2006 MERCEDES-BENZ SPRINTER oil temperature

General Information Section or in the service man-
ual procedures. Following these procedures is very
important to the safety of the individuals perform-
ing diagnostic tests.
4.2.2 VEHICLE PREPARATION FOR
TESTING
Make sure the vehicle being tested has a fully
charged battery. If it does not, false diagnostic codes
or error messages may occur.
4.2.3 SERVICING SUB-ASSEMBLIES
Some components of the body system are in-
tended to be serviced as an assembly only. Attempt-
ing to remove or repair certain system subcompo-
nents may result in personal injury and/or
improper system operation. Only those components
with approved repair and installation procedures in
the service manual should be serviced.
4.2.4 DRBIIITSAFETY INFORMATION
WARNING: EXCEEDING THE LIMITS OF THE
DRBIIITMULTIMETER IS DANGEROUS.
READ ALL DRBIIITINSTRUCTIONS BEFORE
USING THE MULTIMETER. FAILURE TO
FOLLOW THESE INSTRUCTIONS CAN
RESULT IN PERSONAL INJURY OR DEATH.
²Follow the vehicle manufacturer 's service speci-
fications at all times.
²Do not use the DRBIIItif it has been damaged.
²Do not use the test leads if the insulation is
damaged or if metal is exposed.
²To avoid electrical shock, do not touch the test
leads, tips, or the circuit being tested.
²Choose the proper range and functions for the
measurement. Do not try voltage or current mea-
surement that may exceed the rated capacity.
²Do not exceed the limits shown in the table below:
FUNCTION INPUT LIMIT
Volts 0 - 500 peak volts AC
0 - 500 volts DC
Ohms (Resistance)* 0 - 1.12 megaohms
Frequency Measure
Frequency Generated0-10kHz
Temperature -58 - +1100ÉF
-50 - +600ÉC
* Ohms cannot be measured if voltage is present.
Ohms can be measured only on a non-powered
circuit.± Voltage between any terminal and ground
must not exceed 500v DC or 500v peak AC.
± Use caution when measuring voltage above
25v DC or 25v AC.
± Use the low current shunt to measure circuits
up to 10A. Use the high current clamp to
measure circuits exceeding 10A.
± When testing for the presence of voltage or
current, make sure the meter is functioning
correctly. Take a reading of a known voltage or
current before accepting a zero reading.
± When measuring current, connect the meter in
series with the load.
± Disconnect the live test lead before disconnect-
ing the common test lead.
± When using the meter function, keep the
DRBIIItaway from spark plug or coil wires to
avoid measuring error from outside interfer-
ence.
4.3 WARNINGS
4.3.1 VEHICLE DAMAGE WARNINGS
Before disconnecting any control module, make
sure the ignition is ``off ''. Failure to do so could
damage the module.
When testing voltage or continuity at any control
module, use the terminal side (not the wire end) of
the connector. Do not probe a wire through the
insulation; this will damage it and eventually cause
it to fail because of corrosion. Be careful when
performing electrical tests so as to prevent acciden-
tal shorting of terminals. Such mistakes can dam-
age fuses or components. Also, a second code could
be set, making diagnosis of the original problem
more difficult.
4.3.2 ROAD TESTING A COMPLAINT
VEHICLE
Some complaints will require a test drive as part
of the repair verification procedure. The purpose of
the test drive is to try to duplicate the diagnostic
code or symptom condition.
12
GENERAL INFORMATION

4.2.4 DRBIIITSAFETY INFORMATION
WARNING: EXCEEDING THE LIMITS OF THE
DRBIIITMULTIMETER IS DANGEROUS. IT
CAN EXPOSE YOU TO SERIOUS OR
POSSIBLE FATAL INJURY. CAREFULLY
READ AND UNDERSTAND THE CAUTIONS
AND THE SPECIFICATION LIMITS.
²Follow the vehicle manufacturer 's service speci-
fications at all times.
²Do not use the DRBIIItif it has been damaged.
²Do not use the test leads if the insulation is
damaged or if metal is exposed.
²To avoid electrical shock, do not touch the test
leads, tips, or the circuit being tested.
²Choose the proper range and function for the
measurement. Do not try voltage or current mea-
surements that may exceed the rated capacity.
²Do not exceed the limits shown in the table below:
FUNCTION INPUT LIMIT
Volts 0 - 500 peak volts AC
0 - 500 volts DC
Ohms (resistance)* 0 - 1.12 megaohms
Frequency Measured
Frequency Generated0-10kHz
Temperature -58 - +1100ÉF
-50 - +600ÉC
* Ohms cannot be measured if voltage is present.
Ohms can be measured only in a non-powered
circuit.
± Voltage between any terminal and ground
must not exceed 500v DC or 500v peak AC.
± Use caution when measuring voltage above
25v DC or 25v AC.
± Use the low current shunt to measure circuits
up to 10A. Use the high current clamp to
measure circuits exceeding 10A.
± When testing for the presence of voltage or
current, make sure the meter is functioning
correctly. Take a reading of a known voltage or
current before accepting a zero reading.
± When measuring current, connect the meter in
series with test load.
± When using the meter function, keep the
DRBIIItaway from spark plug or coil wires to
avoid measuring error from outside interfer-
ence.
4.3 WARNING
4.3.1 VEHICLE DAMAGE WARNINGS
Before disconnecting any control module, make
sure the ignition is ``off ''. Failure to do so could
damage the module.
When testing voltage or continuity at any control
module, use the terminal side (not the wire end) of
the connector. Do not probe a wire through the
insulation; this will damage it and eventually cause
it to fail because of corrosion.
Be careful when performing electrical tests so as
to prevent accidental shorting of terminals. Such
mistakes can damage fuses or components. Also, a
second code could be set, making diagnosis of the
original problem more difficult.
4.3.2 ROAD TESTING A COMPLAINT
VEHICLE
Some complaints will require a test drive as part
of the repair verification procedure. The purpose of
the test drive is to try to duplicate the diagnostic
code or symptom condition.
CAUTION: Before road testing a vehicle, be
sure that all components are reassembled.
During the test drive, do not try to read the
DRBIIITscreen while in motion. Do not hang
the DRBIIITfrom the rear view mirror or
operate it yourself. Have an assistant
available to operate the DRBIIIT.
4.4 DIAGNOSIS
1. Your diagnostic test procedure must begin with a
thorough visual inspection of the system in ques-
tion for damaged components or disconnected
connectors. For ABS, the brake lamps must be
operational prior to continuing.
2. Connect the DRBIIItto the data link connector
located under the dash. If the DRBIIItdoes not
power up, check the power and ground supplies
to the connector.
3. Select the system in question. Turn the ignition
on. If the DRBIIItdisplays ``No Responseº, refer
to Communication in the Body Diagnostic Pro-
cedures manual to diagnose the symptom.
4. Read and record all diagnostic trouble codes. If
any additional codes are present, proceed to the
appropriate test.
5. For ABS, if there are no diagnostic trouble codes
present, select ``Inputs/Outputs'' and read the
Brake Switch and Brake Lamp Switch inputs as
you press and release the brake pedal. If the
6
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
*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:
P0115-ENGINE COOLANT TEMP SENSOR CIRCUIT PLAUSIBILITY
WITH ENGINE OIL SENSOR
When Monitored and Set Condition:
P0115-ENGINE COOLANT TEMP SENSOR CIRCUIT PLAUSIBILITY WITH EN-
GINE OIL SENSOR
When Monitored: With the engine running.
Set Condition: The ECT Sensor signal indicates a different engine temperature than the
EOS Sensor.
POSSIBLE CAUSES
CURRENT DTC
ECT SENSOR
ECT SENSOR - COLD
ECT SENSOR - HOT
ENGINE OIL SENSOR SENSOR
HGH RESISTANCE IN ECT SENSOR CIRCUITS
ENGINE COLD TOO LONG
TEST ACTION APPLICABILITY
1 Verify that the coolant level is correct.
Start the engine.
NOTE: The thermostat must be operating correctly for this test to be valid.
With the DRBIIIt, erase ECM DTCs.
With the DRBIIIt, set the engine RPM to 1500 and allow the engine to warm up for
10-15 minutes.
With the DRBIIIt, monitor the Engine Coolant Temperature value during the warm
up cycle. Make sure the transition of temperature change is smooth.
Did the engine temperature reach a minimum of 80É C (176É F)?All
Ye s!Go To 2
No!Refer to the Service Information for cooling system performance
diagnosis. The most probable cause is a Thermostat problem.
Also, refer to any related TSBs.
Perform ROAD TEST VERIFICATION - VER-2.
2 Turn the ignition on.
With the DRBIIIt, read the ECM DTCs.
Did this DTC return after performing the previous test?All
Ye s!Go To 3
No!Check for possible connecor or wiring problems at the ECT sensor
that may cause an intermittent problem. Repair as necessary.
Test Complete.
Perform ROAD TEST VERIFICATION - VER-2.
42
DRIVEABILITY - DIESEL