P2138 NISSAN 350Z 2007 Z33 Engine Control User Guide

DTC P2138 APP SENSOR
EC-653
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
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)
46 R/BSensor power supply
[Crankshaft position sensor
(POS)][Ignition switch: ON]5V
64 W/GSensor power supply
[Camshaft position sensor
(PHASE) (bank 2), Exhaust
valve timing control position
sensor (bank 2)][Ignition switch: ON]5V
97 RAccelerator pedal position
sensor 1[Ignition switch: ON]

Engine stopped

Accelerator pedal: Fully released0.5 - 1.0V
[Ignition switch: ON]

Engine stopped

Accelerator pedal: Fully depressed3.9 - 4.7V
98 SBAccelerator pedal position
sensor 2[Ignition switch: ON]

Engine stopped

Accelerator pedal: Fully released0.15 - 0.60V
[Ignition switch: ON]

Engine stopped

Accelerator pedal: Fully depressed1.95 - 2.40V
99 LSensor power supply
(Accelerator pedal position
sensor 1)[Ignition switch: ON]5V
100 WSensor ground
(Accelerator pedal position
sensor 1)[Engine is running]

Warm-up condition

Idle speed0V
103 GSensor power supply
(Accelerator pedal position
sensor 2)[Ignition switch: ON]5V
104 GYSensor ground
(Accelerator pedal position
sensor 2)[Engine is running]

Warm-up condition

Idle speed0V
107 BRSensor power supply
(EVAP control system pres-
sure sensor)[Ignition switch: ON]5V
111 O RSensor power supply
(Refrigerant pressure sen-
sor)[Ignition switch: ON]5V

EC-654
DTC P2138 APP SENSOR
Revision: 2006 November2007 350Z
Diagnostic ProcedureNBS000HI
1. CHECK GROUND CONNECTIONS
Models with VDC system, navigation system or telephone
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body. Refer to EC-150, "
Ground Inspection" .
Models without VDC system, navigation system and telephone
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body. Refer to EC-150, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
1. Body ground E17 2. Body ground E43 3. Body ground B102
:Vehicle front
1. Body ground E17 2. Body ground E43 3. Body ground F152
(Passenger side view with dash side
finisher removed)
:Vehicle front
PBIB3560E
PBIB3561E

DTC P2138 APP SENSOR
EC-655
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
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 terminal 6 and ground with
CONSULT-III or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E108, M15

Harness for open or short between ECM and APP 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-III or tester.
OK or NG
OK >> GO TO 9.
NG >> GO TO 5.
PBIB1080E
Voltage: Approximately 5V
PBIB0914E
Voltage: Approximately 5V
PBIB0915E

EC-656
DTC P2138 APP SENSOR
Revision: 2006 November2007 350Z
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 103.
Refer to Wiring Diagram.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E108, M15

Harness for open between ECM and APP sensor
>> Repair open circuit.
7. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-III
Check harness for short to power and short to ground, between the following terminals.
OK or NG
OK >> GO TO 8.
NG >> Repair short to ground or short to power in harness or connectors.
8. CHECK COMPONENTS
Check the following.

Crankshaft position sensor (POS) (Refer to EC-393, "Component Inspection" .)

Camshaft position sensor (PHASE) (bank 2) (Refer to EC-405, "Component Inspection" .)

Exhaust valve timing control position sensor (bank 2) (Refer to EC-539, "Component Inspection" .)

EVAP control system pressure sensor (Refer to EC-464, "Component Inspection" .)

Refrigerant pressure sensor (Refer to AT C - 8 0 , "COMPONENT INSPECTION" .)
OK or NG
OK >> GO TO 15.
NG >> Replace malfunctioning component.Continuity should exist.
ECM terminal Sensor terminal Reference Wiring Diagram
46 CKP sensor (POS) terminal 1EC-388
64CMP sensor (PHASE) (bank 2) terminal 1EC-399EVT control position sensor (bank 2) terminal 1EC-532
103 APP sensor terminal 4EC-643
107 EVAP control system pressure sensor terminal 3EC-458
111 Refrigerant pressure sensor terminal 1EC-711

DTC P2138 APP SENSOR
EC-657
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2006 November2007 350Z
9. CHECK APP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between the following;
APP sensor terminal 3 and ECM terminal 100.
APP sensor terminal 1 and ECM terminal 104,
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 11.
NG >> GO TO 10.
10. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E108, M15

Harness for open or short between ECM and APP sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
11 . CHECK APP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between the following;
ECM terminal 97 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 13.
NG >> GO TO 12.
12. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E108, M15

Harness for open or short between ECM and APP sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
13. CHECK APP SENSOR
Refer to EC-658, "
Component Inspection" .
OK or NG
OK >> GO TO 15.
NG >> GO TO 14.Continuity should exist.
Continuity should exist.

EC-658
DTC P2138 APP SENSOR
Revision: 2006 November2007 350Z
14. REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Perform EC-77, "
Accelerator Pedal Released Position Learning" .
3. Perform EC-77, "
Throttle Valve Closed Position Learning" .
4. Perform EC-77, "
Idle Air Volume Learning" .
>>INSPECTION END
15. CHECK INTERMITTENT INCIDENT
Refer to EC-141, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionNBS000HJ
ACCELERATOR PEDAL POSITION SENSOR
1. Reconnect all harness connectors disconnected.
2. Turn ignition switch ON.
3. Check voltage between ECM terminals 97 (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-77, "
Accelerator Pedal Released Position Learning" .
6. Perform EC-77, "
Throttle Valve Closed Position Learning" .
7. Perform EC-77, "
Idle Air Volume Learning" .
Removal and InstallationNBS000HK
ACCELERATOR PEDAL
Refer to ACC-3, "ACCELERATOR CONTROL SYSTEM" .
Terminal Accelerator pedal Voltage
97
(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
PBIB3582E