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EC-580
[VQ35DE]
DTC P2138 APP SENSOR
Revision: 2004 November 2004 FX35/FX45
2. CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor harness
connector.
2. Turn ignition switch ON.
3. Check voltage between APP sensor terminals 6 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E211, M41
Harness for open or short between ECM and accelerator pedal position sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-I
Check voltage between APP sensor terminal 4 and ground with
CONSULT-II or tester.
1.
OK or NG
OK >> GO TO 11.
NG >> GO TO 5.
PBIB1580E
Voltage: Approximately 5V
PBIB0914E
Voltage: Approximately 5V
PBIB0915E
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![INFINITI FX35 2004 Service Manual DTC P2138 APP SENSOR
EC-581
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5. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect ECM harne INFINITI FX35 2004 Service Manual DTC P2138 APP SENSOR
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5. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect ECM harne](/manual-img/42/57021/w960_57021-1921.png)
DTC P2138 APP SENSOR
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5. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between APP sensor terminal 4 and ECM terminal 91.
Refer to wiring diagram.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E211, M41
Harness for open or short between ECM and accelerator pedal position sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-III
Check the following.
Harness for short to power and short to ground, between the following terminals.
OK or NG
OK >> GO TO 9.
NG >> GO TO 8.
8. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E211, M41
Harness for open or short between ECM and accelerator pedal position sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK THROTTLE POSITION SENSOR
Refer to EC-575, "
Component Inspection" .
OK or NG
OK >> GO TO 17.
NG >> GO TO 10.
10. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace electric throttle control actuator.
2. Perform EC-49, "
Throttle Valve Closed Position Learning" .
3. Perform EC-49, "
Idle Air Volume Learning" .
>>INSPECTION END Continuity should exist.
ECM terminal Sensor terminal Reference Wiring Diagram
91 APP sensor terminal 4EC-578
47 Electric throttle control actuator terminal 1EC-192
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![INFINITI FX35 2004 Service Manual EC-582
[VQ35DE]
DTC P2138 APP SENSOR
Revision: 2004 November 2004 FX35/FX45
11 . CHECK APP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3 INFINITI FX35 2004 Service Manual EC-582
[VQ35DE]
DTC P2138 APP SENSOR
Revision: 2004 November 2004 FX35/FX45
11 . CHECK APP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3](/manual-img/42/57021/w960_57021-1922.png)
EC-582
[VQ35DE]
DTC P2138 APP SENSOR
Revision: 2004 November 2004 FX35/FX45
11 . CHECK APP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between APP sensor terminals 3 and ECM terminal 82 (sensor 1), APP sensor
terminal 1 and ECM terminal 83 (sensor 2).
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 13.
NG >> GO TO 12.
12. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E211, M41
Harness for open or short between ECM and accelerator pedal position sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
13. CHECK APP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 106 and APP sensor terminal 5, ECM terminal 98 and
APP sensor terminal 2.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 15.
NG >> GO TO 14.
14. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E211, M41
Harness for open or short between ECM and accelerator pedal position sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
15. CHECK APP SENSOR
Refer to EC-584, "
Component Inspection" .
OK or NG
OK >> GO TO 17.
NG >> GO TO 16.Continuity should exist.
Continuity should exist.
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DTC P2138 APP SENSOR
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16. REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Perform EC-49, "
Accelerator Pedal Released Position Learning" .
3. Perform EC-49, "
Throttle Valve Closed Position Learning" .
4. Perform EC-49, "
Idle Air Volume Learning" .
>>INSPECTION END
17. CHECK INTERMITTENT INCIDENT
Refer to EC-135, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
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EC-584
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DTC P2138 APP SENSOR
Revision: 2004 November 2004 FX35/FX45
Component InspectionABS00CIH
ACCELERATOR PEDAL POSITION SENSOR
1. Reconnect all harness connectors disconnected.
2. Turn ignition switch ON.
3. Check voltage between ECM terminals 106 (APP sensor 1 sig-
nal), 98 (APP sensor 2 signal) and ground under the following
conditions.
4. If NG, replace accelerator pedal assembly and go to next step.
5. Perform EC-49, "
Accelerator Pedal Released Position Learning" .
6. Perform EC-49, "
Throttle Valve Closed Position Learning" .
7. Perform EC-49, "
Idle Air Volume Learning" .
Removal and InstallationABS00CII
ACCELERATOR PEDAL
Refer to ACC-3, "ACCELERATOR CONTROL SYSTEM" .
Terminal Accelerator pedal Voltage
106
(Accelerator pedal position
sensor 1)Fully released 0.5 - 1.0V
Fully depressed 3.9 - 4.7V
98
(Accelerator pedal position
sensor 2)Fully released 0.15 - 0.60V
Fully depressed 1.95 - 2.40V
MBIB0023E
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IGNITION SIGNAL
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IGNITION SIGNALPFP:22448
Component DescriptionABS006Y4
IGNITION COIL & POWER TRANSISTOR
The ignition signal from the ECM is sent to and amplified by the power transistor. The power transistor turns
ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil
secondary circuit.
PBIB1560E
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EC-586
[VQ35DE]
IGNITION SIGNAL
Revision: 2004 November 2004 FX35/FX45
Wiring DiagramABS006Y5
TBWM0261E
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IGNITION SIGNAL
EC-587
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Revision: 2004 November 2004 FX35/FX45
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.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
111 W / BECM relay
(Self shut-off)[Engine is running]
[Ignition switch: OFF]
For a few seconds after turning ignition
switch OFF0 - 1.5V
[Ignition switch: OFF]
More than a few seconds passed after turn-
ing ignition switch OFFBATTERY VOLTAGE
(11 - 14V)
11 9
120R
RPower supply for ECM[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)