2007 NISSAN TIIDA Engine Control

P1065 ECM
EC-217
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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P1065 ECM
DescriptionINFOID:0000000001161270
ECM has the memory function of the DTC memory, the air-fuel ratio
feedback compensation value memory, the Idle Air Volume Learning
value memory, etc. even when the ignition switch is turned OFF.
DTC LogicINFOID:0000000001161271
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON and wait at least 1 second.
2. Start engine and let it idle for 1 second.
3. Turn ignition switch OFF, wait at least 10 seconds, and then turn ON.
4. Repeat steps 2 and 3 for four times.
5. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-217, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001161272
1.INSPECTION START
With CONSULT-III
1. Turn ignition switch ON.
2. Select “SELF-DIAG RESULTS” mode with CONSULT-III.
3. Touch “ERASE”.
4.Perform DTC CONFIRMATION PROCEDURE.
See EC-217, "
DTC Logic".
With GST
1. Turn ignition switch ON.
2. Select Service $04 with GST.
3.Perform DTC CONFIRMATION PROCEDURE.
See EC-217, "
DTC Logic".
Is the 1st trip DTC P1065 displayed again?
YES >> GO TO 2.
PBIA9222J
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1065 Engine control moduleECM back-up RAM system does not function
properly.ECM

P1111 IVT CONTROL SOLENOID VALVE
EC-219
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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P1111 IVT CONTROL SOLENOID VALVE
DescriptionINFOID:0000000001670983
Intake valve timing control solenoid valve is activated by ON/OFF
pulse duty (ratio) signals from the ECM.
The intake valve timing control solenoid valve changes the oil
amount and direction of flow through intake valve timing control unit
or stops oil flow.
The longer pulse width advances valve angle.
The shorter pulse width retards valve angle.
When ON and OFF pulse widths become equal, the solenoid valve
stops oil pressure flow to fix the intake valve angle at the control
position.
DTC LogicINFOID:0000000001670984
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for 5 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-219, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001670985
1.CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect intake valve timing control solenoid valve harness connector.
3. Turn ignition switch ON.
4. Check the voltage between intake valve timing control solenoid valve harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.DETECT MALFUNCTION PART
PBIB1842E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1111Intake valve timing control
solenoid valve circuitAn improper voltage is sent to the ECM
through intake valve timing control solenoid
valve. Harness or connectors
(Intake valve timing control solenoid valve
circuit is open or shorted.)
 Intake valve timing control solenoid valve
IVT control solenoid valve
Ground Voltage
Connector Terminal
F23 1 Ground Battery voltage

EC-222
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
DescriptionINFOID:0000000001670987
Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc.
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The throttle position sensor detects the throttle valve position, and the opening and closing speed of the throt-
tle valve and feeds the voltage signals to the ECM. The ECM judges the current opening angle of the throttle
valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening
angle properly in response to driving condition.
DTC LogicINFOID:0000000001670988
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A AND B
1. Turn ignition switch ON and wait at least 1 second.
2. Set shift lever to D (A/T), 1st (M/T) position and wait at least 3 seconds.
3. Set shift lever to P or N (A/T), Neutral (M/T) position.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Turn ignition switch ON and wait at least 1 second.
6. Set shift lever to D (A/T), 1st (M/T) position and wait at least 3 seconds.
7. Set shift lever to P or N (A/T), Neutral (M/T) position.
8. Turn ignition switch OFF, wait at least 10 seconds, and then turn ON.
9. Check DTC.
Is DTC detected?
YES >> Go to EC-222, "Diagnosis Procedure".
NO >> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION C
1. Turn ignition switch ON and wait at least 1 second.
2. Set shift lever to D (A/T), 1st (M/T) position and wait at least 3 seconds.
3. Set shift lever to P or N (A/T), Neutral (M/T) position.
4. Start engine and let it idle for 3 seconds.
5. Check DTC.
Is DTC detected?
YES >> Go to EC-222, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001670989
1.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1121Electric throttle control
actuatorA)Electric throttle control actuator does not func-
tion properly due to the return spring malfunc-
tion.
 Electric throttle control actuator
B)Throttle valve opening angle in fail-safe mode is
not in specified range.
C) ECM detect the throttle valve is stuck open.

EC-224
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
P1122 ELECTRIC THROTTLE CONTROL FUNCTION
P1122 ELECTRIC THROTTLE CONTROL FUNCTION
DescriptionINFOID:0000000001670991
Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc.
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feed-
back to the ECM to control the throttle control motor to make the throttle valve opening angle properly in
response to driving condition.
DTC LogicINFOID:0000000001670992
DTC DETECTION LOGIC
NOTE:
If DTC P1122 is displayed with DTC P1121 or P1126, first perform the trouble diagnosis for DTC P1121
or P1126. Refer to EC-228, "
DTC Logic" or EC-222, "DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11V when engine
is running.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON and wait at least 2 seconds.
2. Start engine and let it idle for 5 seconds.
3. Check DTC.
Is DTC detected?
YES >> Go to EC-224, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001670993
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 THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I
1. Check the voltage between ECM harness connector terminals as follows.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1122Electric throttle control
performanceElectric throttle control function does not oper-
ate properly. Harness or connectors
(Throttle control motor circuit is open or
shorted)
 Electric throttle control actuator

EC-228
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
P1124, P1126 THROTTLE CONTROL MOTOR RELAY
P1124, P1126 THROTTLE CONTROL MOTOR RELAY
DescriptionINFOID:0000000001670996
Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle
control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends
an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition
switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not
provided to the ECM.
DTC LogicINFOID:0000000001670997
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8V.
Witch DTC is detected?
P1126 >> GO TO 2.
P1124 >> GO TO 3.
2.PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P1126
1. Turn ignition switch ON and wait at least 2 seconds.
2. Start engine and let it idle for 5 seconds.
3. Check DTC.
Is DTC detected?
YES >> Go to EC-228, "Diagnosis Procedure".
NO >> INSPECTION END
3.PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P1124
1. Turn ignition switch ON and wait at least 1 second.
2. Check DTC.
Is DTC detected?
YES >> Go to EC-228, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001670998
1.CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I
1. Turn ignition switch OFF.
2. Check the voltage between ECM harness connector terminals as follows.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1124Throttle control motor
relay circuit openECM detects a voltage of power source for
throttle control motor is excessively low. Harness or connectors
(Throttle control motor relay circuit is
open)
 Throttle control motor relay
P1126Throttle control motor
relay circuit shortECM detect the throttle control motor relay is
stuck ON. Harness or connectors
(Throttle control motor relay circuit is
shorted)
 Throttle control motor relay

P1128 THROTTLE CONTROL MOTOR
EC-231
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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P1128 THROTTLE CONTROL MOTOR
DescriptionINFOID:0000000001670999
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feed-
back to the ECM to control the throttle control motor to make the throttle valve opening angle properly in
response to driving condition.
DTC LogicINFOID:0000000001671000
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON and wait at least 2 seconds.
2. Start engine and let it idle for 5 seconds.
3. Check DTC.
Is DTC detected?
YES >> Go to EC-231, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001671001
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 THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect electric throttle control actuator harness connector.
2. Disconnect ECM harness connector.
3. Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1128Throttle control motor
circuit shortECM detects short in both circuits between
ECM and throttle control motor. Harness or connectors
(Throttle control motor circuit is shorted.)
 Electric throttle control actuator
(Throttle control motor)
Electric throttle control actuator ECM
Continuity
Connector Terminal Connector Terminal
F75
F101 Not existed
4 Existed
61 Existed
4 Not existed

P1146 HO2S2
EC-243
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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P1146 HO2S2
DescriptionINFOID:0000000001671012
The heated oxygen sensor 2, after three way catalyst (manifold),
monitors the oxygen level in the exhaust gas on each bank.
Even if switching characteristics of the heated oxygen sensor 1 are
shifted, the air-fuel ratio is controlled to stoichiometric, by the signal
from the heated oxygen sensor 2.
This sensor is made of ceramic zirconia. The zirconia generates volt-
age from approximately 1V in richer conditions to 0V in leaner condi-
tions.
Under normal conditions the heated oxygen sensor 2 is not used for
engine control operation.
DTC LogicINFOID:0000000001671013
DTC DETECTION LOGIC
The heated oxygen sensor 2 has a much longer switching time
between rich and lean than the heated oxygen sensor 1. The oxygen
storage capacity of the three way catalyst (manifold) causes the
longer switching time. To judge the malfunctions of heated oxygen
sensor 2, ECM monitors whether the minimum voltage of the sensor
is sufficiently low during the various driving condition such as fuel-
cut.
DTC CONFIRMATION PROCEDURE
1.INSPECTION START
Do you have CONSULT-III?
Do you have CONSULT-III?
YES >> GO TO 2.
NO >> GO TO 11.
2.PRECONDITIONING
“COMPLETED” will appear on CONSULT-III screen when all tests “COND1”, “COND2” and “COND3” are
completed.
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
For the best results, perform ″DTC WORK SUPPORT″ at a temperature of 0 to 30°C (32 to 86°F).
Never stop engine during this procedure. If the engine is stopped, retry this procedure from step 2 in
Procedure for COND1.
CAUTION:
Always drive at safe speed.
SEF327R
PBIB0554E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1146Heated oxygen sensor 2
minimum voltage moni-
toringThe minimum voltage from the sensor is not
reached to the specified voltage. Harness or connectors
(The sensor circuit is open or shorted)
 Heated oxygen sensor 2
 Fuel pressure
 Fuel injector
 Intake air leaks

EC-250
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
P1147 HO2S2
P1147 HO2S2
DescriptionINFOID:0000000001671017
The heated oxygen sensor 2, after three way catalyst (manifold),
monitors the oxygen level in the exhaust gas on each bank.
Even if switching characteristics of the heated oxygen sensor 1 are
shifted, the air-fuel ratio is controlled to stoichiometric, by the signal
from the heated oxygen sensor 2.
This sensor is made of ceramic zirconia. The zirconia generates volt-
age from approximately 1V in richer conditions to 0V in leaner condi-
tions.
Under normal conditions the heated oxygen sensor 2 is not used for
engine control operation.
DTC LogicINFOID:0000000001671018
DTC DETECTION LOGIC
The heated oxygen sensor 2 has a much longer switching time
between rich and lean than the heated oxygen sensor 1. The oxygen
storage capacity of the three way catalyst (manifold) causes the
longer switching time. To judge the malfunctions of heated oxygen
sensor 2, ECM monitors whether the maximum voltage of the sensor
is sufficiently high during the various driving condition such as fuel-
cut.
DTC CONFIRMATION PROCEDURE
1.INSPECTION START
Do you have CONSULT-III?
Do you have CONSULT-III?
YES >> GO TO 2.
NO >> GO TO 11.
2.PRECONDITIONING
“COMPLETED” will appear on CONSULT-III screen when all tests “COND1”, “COND2” and “COND3” are
completed.
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
For the best results, perform ″DTC WORK SUPPORT″ at a temperature of 0 to 30°C (32 to 86°F).
Never stop engine during this procedure. If the engine is stopped, retry this procedure from step 2 in
Procedure for COND1.
CAUTION:
Always drive at safe speed.
SEF327R
SEF259VA
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1146Heated oxygen sensor 2
circuit low voltageThe maximum voltage from the sensor is not
reached to the specified voltage. Harness or connectors
(The sensor circuit is open or shorted)
 Heated oxygen sensor 2
 Fuel pressure
 Fuel injector
 Intake air leaks