2007 NISSAN TIIDA Service Repair Manual

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Page 2241 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-892
< COMPONENT DIAGNOSIS >[MR18DE]
P1124, P1126 THROTTLE CONTROL MOTOR RELAY
Is the inspection result normal?
YES >> GO TO 5.
NO >> GO TO 2.
2.CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCU

Page 2242 of 5883

NISSAN TIIDA 2007 Service Repair Manual P1124, P1126 THROTTLE CONTROL MOTOR RELAY
EC-893
< COMPONENT DIAGNOSIS >[MR18DE]
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Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 7.
7.DETECT MALFUNCTIONING

Page 2243 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-894
< COMPONENT DIAGNOSIS >[MR18DE]
P1128 THROTTLE CONTROL MOTOR
P1128 THROTTLE CONTROL MOTOR
DescriptionINFOID:0000000001161867
The throttle control motor is operated by the ECM and it opens and c

EC-894
< COMPONENT DIAGNOSIS >[MR18DE]
P1128 THROTTLE CONTROL MOTOR
P1128 THROTTLE CONTROL MOTOR
DescriptionINFOID:0000000001161867
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:0000000001161868
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-894, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001161869
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
F101Not existed
4 Existed
61 Existed
4Not existed

Page 2244 of 5883

NISSAN TIIDA 2007 Service Repair Manual P1128 THROTTLE CONTROL MOTOR
EC-895
< COMPONENT DIAGNOSIS >[MR18DE]
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4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >

Page 2245 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-896
< COMPONENT DIAGNOSIS >[MR18DE]
P1143 HO2S1
P1143 HO2S1
DescriptionINFOID:0000000001161872
The heated oxygen sensor 1 is placed into the exhaust manifold. It
detects the amount of oxygen in the

Page 2246 of 5883

NISSAN TIIDA 2007 Service Repair Manual P1143 HO2S1
EC-897
< COMPONENT DIAGNOSIS >[MR18DE]
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Before performing the following procedure, confirm that battery voltage is more than 11V at idle.
Do you have CONSULT

P1143 HO2S1
EC-897
< COMPONENT DIAGNOSIS >[MR18DE]
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Before performing the following procedure, confirm that battery voltage is more than 11V at idle.
Do you have CONSULT-III?
YES >> GO TO 2.
NO >> GO TO 3.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and warm it up to normal operating temperature.
2. Stop engine and wait at least 10 seconds.
3. Turn ignition switch ON and select “HO2S1 (B1) P1143” of “HO2S1” in “DTC WORK SUPPORT” mode
with CONSULT-III.
4. Touch “START”.
5. Start engine and let it idle for at least 3 minutes.
NOTE:
Never raise engine speed above 3,600 rpm after this step. If the engine speed limit is exceeded,
return to step 5.
6. When the following conditions are met, “TESTING” will be displayed on the CONSULT-III screen. Maintain
the conditions continuously until “TESTING” changes to “COMPLETED”. (It will take approximately 50
seconds or more.)
CAUTION:
Always drive vehicle at a safe speed.
If “TESTING” is not displayed after 5 minutes, retry from step 2.
7. Touch “SELF-DIAG RESULT”
Which is displayed on CONSULT-III screen?
OK >> INSPECTION END
NG >> Go to EC-897, "
Diagnosis Procedure".
3.PERFORM COMPONENT FUNCTION CHECK
With GST
1. Start engine and warm it up to normal operating temperature.
2. Set voltmeter probes between ECM harness connector terminals as follows under the following condition.
NOTE:
Use component function check to check the overall function of the heated oxygen sensor 1 circuit. During this
check, a 1st trip DTC might not be confirmed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-897, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001161874
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?
ENG SPEED 1,375 - 2,600 rpm
VHCL SPEED SE Less than 100 km/h (62 MPH)
B/FUEL SCHDL 3.7 - 10.0 msec
Shift lever Suitable position
ECM Ground
Condition Voltage
Connector Terminal Connector Terminal
F1149
(HO2S1 signal)F11 56Engine speed held at
2,000 rpm constant under
no load The maximum voltage is over 0.6 at least 1
time.
The minimum voltage is over 0.1 at least 1
time.

Page 2247 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-898
< COMPONENT DIAGNOSIS >[MR18DE]
P1143 HO2S1
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.RETIGHTEN HEATED OXYGEN SENSOR 1
Loosen and retighten heated oxygen sensor 1. Refer to E

Page 2248 of 5883

NISSAN TIIDA 2007 Service Repair Manual P1143 HO2S1
EC-899
< COMPONENT DIAGNOSIS >[MR18DE]
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6. Check the following.
- “HO2S1 MNTR (B1)” in “DATA MONITOR” mode changes from
“RICH” to “LEAN” to �

P1143 HO2S1
EC-899
< COMPONENT DIAGNOSIS >[MR18DE]
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6. Check the following.
- “HO2S1 MNTR (B1)” in “DATA MONITOR” mode changes from
“RICH” to “LEAN” to “RICH” more than 5 times in 10 seconds.
5 times (cycles) are counted as shown in the figure.
- “HO2S1 (B1)” voltage goes above 0.6V at least once.
- “HO2S1 (B1)” voltage goes below 0.3V at least once.
- “HO2S1 (B1)” voltage never exceeds 1.0V.
CAUTION:
Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m
(19.7 in) onto a hard surface such as a concrete floor; use a new one.
Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor
Thread Cleaner tool and approved anti-seize lubricant.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 3.
3.CHECK HEATED OXYGEN SENSOR 1
Without CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Check the voltage between ECM harness connector terminals as follows under the following condition.
CAUTION:
Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7
in) onto a hard surface such as a concrete floor; use a new one.
Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner tool and approved anti-seize lubricant.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 4
4.REPLACE HEATED OXYGEN SENSOR 1
Replace heated oxygen sensor 1.
SEF217YA
JMBIA0352ZZ
(+) (–)
Condition Voltage
Connector Terminal Connector Terminal
F1149
(HO2S1 signal)F11 56Engine speed held at
2,000 rpm constant
under no load. The voltage fluctuates between 0 to 0.3V and 0.6
to 1.0V more than 5 times within 10 seconds.
The maximum voltage is over 0.6V at least 1
time.
The minimum voltage is below 0.3V at least 1
time.
The voltage never exceeds 1.0V.
1 time: 0 - 0.3V → 0.6 - 1.0V → 0 - 0.3V
2 times: 0 - 0.3V → 0.6 - 1.0V → 0 - 0.3V → 0.6 -
1.0V → 0 - 0.3V

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