Nissan Frontier. Instruction — part 586
P2138 APP SENSOR
EC-915
< DTC/CIRCUIT DIAGNOSIS >
[VQ40DE FOR USA AND CANADA]
C
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EC
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>> INSPECTION END
Component Inspection
INFOID:0000000009481626
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 signal), 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-590, "Accelerator Pedal Released Position Learning"
.
6. Perform
EC-591, "Throttle Valve Closed Position Learning"
7. Perform
EC-591, "Idle Air Volume Learning"
.
Terminal
Accelerator pedal
Voltage
97
(Accelerator pedal position
sensor 1)
Fully released
0.65 - 0.87V
Fully depressed
More than 4.3V
98
(Accelerator pedal position
sensor 2)
Fully released
0.28 - 0.48V
Fully depressed
More than 2.0V
EC-916
< DTC/CIRCUIT DIAGNOSIS >
[VQ40DE FOR USA AND CANADA]
ASCD BRAKE SWITCH
ASCD BRAKE SWITCH
Component Description
INFOID:0000000009481627
When the brake pedal is depressed, brake pedal position switch is turned OFF and stop lamp switch is turned
ON. ECM detects the state of the brake pedal by two types of input (ON/OFF signal).
Diagnosis Procedure
INFOID:0000000009481628
A/T MODELS
1.
CHECK OVERALL FUNCTION-I
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 voltage between ECM terminal 126 and ground under the following conditions.
OK or NG
OK
>> GO TO 2.
NG
>> GO TO 3.
2.
CHECK OVERALL FUNCTION-II
With CONSULT
Check “BRAKE SW2” indication in “DATA MONITOR” mode.
Without CONSULT
Check voltage between ECM terminal 122 and ground under the following conditions.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 7.
3.
CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
CONDITION
INDICATION
Brake pedal: Slightly depressed
OFF
Brake pedal: Fully released
ON
CONDITION
VOLTAGE
Brake pedal: Slightly depressed
Approximately 0V
Brake pedal: Fully released
Battery voltage
CONDITION
INDICATION
Brake pedal: Fully released
OFF
Brake pedal: Slightly depressed
ON
CONDITION
VOLTAGE
Brake pedal: Fully released
Approximately 0V
Brake pedal: Slightly depressed
Battery voltage
ASCD BRAKE SWITCH
EC-917
< DTC/CIRCUIT DIAGNOSIS >
[VQ40DE FOR USA AND CANADA]
C
D
E
F
G
H
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K
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M
A
EC
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P
O
2. Disconnect brake pedal position switch (1) harness connector.
-
Stop lamp switch (2)
3. Turn ignition switch ON.
4. Check voltage between brake pedal position switch terminal 1 and ground with CONSULT or tester.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
• Fuse block (J/B) connector E160
• 10 A fuse (No.12)
• Harness for open or short between brake pedal position switch and fuse
>> Repair open circuit or short to ground in harness or connectors.
5.
CHECK BRAKE PEDAL POSITION SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 126 and brake pedal position switch terminal 2.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 6.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.
CHECK BRAKE PEDAL POSITION SWITCH
EC-922, "Component Inspection"
OK or NG
OK
>> GO TO 11.
NG
>> Replace brake pedal position switch. Refer to
7.
CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
MBIB1214E
Voltage: Battery voltage
Continuity should exist.
EC-918
< DTC/CIRCUIT DIAGNOSIS >
[VQ40DE FOR USA AND CANADA]
ASCD BRAKE SWITCH
2. Disconnect stop lamp switch (2) harness connector.
-
brake pedal position switch (1)
3. Check voltage between stop lamp switch terminal 1 and ground with CONSULT or tester.
OK or NG
OK
>> GO TO 9.
NG
>> GO TO 8.
8.
DETECT MALFUNCTIONING PART
Check the following.
• Fuse block (J/B) connector E160
• 10 A fuse (No.20)
• Harness for open or short between stop lamp switch and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
9.
CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 122 and stop lamp switch terminal 2.
Refer to Wiring Diagram.
3. 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.
10.
CHECK STOP LAMP SWITCH
EC-922, "Component Inspection"
OK or NG
OK
>> GO TO 11.
NG
>> Replace stop lamp switch. Refer to
.
11.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
>> INSPECTION END
M/T MODELS
1.
CHECK OVERALL FUNCTION-I
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.
MBIB1214E
Voltage: Battery voltage
Continuity should exist.
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