2008 INFINITI FX35 Service Manual

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Page 2321 of 3924

INFINITI FX35 2008 Service Manual
DTC P1800 VIAS CONTROL SOLENOID VALVEEC-1081
< SERVICE INFORMATION > [VK45DE]
C
D
E
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G H
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M A
EC
NP
O
Wiring DiagramINFOID:0000000001326965
Specification data are reference values
and are me

Page 2322 of 3924

INFINITI FX35 2008 Service Manual
EC-1082
< SERVICE INFORMATION >[VK45DE]
DTC P1800 VIAS CONT
ROL SOLENOID VALVE
Diagnosis Procedure
INFOID:0000000001326966
1.CHECK VIAS CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition s

Page 2323 of 3924

INFINITI FX35 2008 Service Manual
DTC P1800 VIAS CONTROL SOLENOID VALVEEC-1083
< SERVICE INFORMATION > [VK45DE]
C
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M A
EC
NP
O
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in

Page 2324 of 3924

INFINITI FX35 2008 Service Manual
EC-1084
< SERVICE INFORMATION >[VK45DE]
DTC P1805 BRAKE SWITCH
DTC P1805 BRAKE SWITCH
DescriptionINFOID:0000000001326969
Brake switch signal is applied to the ECM through t
he stop lamp switch when t

Page 2325 of 3924

INFINITI FX35 2008 Service Manual
DTC P1805 BRAKE SWITCHEC-1085
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
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K L
M A
EC
NP
O
Wiring DiagramINFOID:0000000001326973
Specification data are reference values
and are measured between

Page 2326 of 3924

INFINITI FX35 2008 Service Manual
EC-1086
< SERVICE INFORMATION >[VK45DE]
DTC P1805 BRAKE SWITCH
Diagnosis Procedure
INFOID:0000000001326974
1.CHECK STOP LAMP SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Check the stop lamp when de

Page 2327 of 3924

INFINITI FX35 2008 Service Manual
DTC P1805 BRAKE SWITCHEC-1087
< SERVICE INFORMATION > [VK45DE]
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EC
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1. Disconnect ECM harness connector.
2. Disconnect stop lamp switch harness connector.
3. Check harness

Page 2328 of 3924

INFINITI FX35 2008 Service Manual
EC-1088
< SERVICE INFORMATION >[VK45DE]
DTC P2100, P2103 THROTTLE
CONTROL MOTOR RELAY
DTC P2100, P2103 THROTTLE CONTROL MOTOR RELAY
Component DescriptionINFOID:0000000001326976
Power supply for the

EC-1088
< SERVICE INFORMATION >[VK45DE]
DTC P2100, P2103 THROTTLE
CONTROL MOTOR RELAY
DTC P2100, P2103 THROTTLE CONTROL MOTOR RELAY
Component DescriptionINFOID:0000000001326976
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-III Reference Value in Data Monitor ModeINFOID:0000000001326977
Specification data are reference values.
On Board Diagn osis LogicINFOID:0000000001326978
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 ProcedureINFOID:0000000001326979
NOTE:
If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
PROCEDURE FOR DTC P2100
1. Turn ignition switch ON and wait at least 2 seconds.
2. Start engine and let it idle for 5 seconds.
3. Check DTC.
4. If DTC is detected, go to EC-1090, "
Diagnosis Procedure".
PROCEDURE FOR DTC P2103
TESTING CONDITION:
Before performing the following procedure, co nfirm that battery voltage is more than 8V.
1. Turn ignition switch ON and wait at least 1 second.
2. Check DTC.
3. If DTC is detected, go to EC-1090, "
Diagnosis Procedure".
MONITOR ITEM CONDITION SPECIFICATION
THRTL RELAY Ignition switch: ON ON
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2100
2100 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 moto r relay circuit is
open)
Throttle control motor relay
P2103
2103 Throttle control motor
relay circuit short ECM detect the throttle control motor relay is
stuck ON. Harness or connectors
(Throttle control moto r relay circuit is
shorted)
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.
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