Nissan Cube. Manual — part 377
EC-394
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
P2138 APP SENSOR
Diagnosis Procedure
INFOID:0000000009947533
1.
CHECK GROUND CONNECTION
1.
Turn ignition switch OFF.
2.
Check ground connection E38. Refer to
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT
1.
Disconnect accelerator pedal position (APP) sensor harness connector.
2.
Turn ignition switch ON.
3.
Check the voltage between APP sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair open circuit or short to ground or shot to power in harness or connectors.
3.
CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-I
1.
Check the voltage between APP sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 4.
4.
CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-II
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between APP sensor harness connector and ECM harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair open circuit or short to ground or shot to power in harness or connectors.
5.
CHECK SENSOR POWER SUPPLY CIRCUIT
Check harness for short to power and short to ground, between the following terminals.
APP sensor
Ground
Voltage
Connector
Terminal
E110
4
Ground
Approx. 5 V
APP sensor
Ground
Voltage
Connector
Terminal
E110
5
Ground
Approx. 5 V
APP sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
E110
4
E16
106
Existed
P2138 APP SENSOR
EC-395
< DTC/CIRCUIT DIAGNOSIS >
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Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair short to ground or short to power in harness or connectors.
6.
CHECK COMPONENTS
Check the following.
• Crankshaft position sensor (POS) (Refer to
EC-244, "Component Inspection"
• EVAP control system pressure sensor (Refer to
EC-279, "Component Inspection"
.)
• Refrigerant pressure sensor (Refer to
.)
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Replace malfunctioning component.
7.
CHECK APP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between APP sensor harness connector and ECM harness connector as per the fol-
lowing.
4.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair open circuit or short to ground or shot to power in harness or connectors.
8.
CHECK APP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check the continuity between APP sensor harness connector and ECM harness connector as per the fol-
lowing.
2.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair open circuit or short to ground or shot to power in harness or connectors.
9.
CHECK APP SENSOR
EC-396, "Component Inspection"
Is the inspection result normal?
ECM
Sensor
Connector
Terminal
Name
Connector
Terminal
F8
74
Refrigerant pressure sensor
E17
3
75
CKP sensor (POS)
F15
1
76
EVAP control system pressure sen-
sor
B104
3
77
Battery current sensor
F53
1
E16
102
APP sensor
E12
5
APP sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
E110
2
E16
111
Existed
1
104
APP sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
E110
3
E16
110
Existed
6
103
EC-396
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
P2138 APP SENSOR
YES
>> GO TO 11.
NO
>> GO TO 10.
10.
REPLACE ACCELERATOR PEDAL ASSEMBLY
1.
Replace accelerator pedal assembly.
2.
EC-396, "Special Repair Requirement"
>> INSPECTION END
11.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000009947534
1.
CHECK ACCELERATOR PEDAL POSITION SENSOR
1.
Reconnect all harness connectors disconnected.
2.
Turn ignition switch ON.
3.
Check the voltage between ECM harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
REPLACE ACCELERATOR PEDAL ASSEMBLY
1.
Replace accelerator pedal assembly.
2.
EC-396, "Special Repair Requirement"
>> INSPECTION END
Special Repair Requirement
INFOID:0000000009947535
1.
PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
Refer to
EC-19, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Requirement"
.
>> GO TO 2.
2.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
EC-19, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"
>> GO TO 3.
3.
PERFORM IDLE AIR VOLUME LEARNING
EC-20, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"
.
>> END
ECM
Ground
Condition
Voltage
Connector
Terminal
E16
110
(APP sensor 1
signal)
Ground
Accelerator ped-
al
Fully released
0.6 - 0.9 V
Fully depressed
3.9 - 4.7 V
103
(APP sensor 2
signal)
Fully released
0.3 - 0.6 V
Fully depressed
1.95 - 2.4 V
ASCD BRAKE SWITCH
EC-397
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
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ASCD BRAKE SWITCH
Description
INFOID:0000000009947536
When the brake pedal is depressed, ASCD brake switch is turned OFF and stop lamp switch is turned ON.
ECM detects the state of the brake pedal by this input of two kinds (ON/OFF signal).
Refer to
for the ASCD function.
Component Function Check
INFOID:0000000009947537
1.
CHECK FOR ASCD BRAKE SWITCH FUNCTION
With CONSULT
1.
Turn ignition switch ON.
2.
Select “BRAKE SW1” in “DATA MONITOR” mode with CONSULT.
3.
Check “BRAKE SW1” indication under the following conditions.
Without CONSULT
1.
Turn ignition switch ON.
2.
Check the voltage between ECM harness connector terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Go to
Diagnosis Procedure
INFOID:0000000009947538
1.
CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT-I
1.
Turn ignition switch OFF.
2.
Disconnect ASCD brake switch harness connector.
3.
Turn ignition switch ON.
4.
Check the voltage between ASCD brake switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO-1
>> CVT models: GO TO 2.
NO-2
>> M/T models: GO TO 3.
2.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E105, M77
Monitor item
Condition
Indication
BRAKE SW1
Brake pedal (CVT)
Brake pedal and clutch pedal (M/T)
Slightly de-
pressed
OFF
Fully released
ON
ECM
Condition
Voltage
Connector
+
-
Terminal
Terminal
E16
100
(ASCD brake
switch signal)
108
Brake pedal (CVT)
Brake pedal and clutch pedal (M/T)
Slightly de-
pressed
Approx. 0 V
Fully released
Battery voltage
ASCD brake switch
Ground
Voltage
Connector
Terminal
E112
1
Ground
Battery voltage
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