2005 INFINITI FX35 Service Manual

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Page 2545 of 4731

INFINITI FX35 2005 Service Manual EC-1152
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DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
Revision: 2005 July 2005 FX
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is me

Page 2546 of 4731

INFINITI FX35 2005 Service Manual DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION EC-1153
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Revision: 2005 July 2005 FX
2. CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I
1. Check

Page 2547 of 4731

INFINITI FX35 2005 Service Manual EC-1154
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DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
Revision: 2005 July 2005 FX
6. CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-II
1. Disconnect ECM harness connector.
2. Discon

Page 2548 of 4731

INFINITI FX35 2005 Service Manual DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION EC-1155
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Revision: 2005 July 2005 FX
11 . CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1. Remove th

Page 2549 of 4731

INFINITI FX35 2005 Service Manual EC-1156
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DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
Revision: 2005 July 2005 FX
DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAYPFP:16119
Component DescriptionABS007R3
Power supply for the thr

EC-1156
[VK45DE]
DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
Revision: 2005 July 2005 FX
DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAYPFP:16119
Component DescriptionABS007R3
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 ModeABS007R4
Specification data are reference values.
On Board Diagnosis LogicABS007R5
These self-diagnoses have the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode and the MlL lights up.
DTC Confirmation ProcedureABS007R6
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 8V.
With CONSULT-II
1. Turn ignition switch ON and wait at least 1 second.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. If DTC is detected, go to EC-1159, "
Diagnostic Procedure" .
MONITOR ITEM CONDITION SPECIFICATION
THRTL RELAY
Ignition switch: ON ON
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1124
1124 Throttle control motor
relay circuit short ECM detect the throttle control motor relay is
stuck ON.
Harness or connectors
(Throttle control motor relay circuit is
shorted)
Throttle control motor relay
P1126
1126 Throttle control motor
relay circuit open ECM 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
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) b y the return
spring.
SEF058Y

Page 2550 of 4731

INFINITI FX35 2005 Service Manual DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY EC-1157
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Revision: 2005 July 2005 FX
With GST
Follow the procedure “With CONSULT-II” above.
PROCEDURE

Page 2551 of 4731

INFINITI FX35 2005 Service Manual EC-1158
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DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
Revision: 2005 July 2005 FX
Wiring DiagramABS007R7
TBWM0416E

Page 2552 of 4731

INFINITI FX35 2005 Service Manual DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY EC-1159
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Revision: 2005 July 2005 FX
Specification data are reference values and are measured between each

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