2001 NISSAN X-TRAIL Service Repair Manual

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Page 937 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
EC-587
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EC
On Board Diagnosis LogicEBS00NHR
This self-diagnosis has the one trip detection logic.
FAIL-SAFE

Page 938 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-588
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DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
Wiring Diagram
EBS00NHT
TBWA0180E

Page 939 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
EC-589
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Diagnostic ProcedureEBS00NHU
1.RETIGHTEN GROUND SCREWS
1. Turn ignition switch “OFF”.
2. Loos

Page 940 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-590
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DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
4. DETECT MALFUNCTIONING PART
Check the following.
●15A fuse
●Harness for open or short between throttle control motor

Page 941 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
EC-591
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9.CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch �

Page 942 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-592
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DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
14. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator.
2. Perform EC-449, "

Page 943 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
EC-593
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DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAYPFP:16119
Component DescriptionEBS00NHW
Power suppl

DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
EC-593
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EC
DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAYPFP:16119
Component DescriptionEBS00NHW
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.
CONSULT-II Reference Value in Data Monitor ModeEBS00NHX
Specification data are reference values.
ECM Terminals and Reference ValueEBS00NHY
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.
On Board Diagnosis LogicEBS00NHZ
These self-diagnoses have the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode and the MI lights up.
DTC Confirmation ProcedureEBS00NI0
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.
PROCEDURE FOR DTC P1124
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.
MONITOR ITEM CONDITION SPECIFICATION
THRTL RELAY
●Ignition switch: ON ON
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
11 2 W / RThrottle control motor
relay[Ignition switch “OFF”]BATTERY VOLTAGE
(11 - 14V)
[Ignition switch “ON”]0 - 1.0V
11 3 W / BThrottle control motor
relay power supply[Ignition switch “ON”]BATTERY VOLTAGE
(11 - 14V)
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1124
11 2 4Throttle 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
P1126
11 2 6Throttle control motor
relay circuit openECM detects a voltage of power source for throt-
tle control motor is excessively low.
●Harness or connectors
(Throttle control motor relay circuit is
open)
●Throttle control motor relay
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.

Page 944 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-594
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DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
With CONSULT-II
1. Turn ignition switch “ON” and wait at least 1 second.
2. Select “DATA MONITOR” mode with CONSU

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