Nissan Primera P12. Instruction — part 248
DTC P0237, P0238 TC BOOST SENSOR
EC-177
[YD (WITH EURO-OBD)]
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EC
DTC P0237, P0238 TC BOOST SENSOR
PFP:22365
Component Description
EBS013NH
The turbocharger boost sensor detects pressure in the exit side of
the charge air cooler. The sensor output voltage to the ECM
increases as pressure increases.
CONSULT-II Reference Value in Data Monitor Mode
EBS013NI
Specification data are reference values.
ECM Terminals and Reference Value
EBS013NJ
Specification data are reference values, and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may damage the
ECM's transistor. Use a ground other than ECM terminals, such as the ground.
MBIB0614E
MBIB0899E
MONITOR ITEM
CONDITION
SPECIFICATION
INT/M PRES SE [kPa]
●
Engine: After warming up
●
Air conditioner switch: OFF
●
Shift lever: Neutral position
●
No-load
Idle
Approx. 100 kPa
2,800 rpm
Approx. 126 kPa
4,000 rpm
Approx. 106 kPa
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA
(DC Voltage)
52
Y
Turbocharger boost sensor
[Engine is running]
●
Warm-up condition
●
Idle speed
2.3 - 2.6V
[Engine is running]
●
Warm-up condition
●
Engine speed is 2,000 rpm
2.5 - 2.8V
64
W
Turbocharger boost sensor
power supply
[Ignition switch ON]
Approximately 5.3V
71
B
Turbocharger boost sensor
ground
[Ignition switch ON]
Approximately 0.3V
EC-178
[YD (WITH EURO-OBD)]
DTC P0237, P0238 TC BOOST SENSOR
On Board Diagnosis Logic
EBS013NK
DTC Confirmation Procedure
EBS013NL
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1.
Turn ignition switch ON.
2.
Select “DATA MONITOR” mode with CONSULT-II.
3.
Wait at least 5 seconds.
4.
If 1st trip DTC is detected, go to
EC-180, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0237
Turbocharger boost sensor
circuit low input
An excessively low voltage from the sensor is
sent to ECM.
●
Harness or connectors
(The sensor circuit is open or
shorted.)
●
Turbocharger boost sensor
P0238
Turbocharger boost sensor
circuit high input
An excessively high voltage from the sensor is
sent to ECM.
SEF817Y
DTC P0237, P0238 TC BOOST SENSOR
EC-179
[YD (WITH EURO-OBD)]
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A
EC
Wiring Diagram
EBS013NM
MBWA0378E
EC-180
[YD (WITH EURO-OBD)]
DTC P0237, P0238 TC BOOST SENSOR
Diagnostic Procedure
EBS013NN
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Loosen and retighten engine ground screws. Refer to
.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace ground connections.
2.
CHECK TURBOCHARGER BOOST SENSOR POWER SUPPLY CIRCUIT
1.
Disconnect turbocharge boost sensor harness connector.
2.
Turn ignition switch ON.
3.
Check voltage between turbocharge boost sensor terminal 1
and ground with CONSULT-II or tester.
OK or NG
OK
>> GO TO 3.
NG
>> Repair open circuit or short to ground or short to power
in harness or connectors.
3.
CHECK TURBOCHAGER BOOST SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between turbocharger boost sensor terminal 3 and ECM terminal 71.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 4.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
MBIB0915E
MBIB1025E
Voltage: Approximately 5.3V
MBIB0072E
Continuity should exist.
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