Nissan Murano Z50 (2003 year). Manual — part 117
DTC P2138 APP SENSOR
EC-591
C
D
E
F
G
H
I
J
K
L
M
A
EC
Revision; 2004 April
2003 Murano
Wiring Diagram
ABS004O5
TBWA0716E
EC-592
DTC P2138 APP SENSOR
Revision; 2004 April
2003 Murano
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.
Diagnostic Procedure
ABS004O6
1.
RETIGHTEN GROUND SCREWS
1.
Turn ignition switch “OFF”.
2.
Loosen and retighten engine ground screws.
>> GO TO 2.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
47
G
Sensors' power supply
(Throttle position sensor)
[Ignition switch “ON”]
Approximately 5V
82
B
Sensors' ground
(APP sensor 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
83
G
Sensors' ground
(APP sensor 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
90
R/W
Sensors' power supply
(APP sensor 1)
[Ignition switch “ON”]
Approximately 5V
91
P
Sensors' power supply
(APP sensor 2)
[Ignition switch “ON”]
Approximately 5V
98
W/R
Accelerator pedal position
sensor 2
[Ignition switch "ON"]
●
Engine stopped
●
Accelerator pedal fully released
0.25 - 0.50V
[Ignition switch "ON"]
●
Engine stopped
●
Accelerator pedal fully depressed
2.0 - 2.5V
106
W
Accelerator pedal position
sensor 1
[Ignition switch "ON"]
●
Engine stopped
●
Accelerator pedal fully released
0.5 - 1.0V
[Ignition switch "ON"]
●
Engine stopped
●
Accelerator pedal fully depressed
4.2 - 4.8V
PBIB1298E
DTC P2138 APP SENSOR
EC-593
C
D
E
F
G
H
I
J
K
L
M
A
EC
Revision; 2004 April
2003 Murano
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 4 and ground with
CONSULT-II or tester.
OK or NG
OK
>> GO TO 3.
NG
>> Repair open circuit or short to ground or short to power
in harness or connectors.
3.
CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-I
Check voltage between APP sensor terminal 2 and ground with
CONSULT-II or tester.
1.
OK or NG
OK
>> GO TO 8.
NG
>> GO TO 4.
4.
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 2 and ECM terminal 91.
Refer to wiring diagram.
OK or NG
OK
>> GO TO 5.
NG
>> Repair or replace open circuit.
PBIB1366E
Voltage: Approximately 5V
PBIB1393E
Voltage: Approximately 5V
PBIB1394E
Continuity should exist.
EC-594
DTC P2138 APP SENSOR
Revision; 2004 April
2003 Murano
5.
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 6.
NG
>> Repair short to ground or short to power in harness or connectors.
6.
CHECK THROTTLE POSITION SENSOR
Refer to
EC-588, "Component Inspection"
OK or NG
OK
>> GO TO 12.
NG
>> GO TO 7.
7.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1.
Replace electric throttle control actuator.
2.
Perform
EC-64, "Throttle Valve Closed Position Learning"
3.
Perform
EC-64, "Idle Air Volume Learning"
>> INSPECTION END
8.
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 terminal 3 and ECM terminal 83, APP sensor terminal 5
and ECM terminal 82.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 9.
NG
>> Repair open circuit or short to power or short to power in harness or connectors.
9.
CHECK APP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check harness continuity between ECM terminal 106 and APP sensor terminal 1, ECM terminal 98 and
APP sensor terminal 6.
Refer to Wiring Diagram.
2.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 10.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
ECM terminal
Sensor terminal
Reference Wiring Diagram
91
APP sensor terminal 2
47
Electric throttle control actuator terminal 1
Continuity should exist.
Continuity should exist.
DTC P2138 APP SENSOR
EC-595
C
D
E
F
G
H
I
J
K
L
M
A
EC
Revision; 2004 April
2003 Murano
10.
CHECK APP SENSOR
Refer to
EC-595, "Component Inspection"
OK or NG
OK
>> GO TO 12.
NG
>> GO TO 11.
11.
REPLACE ACCELERATOR PEDAL ASSEMBLY
1.
Replace accelerator pedal assembly.
2.
Perform
EC-63, "Accelerator Pedal Released Position Learning"
.
3.
Perform
EC-64, "Throttle Valve Closed Position Learning"
4.
Perform
EC-64, "Idle Air Volume Learning"
>> INSPECTION END
12.
CHECK INTERMITTENT INCIDENT
Refer to
EC-151, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
>> INSPECTION END
Component Inspection
ABS004O7
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 engine ground under the fol-
lowing conditions.
4.
If NG, replace accelerator pedal assembly and go to next step.
5.
Perform
EC-63, "Accelerator Pedal Released Position Learning"
6.
Perform
EC-64, "Throttle Valve Closed Position Learning"
7.
Perform
EC-64, "Idle Air Volume Learning"
Removal and Installation
ABS004O8
ACCELERATOR PEDAL
Refer to
ACC-2, "ACCELERATOR CONTROL SYSTEM"
Terminal
Accelerator pedal
Voltage
106
(Accelerator pedal position
sensor 1)
Fully released
0.5 - 1.0V
Fully depressed
4.2 - 4.8V
98
(Accelerator pedal position
sensor 2)
Fully released
0.25 - 0.50V
Fully depressed
2.0 - 2.5V
MBIB0023E
EC-596
IGNITION SIGNAL
Revision; 2004 April
2003 Murano
IGNITION SIGNAL
PFP:22448
Component Description
ABS004O9
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 sec-
ondary circuit.
PBIB1370E
IGNITION SIGNAL
EC-597
C
D
E
F
G
H
I
J
K
L
M
A
EC
Revision; 2004 April
2003 Murano
Wiring Diagram
ABS004OA
TBWA0387E
EC-598
IGNITION SIGNAL
Revision; 2004 April
2003 Murano
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
COLOR
ITEM
CONDITION
DATA (DC Voltage)
111
W/B
ECM relay
(Self shut-off)
[Engine is running]
[Ignition switch “OFF”]
●
For a few seconds after turning ignition
switch “OFF”
0 - 1.5V
[Ignition switch “OFF”]
●
A few seconds passed after turning ignition
switch “OFF”
BATTERY VOLTAGE
(11 - 14V)
119
120
R/B
R/B
Power supply for ECM
[Ignition switch “ON”]
BATTERY VOLTAGE
(11 - 14V)
IGNITION SIGNAL
EC-599
C
D
E
F
G
H
I
J
K
L
M
A
EC
Revision; 2004 April
2003 Murano
TBWA0388E
EC-600
IGNITION SIGNAL
Revision; 2004 April
2003 Murano
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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
60
61
62
BR/R
L/R
Y/R
Ignition signal No. 5
Ignition signal No. 3
Ignition signal No. 1
[Engine is running]
●
Warm-up condition
●
Idle speed
0 - 0.3V
[Engine is running]
●
Warm-up condition
●
Engine speed is 2,500 rpm.
0.1 - 0.6V
SEC986C
SEC987C
IGNITION SIGNAL
EC-601
C
D
E
F
G
H
I
J
K
L
M
A
EC
Revision; 2004 April
2003 Murano
TBWA0389E
EC-602
IGNITION SIGNAL
Revision; 2004 April
2003 Murano
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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic Procedure
ABS004OB
1.
CHECK ENGINE START
Turn ignition switch “OFF”, and restart engine.
Is engine running?
Yes or No
Yes (With CONSULT-II)>>GO TO 2.
Yes (Without CONSULT-II)>>GO TO 3.
No
>> GO TO 4.
2.
CHECK OVERALL FUNCTION
With CONSULT-II
1.
Perform “POWER BALANCE” in “ACTIVE TEST” mode with
CONSULT-II.
2.
Make sure that each circuit produces a momentary engine
speed drop.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 10.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
79
80
81
GR/R
GR
G/R
Ignition signal No. 6
Ignition signal No. 4
Ignition signal No. 2
[Engine is running]
●
Warm-up condition
●
Idle speed
0 - 0.3V
[Engine is running]
●
Warm-up condition
●
Engine speed is 2,500 rpm.
0.1 - 0.6V
SEC986C
SEC987C
PBIB0133E
IGNITION SIGNAL
EC-603
C
D
E
F
G
H
I
J
K
L
M
A
EC
Revision; 2004 April
2003 Murano
3.
CHECK OVERALL FUNCTION
Without CONSULT-II
1.
Let engine idle.
2.
Read the voltage signal between ECM terminals 60, 61, 62, 79,
80, 81 and ground with an oscilloscope.
3.
Verify that the oscilloscope screen shows the signal wave as
shown below.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 10.
4.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-I
1.
Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
2.
Check voltage between ECM terminals 119, 120 and ground
with CONSULT-II or tester.
OK or NG
OK
>> GO TO 5.
NG
>> Go to
EC-152, "POWER SUPPLY CIRCUIT FOR ECM"
.
PBIB1186E
SEC986C
Voltage: Battery voltage
MBIB0034E
EC-604
IGNITION SIGNAL
Revision; 2004 April
2003 Murano
5.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
1.
Turn ignition switch “OFF”.
2.
Disconnect condenser harness connector.
3.
Turn ignition switch “ON”.
4.
Check voltage between condenser terminal 1 and ground with
CONSULT-II or tester.
OK or NG
OK
>> GO TO 8.
NG
>> GO TO 6.
6.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III
1.
Turn ignition switch OFF.
2.
Disconnect IPDM E/R harness connector.
3.
Check harness continuity between IPDM E/R terminal 35 and condenser terminal 1.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 17.
NG
>> GO TO 7.
7.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors E19, F3
●
Harness for open or short between IPDM E/R and condenser
>> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB1371E
Voltage: Battery voltage
PBIB0624E
Continuity should exist.
IGNITION SIGNAL
EC-605
C
D
E
F
G
H
I
J
K
L
M
A
EC
Revision; 2004 April
2003 Murano
8.
CHECK CONDENSER GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Check harness continuity between condenser terminal 2 and engine ground.
Refer to Wiring Diagram.
3.
Also check harness for short to power.
OK or NG
OK
>> GO TO 9.
NG
>> Repair open circuit or short to power in harness or connectors.
9.
CHECK CONDENSER
Refer to
EC-607, "Component Inspection"
OK or NG
OK
>> GO TO 10.
NG
>> Replace condenser.
10.
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-IV
1.
Turn ignition switch OFF.
2.
Reconnect all harness connectors disconnected.
3.
Disconnect ignition coil harness connector.
4.
Turn ignition switch ON.
5.
Check voltage between ignition coil terminal 3 and ground with
CONSULT-II or tester.
OK or NG
OK
>> GO TO 12.
NG
>> GO TO 11.
11.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors F32, F221
●
Harness for open or short between ignition coil and harness connector F3
>> Repair or replace harness or connectors.
Continuity should exist.
Voltage: Battery voltage
PBIB1370E
PBIB0138E
EC-606
IGNITION SIGNAL
Revision; 2004 April
2003 Murano
12.
CHECK IGNITION COIL GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Check harness continuity between ignition coil terminal 2 and engine ground.
Refer to Wiring Diagram.
3.
Also check harness for short to power.
OK or NG
OK
>> GO TO 14.
NG
>> GO TO 13.
13.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors F221, F32
●
Harness for open or short between ignition coil and engine ground
>> Repair open circuit or short to power in harness or connectors.
14.
CHECK IGNITION COIL OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Disconnect ECM harness connector.
2.
Check harness continuity between ECM terminals 60, 61, 62, 79, 80, 81 and ignition coil terminal 1.
Refer to Wiring Diagram.
3.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 16.
NG
>> GO TO 15.
15.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors F32, F221
●
Harness for open or short between ignition coil and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
16.
CHECK IGNITION COIL WITH POWER TRANSISTOR
Refer to
EC-607, "Component Inspection"
OK or NG
OK
>> GO TO 17.
NG
>> Replace ignition coil with power transistor.
17.
CHECK INTERMITTENT INCIDENT
Refer to
EC-151, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
OK or NG
OK
>> Replace IPDM E/R.
NG
>> Repair open circuit or short to ground or short to power in harness connectors.
Continuity should exist.
Continuity should exist.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст