-2.
No!Go To 3
25
DRIVEABILITY - DIESEL