2006 INFINITI QX56 Factory Service Manual

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Page 1745 of 3383

INFINITI QX56 2006 Factory Service Manual EC-534Revision: November 2009
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTION
2006 QX56
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTIONPFP:16119
DescriptionUBS00H7I
NOTE:
If DTC P2101 is displayed with DTC

EC-534Revision: November 2009
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTION
2006 QX56
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTIONPFP:16119
DescriptionUBS00H7I
NOTE:
If DTC P2101 is displayed with DTC P2100 or 2119, first perform the trouble diagnosis for DTC P2100
or P2119. Refer to EC-528, "
DTC P2100, P2103 THROTTLE CONTROL MOTOR RELAY" or EC-545,
"DTC P2119 ELECTRIC THROTTLE CONTROL ACTUATOR" .
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.
On Board Diagnosis LogicUBS00H7J
This self-diagnosis has the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode and the MIL lights up.
DTC Confirmation ProcedureUBS00H7K
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11V when engine
is running.
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-536, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2101
2101 Electric throttle control
performance Electric throttle control function does not oper-
ate properly.
Harness or connectors
(Throttle control motor circuit is open or
shorted)
Electric throttle control actuator
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 1746 of 3383

INFINITI QX56 2006 Factory Service Manual DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTIONEC-535
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Revision: November 2009 2006 QX56
Wiring DiagramUBS00H7L
BBWA2099E

Page 1747 of 3383

INFINITI QX56 2006 Factory Service Manual EC-536Revision: November 2009
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTION
2006 QX56
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured

Page 1748 of 3383

INFINITI QX56 2006 Factory Service Manual DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTIONEC-537
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Revision: November 2009 2006 QX56
2. CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I
1. Check voltage between ECM

Page 1749 of 3383

INFINITI QX56 2006 Factory Service Manual EC-538Revision: November 2009
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTION
2006 QX56
6. CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II
1. Disconnect ECM harness connector.
2. Disconnect IP

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INFINITI QX56 2006 Factory Service Manual DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTIONEC-539
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10. CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1. Remove the intake air duct.
2.

Page 1751 of 3383

INFINITI QX56 2006 Factory Service Manual EC-540Revision: November 2009
DTC P2118 THROTTLE CONTROL MOTOR
2006 QX56
DTC P2118 THROTTLE CONTROL MOTORPFP:16119
Component DescriptionUBS00H7V
The throttle control motor is operated by the ECM and i

Page 1752 of 3383

INFINITI QX56 2006 Factory Service Manual DTC P2118 THROTTLE CONTROL MOTOREC-541
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Revision: November 2009 2006 QX56
Wiring DiagramUBS00H7Y
BBWA2101E

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