2007 NISSAN TIIDA sensor

P2138 APP SENSOR
EC-961
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>> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-III
Check harness for short to power and short to ground, between the following terminals.
Is the inspection result normal?
YES >> GO TO 9.
NO >> GO TO 8.
8.DETECT MALFUNCTIONING PART
Check the following.
 Harness conector E7, M69, M25, M201 (RHD models)
 Harness for open or short between ECM and APP sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
9.CHECK COMPONENTS
Check the following.
 Crankshaft position sensor (POS) (Refer to EC-865, "
Component Inspection".)
 Refrigerant pressure sensor (Refer to EC-988, "
Diagnosis Procedure".)
Is the inspection result normal?
YES >> GO TO 16.
NO >> Replace malfunctioning component.
10.CHECK APP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between APP sensor harness connector and ECM harness connector as follows.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 12.
NO >> GO TO 11.
11 .DETECT MALFUNCTIONING PART
Check the following.
 Harness conector E7, M69, M25, M201 (RHD models)
 Harness for open or short between ECM and APP sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
12.CHECK APP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between APP sensor harness connector and ECM harness connector as follows.
ECM Sensor
Connector Terminal Item Connector Terminal
F1174 Refrigerant pressure sensor E17 3
75 CKP sensor (POS) F15 1
E16 102 APP sensorE12 (LHD models)
M204 (RHD models)5
APP sensor ECM
Continuity
Connector Terminal Connector Terminal
E12 (LHD models)
M204 (RHD models)2
E16111
Existed
1104

EC-962
< COMPONENT DIAGNOSIS >[MR18DE]
P2138 APP SENSOR
2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 14.
NO >> GO TO 13.
13.DETECT MALFUNCTIONING PART
Check the following.
 Harness conector E7, M69, M25, M201 (RHD models)
 Harness for open or short between ECM and APP sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
14.CHECK APP SENSOR
Refer to EC-962, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 11.
NO >> GO TO 10.
15.REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Go to EC-963, "
Special Repair Requirement".
>> INSPECTION END
16.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000001161951
1.CHECK ACCELERATOR PEDAL POSITION SENSOR
1. Reconnect all harness connectors disconnected.
2. Turn ignition switch ON.
3. Check the voltage between ECM harness connector terminals as follows.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Go to EC-963, "
Special Repair Requirement".
APP sensor ECM
Continuity
Connector Terminal Connector Terminal
E12 (LHD models)
M204 (RHD models)3
E1611 0
Existed
6103
(+) (–)
Condition Voltage
Connector Terminal Connector Terminal
E1611 0
(APP sensor 1 signal)
E16111
Accelerator pedalFully released 0.6 - 0.9V
Fully depressed 3.9 - 4.7V
103
(APP sensor 2 signal)104Fully released 0.3 - 0.6V
Fully depressed 1.95 - 2.4V

P2138 APP SENSOR
EC-963
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>> INSPECTION END
Special Repair RequirementINFOID:0000000001161952
1.PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
Refer to EC-693, "
ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Require-
ment".
>> GO TO 2.
2.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Refer to EC-694, "
THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement".
>> GO TO 3.
3.PERFORM IDLE AIR VOLUME LEARNING
Refer to EC-694, "
IDLE AIR VOLUME LEARNING : Special Repair Requirement".
>> END

EC-978
< COMPONENT DIAGNOSIS >[MR18DE]
FUEL PUMP
FUEL PUMP
DescriptionINFOID:0000000001161973
*: ECM determines the start signal status by the signals of engine speed and battery voltage.
The ECM activates the fuel pump for several seconds after the ignition switch is turned ON to improve engine
startability. If the ECM receives a engine speed signal from the camshaft position sensor (PHASE), it knows
that the engine is rotating, and causes the pump to operate. If the engine speed signal is not received when
the ignition switch is ON, the engine stalls. The ECM stops pump operation and prevents battery discharging,
thereby improving safety. The ECM does not directly drive the fuel pump. It controls the ON/OFF fuel pump
relay, which in turn controls the fuel pump.
Component Function CheckINFOID:0000000001161974
1.CHECK FUEL PUMP FUNCTION
1. Turn ignition switch ON.
2. Pinch fuel feed hose with two fingers.
Is the inspection result normal?
YES >> INSPECTION END
NO >>EC-978, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001161975
1.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Turn ignition switch ON.
4. Check the voltage between ECM harness connector terminals as follows.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 2.
2.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-II
Sensor Input signal to ECM ECM Function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
Fuel pump controlFuel pump relay
↓
Fuel pump
Battery Battery voltage*
Condition Fuel pump operation
Ignition switch is turned to ON. Operates for 1 second.
Engine running and crankingOperates.
When engine is stopped Stops in 1.5 seconds.
Except as shown aboveStops.
Fuel pressure pulsation should be felt on the fuel feed
hose for 1 second after ignition switch is turned ON.
JMBIA0351ZZ
(+) (–)
Voltag e
Connector Terminal Connector Terminal
F10 23 E16 108 Battery voltage

FUEL PUMP
EC-979
< COMPONENT DIAGNOSIS >[MR18DE]
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1. Turn ignition switch OFF.
2. Disconnect IDPDM E/R harness connector.
3. Check the continuity between IPDM E/R harness connector and ECM harness connector.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
3.DETECT MALFUNCTIONING PART
Check the following.
 Harness or connectors E8, F8.
 Harness for open or short to ground and short power.
>> Repair harness or connectors.
4.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect “fuel level sensor unit and fuel pump” harness connector.
4. Turn ignition switch ON.
5. Check voltage between “fuel level sensor unit and fuel pump” harness connector and ground.
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 5.
5.CHECK 10A FUSE
1. Turn ignition switch OFF.
2. Disconnect 15A fuse (No. 48) from IPDM E/R.
3. Check 15A fuse.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace fuse.
6.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-IV
1. Disconnect IPDM E/R harness connector.
2. Check the continuity between IPDM E/R harness connector and “fuel level sensor unit and fuel pump”
harness connector.
3. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 10.
ECM IPDM E/R
Continuity
Connector Terminal Connector Terminal
F10 23 E46 47 Existed
Fuel level sensor unit
and fuel pump
Ground Voltage
Connector Terminal
B40 1 GroundBattery voltage should exist 1
second after ignition switch is
turn ON.
IPDM E/RFuel level sensor unit and
fuel pump
Continuity
Connector Terminal Connector Terminal
E45 36 B40 1 Existed

EC-980
< COMPONENT DIAGNOSIS >[MR18DE]
FUEL PUMP
NO >> GO TO 7.
7.DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors E7, M69, M12, B1.
 Harness for open or short between IPDM E/R and “fuel level sensor unit and fuel pump”
>> Repair open circuit or short to power in harness or connectors.
8.CHECK FUEL PUMP GROUND CIRCUIT
1. Check the continuity between “fuel level sensor unit and fuel pump” and ground.
2. Also heck harness for short to power.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Repair open circuit or short to power in harness or connectors.
9.CHECK FUEL PUMP
Refer to EC-980, "
Component Inspection (Fuel Pump)".
Is the inspection result normal?
YES >> GO TO 10.
NO >> Replace fuel pump.
10.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Repair or replace harness or connectors.
Component Inspection (Fuel Pump)INFOID:0000000001161976
1.CHECK FUEL PUMP
1. Turn ignition switch OFF.
2. Disconnect “fuel level sensor unit and fuel pump” harness connector.
3. Check resistance between “fuel level sensor unit and fuel pump” terminals as follows.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace “fuel level sensor unit and fuel pump”.
Fuel level sensor unit
and fuel pump
Ground Continuity
Connector Terminal
B40 3 Ground Existed
Terminals Resistance
1 and 3 0.2 - 5.0 Ω [at 25°C (77°F)]

EC-988
< COMPONENT DIAGNOSIS >[MR18DE]
REFRIGERANT PRESSURE SENSOR
REFRIGERANT PRESSURE SENSOR
DescriptionINFOID:0000000001161987
The refrigerant pressure sensor is installed at the condenser of the air conditioner system. The sensor uses an
electrostatic volume pressure transducer to convert refrigerant pressure to voltage. The voltage signal is sent
to ECM, and ECM controls cooling fan system.
Component Function CheckINFOID:0000000001161988
1.CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION
1. Start engine and warm it up to normal operating temperature.
2. Turn A/C switch and blower fan switch ON.
3. Check the voltage between ECM harness connector terminals as follows.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-988, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001161989
1.CHECK GROUND CONNECTION
1. Turn A/C switch and blower fan switch OFF.
2. Stop engine.
3. Turn ignition switch OFF.
4. Check ground connection E15. Refer to Ground Inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT
1. Disconnect refrigerant pressure sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between refrigerant pressure sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
PBIB2657E
(+) (–)
Voltage
Connector Terminal Connector Terminal
F1141
(Refrigerant pressure sensor signal)F11 48 1.0 - 4.0V
Refrigerant pressure sensor
Ground Voltage
Connector Terminal
E17 3 Ground Approx. 5V

REFRIGERANT PRESSURE SENSOR
EC-989
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3.DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors E8, F8
 Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec-
tor.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 6.
NO >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors E8, F8
 Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between ECM harness connector and refrigerant pressure sensor harness connec-
tor.
2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 7.
7.DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors E8, F8
 Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
8.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace refrigerant pressure sensor.
NO >> Repair or replace.
Refrigerant pressure sensor ECM
Continuity
Connector Terminal Connector Terminal
E17 1 F11 48 Existed
Refrigerant pressure sensor ECM
Continuity
Connector Terminal Connector Terminal
E17 2 F11 41 Existed