NISSAN TIIDA 2007 Service Repair Manual

EC-1182
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P0651 SENSOR POWER SUPPLY
P0651 SENSOR POWER SUPPLY
DTC LogicINFOID:0000000001162651
DTC DETECTION LOGIC
NOTE:
If DTC P0651 is displayed with DTC P0225, P0235, first perform trouble diagnosis for DTC P0651.
Conditions for applying the diagnostic procedure to the stored DTCs:
The DTC is declared present after the ignition has been switched on.
If the DTC is present:
Malfunction indicator (Red) lights up.
Diagnosis ProcedureINFOID:0000000001162652
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. 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 ACCELERATOR PEDAL POSITION SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between APP sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK SENSOR POWER SUPPLY CIRCUITS
Check harness for short to power and short to ground, between the following terminals.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair short to ground or short to power in harness or connectors.
4.CHECK SENSOR GROUND CIRCUITS
DTC No. Trouble diagnosis name Possible cause
P0651SENSOR POWER SUPPLY CIRCUIT
 1.DEF: Parameter at minimum level
 2.DEF: Parameter at maximum level Harness or connectors
(The APP sensor 1 power supply circuit is shorted.)
(Turbocharger boost sensor circuit is shorted.)
 Accelerator pedal position sensor
(APP sensor 1)
 Turbocharger boost sensor
APP sensor
Ground Voltage
Connector Terminal
E12 (LHD models)
M204 (RHD models)4 Ground Approx. 5V
ECM Sensor
Connector Terminal Name Connector Terminal
E16 122 APP sensorE12 (LHD models)
M204 (RHD models)4
F10 36 Turbocharger boost sensor F50 1

P0651 SENSOR POWER SUPPLY
EC-1183
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Check harness for short to power and short to ground, between the following terminals.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair short to ground or short to power in harness or connectors.
5.CHECK TURBOCHARGER BOOST SENSOR
 Turbocharger boost sensor (Refer to EC-1119, "
Component Inspection".)
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace Turbocharger boost sensor.
6.CHECK APP SENSOR
Refer to EC-1146, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 7.
NO >> Replace APP sensor.
7.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
>> INSPECTION END
ECM Sensor
Connector Terminal Name Connector Terminal
E16 127 APP sensorE12 (LHD models)
M204 (RHD models)2
F10 43 Turbocharger boost sensor F50 2

EC-1184
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P0685 ECM RELAY
P0685 ECM RELAY
DTC LogicINFOID:0000000001162653
DTC DETECTION LOGIC
NOTE:
If the DTC is present:
-Malfunction indicator (Red) lights up.
Diagnosis ProcedureINFOID:0000000001162654
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. 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 ECM GROUND CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between ECM harness connector and ground.
2. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit or short power in harness or connectors.
3.CHECK ECM POWER SUPPLY CIRCUIT
Check the voltage between ECM harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 6.
4.CHECK ECM POWER SUPPLY CIRCUIT-II
1. Disconnect ECM harness connector.
2. Disconnect IPDM E/R harness connector E43.
3. Check the continuity between ECM harness connector and IPDM E/R harness connector.
DTC No. Trouble diagnosis name Possible cause
P0685ECM RELAY CIRCUIT
 CO: Open circuit
 CC.0: Short circuit to ground
 CC.1: Short circuit to +12V Harness or connectors
(The ECM relay circuit is open or short-
ed.)
 IPDM E/R (ECM relay)
ECM
Ground Continuity
Connector Terminal
E16123
Ground Existed 124
125
128
+–
Vo l ta g e
Connector Terminal Connector Terminal
F11 60 E16 128 Battery voltage

P0685 ECM RELAY
EC-1185
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4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.
 Harness or connectors E8, F8
 Harness for open or short between ECM and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK ECM POWER SUPPLY CIRCUIT-III
1. Disconnect ECM harness connector.
2. Disconnect IPDM E/R harness connector E43.
3. Check the continuity between ECM harness connector and IPDM E/R harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair open circuit or short to ground or short power in harness or connectors.
7.CHECK 20A FUSE
1. Disconnect 20A fuse (No. 53) from IPDM E/R.
2. Check 20A fuse.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Replace 20A fuse.
8.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Repair or replace.
ECM IPDM E/R
Continuity
Connector Terminal Connector Terminal
E6853
E434
Existed
54 3
ECM IPDM E/R
Continuity
Connector Terminal Connector Terminal
F11 60 E43 7 Existed

EC-1186
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P1089 FUEL PUMP
P1089 FUEL PUMP
DTC LogicINFOID:0000000001162661
DTC DETECTION LOGIC
NOTE:
NOTE:
-If DTC P1089 is displayed with DTC P0180, first perform trouble diagnosis for DTC P0180. Refer to
EC-1136, "
DTC Logic".
-If DTC P1089 is displayed with DTC P0190, first perform trouble diagnosis for DTC P0190. Refer to
EC-1138, "
DTC Logic".
Conditions for applying the diagnostic procedure to the stored DTCs:
The DTC appears when the engine is running.
If the DTC is present:
-Malfunction indicator (Red) lights up.
Diagnosis ProcedureINFOID:0000000001162662
1.CHECK LOW PRESSURE FUEL SUPPLY SYSTEM
Refer to EC-1043, "
BASIC INSPECTION : Special Repair Requirement (TEST 1: Low Pressure Fuel Supply
System Check)".
Is the inspection result normal?
OK >> GO TO 2.
NG >> Replace or replace. Then GO TO 9.
2.CHECK INTERNAL FUEL TRANSFER PUMP
Refer to EC-1044, "
BASIC INSPECTION : Special Repair Requirement (TEST 2: Internal Fuel Transfer Pump
Check)".
Is the inspection result normal?
OK >> GO TO 3.
NG >> Replace or replace. Then GO TO 9.
3.CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE)
Refer to EC-1044, "
BASIC INSPECTION : Special Repair Requirement [TEST 3: High Pressure Supply Pump
(Pressure Control Valve) Check]".
Is the inspection result normal?
OK >> GO TO 4.
NG >> Replace or replace. Then GO TO 9.
DTC No. Trouble diagnosis name Possible cause
P1089FUEL RAIL PRESSURE REGULATION FUNCTION
 1.DEF: High pressure supply pump (Pressure control valve) closed
 2.DEF: High pressure supply pump (Pressure control valve) open
 3.DEF: High pressure supply pump (Volumetric control valve) open
 4.DEF: High pressure supply pump (Volumetric control valve) closed
 5.DEF: Component malfunction: High pressure supply pump (Pressure
control valve or Volumetric control valve)
 6.DEF: High pressure supply pump (Pressure control valve) oscillation
 7.DEF: High pressure supply pump (Volumetric control valve)) oscilla-
tion Harness or connectors
[High pressure supply pump (volumetric
control valve) circuit is open or shorted.]
[High pressure supply pump (Pressure
control valve) circuit is open or shorted.]
(Fuel rail pressure sensor circuit is open or
shorted.)
 High pressure supply pump
 High pressure supply pump (Pressure
control valve)
 High pressure supply pump (Volumetric
control valve)
 Fuel line
 Fuel rail
 Fuel injector
 Fuel rail pressure sensor
 Fuel rail pressure relief valve
 Air mixture with fuel
 Lack of fuel

P1089 FUEL PUMP
EC-1187
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4.CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)
Refer to EC-1045, "
BASIC INSPECTION : Special Repair Requirement [TEST 4: High Pressure Supply Pump
(Volumetric Control Valve) Check]".
Is the inspection result normal?
OK >> GO TO 5.
NG >> Replace or replace. Then GO TO 9.
5.CHECK RAIL HIGH PRESSURE REGULATION
Refer to EC-1048, "
BASIC INSPECTION : Special Repair Requirement (TEST 5: Rail High Pressure Regula-
tion Check)".
Is the inspection result normal?
OK >> GO TO 6.
NG >> Replace or replace. Then GO TO 9.
6.CHECK MAJOR LEAK IN FUEL INJECTORS/FUEL INJECTORS OPEN
Refer to EC-1052, "
BASIC INSPECTION : Special Repair Requirement (TEST 6: Major Leak in Fuel Injectors/
Fuel Injectors Open)".
Is the inspection result normal?
OK >> GO TO 7.
NG >> Replace or replace. Then GO TO 9.
7.CHECK INCORRECT FUEL INJECTION QUANTITY
Refer to EC-1053, "
BASIC INSPECTION : Special Repair Requirement (TEST 7: Incorrect Fuel Injection
Quantity)".
Is the inspection result normal?
OK >> GO TO 8.
NG >> Replace or replace. Then GO TO 9.
8.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
Is the inspection result normal?
YES >> INSPECTIO END.
NO >> Repair or replace. Then GO TO 9.
9.CLEAR PRESSURE REGULATION
Perform “PRESS REG ADAPTIVE” in WORK SUPPORT mode with CONSULT-III.
>>INSPECTION END.

EC-1188
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P2101 ELECTRIC THROTTLE CONTROL FUNCTION
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
DescriptionINFOID:0000000001162663
By default the valve is open when in the rest position and is actuated only when the engine is switched off; this
has a damping effect and helps to stop the engine.
DTC LogicINFOID:0000000001162664
DTC DETECTION LOGIC
NOTE:
Conditions for applying the diagnostic procedure to the stored DTCs:
The DTC is declared present after the engine is started or following a load test.
Special note:
If DTC P2101 2.DEF is displayed, first perform trouble diagnosis for DTC P0120. Refer to EC-1134,
"DTC Logic".
Diagnosis ProcedureINFOID:0000000001162665
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. 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 ELECTRIC THROTTLE CONTROL ACTUATOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect electric throttle control actuator harness connector.
3. Turn ignition switch ON.
4. Check the voltage between electric throttle control actuator harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
 IPDM E/R
 Harness connectors E8, F8
 Harness for open or short between IPDM E/R and electric throttle control actuator
 Harness for open or short between ECM and electric throttle control actuator
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR CIRCUIT-I
DTC No. Trouble diagnosis name Possible cause
P2101THROTTLECONTROL MOTOR CIRCUIT
 1.DEF: No signal
 2.DEF:
 3.DEF: Values out of range
 4.DEF: Signal incoherence Harness or connectors
(Throttle control motor circuit is open or
shorted.)
 Throttle control motor
Electric throttle control actua-
tor
Ground Voltage
Connector Terminal
F7 1 Ground Battery voltage

P2101 ELECTRIC THROTTLE CONTROL FUNCTION
EC-1189
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1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR CIRCUIT-II
1. Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.
2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR CIRCUIT-III
1. Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.
2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK THROTTLE CONTROL MOTOR
Refer to EC-1189, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 8.
NO >> Replace electric throttle control actuator.
8.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace electric throttle control actuator.
NO >> Repair or replace.
Component InspectionINFOID:0000000001611036
1.CHECK THROTTLE CONTROL MOTOR
1. Turn ignition switch OFF.
Electric throttle control actuator ECM
Continuity
Connector Terminal Connector Terminal
F7 5 F11 72 Existed
Electric throttle control actuator ECM
Continuity
Connector Terminal Connector Terminal
F7 2 F11 94 Existed
Electric throttle control actuator ECM
Continuity
Connector Terminal Connector Terminal
F7 4 F11 90 Existed

EC-1190
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P2101 ELECTRIC THROTTLE CONTROL FUNCTION
2. Disconnect electric throttle control actuator harness connector.
3. Check resistance between electric throttle control actuator terminals as follows.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace electric throttle control actuator.
Terminals Resistance
1 and 2 21 ± 2.1Ω [23°C (73°F)]

P2120 APP SENSOR
EC-1191
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P2120 APP SENSOR
DescriptionINFOID:0000000001162667
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensors detect the accelera-
tor pedal position and sends a signal to the ECM. The ECM uses the
signal to determine the amount of fuel to be injected.
DTC LogicINFOID:0000000001162668
DTC DETECTION LOGIC
NOTE:
If DTC P2120 is displayed with DTC P0641, first perform trouble diagnosis for DTC P0641. Refer to
EC-1180, "
DTC Logic".
 Conditions for applying the diagnostic procedure to the stored DTCs:
- The DTC is declared present after a series of full load-no load accelerator pedal actions have been carried
out (engine stopped, ignition on).
If the DTC is present:
-Malfunction indicator (Red) lights up.
Diagnosis ProcedureINFOID:0000000001162669
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. 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 ACCELERATOR PEDAL POSITION SENSOR POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between accelerator pedal position sensor connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
PBIB1741E
DTC No. Trouble diagnosis name Possible cause
P2120ACCELERATOR PEDAL POSITION SENSOR 2 CIRCUIT
 CC.1: Short circuit to +12V
 CO.0: Open circuit or short circuit to ground Harness or connectors
(APP sensor 2 circuit is open or shorted.)
 Accelerator pedal position sensor
(APP sensor 2)
Accelerator pedal position sensor
Ground Voltage
Sensor Connector Terminal
2E12 (LHD models)
M204 (RHD models)5 Ground Approx. 5V