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DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
EC-287
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Wiring DiagramEBS00KA4
YEC298A
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![NISSAN ALMERA N16 2003 Electronic Repair Manual EC-288
[QG (WITH EURO-OBD)]
DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground term NISSAN ALMERA N16 2003 Electronic Repair Manual EC-288
[QG (WITH EURO-OBD)]
DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground term](/manual-img/5/57350/w960_57350-617.png)
EC-288
[QG (WITH EURO-OBD)]
DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
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 result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureEBS00KA5
1. CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect throttle control motor relay.
3. Check voltage between throttle control motor relay terminals 2, 5
and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING PART
Check the following.
●15A fuse
●Harness for open or short between throttle control motor relay and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
3RThrottle control motor
power supply[Ignition switch “ON”]BATTERY VOLTAGE
(11 - 14V)
104 OR Throttle control motor relay[Ignition switch “OFF”]BATTERY VOLTAGE
(11 - 14V)
[Ignition switch “ON”]0 - 1.0V
MBIB0248E
Voltage: Battery voltage
PBIB0575E
Page 619 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
EC-289
[QG (WITH EURO-OBD)]
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3.CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Ch NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
EC-289
[QG (WITH EURO-OBD)]
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3.CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Ch](/manual-img/5/57350/w960_57350-618.png)
DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
EC-289
[QG (WITH EURO-OBD)]
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3.CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 3 and throttle control motor relay terminal 3.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors E225, F43
●Harness for open or short between ECM and throttle control motor relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK THROTTLE CONTROL MOTOR RELAY OUTPUT SIGNAL CIRCUIT
1. Check continuity between ECM terminal 104 and throttle control motor relay terminal 1.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6.DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors E75, F36
●Harness for open or short between ECM and throttle control motor relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.CHECK THROTTLE CONTROL MOTOR RELAY
Refer to EC-289, "
Component Inspection" .
OK or NG
OK >> GO TO 8.
NG >> Replace throttle control motor relay.
8.CHECK INTERMITTENT INCIDENT
Refer to EC-109, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS00KA6
THROTTLE CONTROL MOTOR RELAY
1. Apply 12V direct current between relay terminals 1 and 2.Continuity should exist.
Continuity should exist.
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EC-290
[QG (WITH EURO-OBD)]
DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
2. Check continuity between relay terminals 3 and 5.
3. If NG, replace throttle control motor relay.
Conditions Continuity
12V direct current supply
between terminals 1 and 2Ye s
No current supply No
PBIB0098E
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![NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P1128 THROTTLE CONTROL MOTOR
EC-291
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DTC P1128 THROTTLE CONTROL MOTORPFP:16119
Component DescriptionEBS00KA7
The throttle control motor is operated by NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P1128 THROTTLE CONTROL MOTOR
EC-291
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DTC P1128 THROTTLE CONTROL MOTORPFP:16119
Component DescriptionEBS00KA7
The throttle control motor is operated by](/manual-img/5/57350/w960_57350-620.png)
DTC P1128 THROTTLE CONTROL MOTOR
EC-291
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DTC P1128 THROTTLE CONTROL MOTORPFP:16119
Component DescriptionEBS00KA7
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.
On Board Diagnosis LogicEBS00KA8
This self-diagnosis has the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode and the MI lights up.
DTC Confirmation ProcedureEBS00KA9
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” and wait at least 2 seconds.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for 5 seconds.
4. If DTC is detected, go to EC-293, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1128
11 2 8Throttle 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)
Engine operating condition in fail-safe mode
ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return
spring.
SEF058Y
Page 622 of 3189
EC-292
[QG (WITH EURO-OBD)]
DTC P1128 THROTTLE CONTROL MOTOR
Wiring Diagram
EBS00KAA
YEC299A
Page 623 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P1128 THROTTLE CONTROL MOTOR
EC-293
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Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use EC NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P1128 THROTTLE CONTROL MOTOR
EC-293
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EC
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use EC](/manual-img/5/57350/w960_57350-622.png)
DTC P1128 THROTTLE CONTROL MOTOR
EC-293
[QG (WITH EURO-OBD)]
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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 result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic ProcedureEBS00KAB
1.RETIGHTEN GROUND SCREWS
1. Turn ignition switch “OFF”.
2. Loosen and retighten engine ground screws.
>> GO TO 2.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
4W (LHD
models)
BR RHD
models)Throttle control motor
(Close)[Ignition switch “ON”]
●Engine stopped.
●Shift lever position is “D” (A/T models).
●Shift lever position is “1st” (M/T models).
●Accelerator pedal is releasing.0 - 14V
5B (LHD
models)
Y (RHD
models)Throttle control motor
(Open)[Ignition switch “ON”]
●Engine stopped.
●Shift lever position is “D” (A/T models).
●Shift lever position is “1st” (M/T models).
●Accelerator pedal is depressing.0 - 14V
PBIB0534E
PBIB0533E
MBIB0095E
Page 624 of 3189
![NISSAN ALMERA N16 2003 Electronic Repair Manual EC-294
[QG (WITH EURO-OBD)]
DTC P1128 THROTTLE CONTROL MOTOR
2. CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Turn ignition switch “OFF”.
2. Disconnect electric throttle NISSAN ALMERA N16 2003 Electronic Repair Manual EC-294
[QG (WITH EURO-OBD)]
DTC P1128 THROTTLE CONTROL MOTOR
2. CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Turn ignition switch “OFF”.
2. Disconnect electric throttle](/manual-img/5/57350/w960_57350-623.png)
EC-294
[QG (WITH EURO-OBD)]
DTC P1128 THROTTLE CONTROL MOTOR
2. CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Turn ignition switch “OFF”.
2. Disconnect electric throttle control actuator harness connector.
3. Disconnect ECM harness connector.
4. Check harness continuity between the following terminals.
Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
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 THROTTLE CONTROL MOTOR
Refer to EC-294, "
Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 5.
4. CHECK INTERMITTENT INCIDENT
Refer to EC-109, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness or connectors.
5. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator.
2. Perform EC-31, "
Throttle Valve Closed Position Learning" .
3. Perform EC-31, "
Idle Air Volume Learning" .
>>INSPECTION END
Component InspectionEBS00KAC
THROTTLE CONTROL MOTOR
1. Disconnect electric throttle control actuator harness connector.
2. Check resistance between terminals 3 and 6.
3. If NG, replace electric throttle control actuator and go to next
step.
4. Perform EC-31, "
Throttle Valve Closed Position Learning" .
5. Perform EC-31, "
Idle Air Volume Learning" .
Electric throttle control
actuator terminalECM terminal Continuity
34 Should exist
5 Should not exist
64 Should not exist
5 Should exist
MBIB0254E
Resistance: Approximately 1 - 15 Ω [at 25 °C (77°F)]
PBIB0095E