Nissan X-Trail 32. Manual — part 822
ASCD BRAKE SWITCH
EC-417
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
C
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ASCD BRAKE SWITCH
Component Function Check
INFOID:0000000010775312
1.
CHECK BRAKE PEDAL POSITION SWITCH FUNCTION
With CONSULT
1.
Turn ignition switch ON.
2.
Select “BRAKE SW” in “DATA MONITOR” mode with CONSULT.
3.
Check “BRAKE SW” indication as per the following conditions.
Without CONSULT
1.
Turn ignition switch ON.
2.
Check the voltage between ECM harness connector terminals as per the following.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to
.
Diagnosis Procedure
INFOID:0000000010775313
1.
CHECK BRAKE PEDAL POSITION SWITCH CIRCUIT
With CONSULT
1.
Turn ignition switch ON.
2.
Select “BRAKE SW 1” in “DATA MONITOR” mode of “ENGINE” with CONSULT.
3.
Check “BRAKE SW 1” indication as per the following conditions.
Without CONSULT
1.
Turn ignition switch ON.
2.
Check the voltage between ECM harness connector terminals as per the following.
Monitor item
Condition
Indication
BRAKE SW 1
Brake pedal
Slightly de-
pressed
OFF
Fully re-
leased
ON
ECM
Condition
Voltage
(Approx.)
Connector
+
–
Terminal
E16
116
128
Brake pedal
Slightly de-
pressed
0 V
Fully released
Battery voltage
Monitor item
Condition
Indication
BRAKE SW 1
Brake pedal
Slightly de-
pressed
OFF
Fully re-
leased
ON
ECM
Condition
Voltage
(Approx.)
Connector
+
–
Terminal
E16
116
128
Brake pedal
Slightly de-
pressed
0 V
Fully released
Battery voltage
EC-418
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
ASCD BRAKE SWITCH
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-44, "Intermittent Incident"
.
NO
>> GO TO 2.
2.
CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY CIRCUIT
1.
Turn ignition switch ON.
2.
Disconnect brake pedal position switch harness connector.
3.
Turn ignition switch ON.
4.
Check the voltage between brake pedal position switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Perform trouble diagnosis for power supply circuit.
3.
CHECK BRAKE PEDAL POSITION SWITCH INPUT SIGNAL CIRCUIT
1.
Disconnect ECM harness connector.
2.
Check the continuity between brake pedal position switch harness connector and ECM harness connec-
tor.
3.
Also check harness for short to ground and to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace malfunctioning part.
4.
CHECK BRAKE PEDAL POSITION SWITCH
Check brake pedal position switch. Refer to
EC-418, "Component Inspection (Brake Pedal Position Switch)"
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-44, "Intermittent Incident"
.
NO
>> Replace brake pedal position switch. Refer to
BR-21, "Removal and Installation"
.
Component Inspection (Brake Pedal Position Switch)
INFOID:0000000010775314
1.
CHECK BRAKE PEDAL POSITION SWITCH-1
1.
Turn ignition switch OFF.
2.
Disconnect brake pedal position harness connector.
3.
Check the continuity between brake pedal position switch terminals as per the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
+
−
Voltage
Brake pedal position switch
Connector
Terminal
CVT models
E124
1
Ground
Battery voltage
M/T models
E119
1
+
−
Continuity
Brake pedal position switch
ECM
Connector
Terminal
Connector
Terminal
CVT models
E124
2
E16
116
Existed
M/T models
E119
2
E16
116
Existed
Terminals
Condition
Continuity
1 and 2
Brake pedal
Fully released
Existed
Slightly depressed
Not existed
ASCD BRAKE SWITCH
EC-419
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
C
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EC
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2.
CHECK BRAKE PEDAL POSITION SWITCH-2
1.
Adjust brake pedal position switch installation. Refer to
BR-22, "Inspection and Adjustment"
.
2.
Check the continuity between brake pedal position switch terminals as per the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace brake pedal position switch. Refer to
BR-21, "Removal and Installation"
.
Brake pedal position switch
Condition
Continuity
+
−
Terminal
1
2
Brake pedal
Fully released
Existed
Slightly depressed
Not existed
EC-420
< SYMPTOM DIAGNOSIS >
[MR20DD]
ENGINE CONTROL SYSTEM
SYMPTOM DIAGNOSIS
ENGINE CONTROL SYSTEM
Symptom Table
INFOID:0000000010775318
SYSTEM — BASIC ENGINE CONTROL SYSTEM
SYMPTOM
Reference
page
HARD/NO ST
AR
T
/REST
AR
T
(EXCP
.
H
A
)
ENGINE ST
ALL
HESIT
A
TION/SURGING/FLA
T
SPOT
SP
ARK KNOCK/DET
O
NA
TION
LACK
OF POWER/
POOR
ACC
E
LERA
TION
HIGH IDL
E
/LOW
IDLE
ROUG
H IDLE/HUNTING
IDLI
NG VIBRA
T
ION
SLOW/NO RETURN T
O
IDLE
OVERHEA
T
S/W
A
TER TEMPERA
T
UR
E
HIGH
EXCESS
IVE F
U
E
L
CONSUMP
T
IO
N
EXCESS
IVE OIL CONSUMP
T
ION
BA
TTER
Y
DEAD (UNDER CHARGE)
Warranty symptom code
AA
AB
AC
AD
AE
AF
AG
AH
AJ
AK
AL
AM
HA
Fuel
Fuel pump circuit
1
1
2
3
2
2
2
3
2
Fuel pressure regulator sys-
tem
3
3
4
4
4
4
4
4
4
4
Fuel injector circuit
1
1
2
3
2
2
2
2
Evaporative emission sys-
tem
3
3
4
4
4
4
4
4
4
4
Fuel rail pressure sensor cir-
cuit
1
1
2
2
2
2
2
2
High pressure fuel pump cir-
cuit
4
3
Air
Positive crankcase ventila-
tion system
3
3
4
4
4
4
4
4
4
4
1
Incorrect idle speed adjust-
ment
1
1
1
1
1
Electric throttle control actu-
ator
1
1
2
3
3
2
2
2
2
2
2
Intake manifold runner con-
trol valve circuit
4
4
Igni-
tion
Incorrect ignition timing ad-
justment
3
3
1
1
1
1
1
1
Ignition circuit
1
1
2
2
2
2
2
2
Main power supply and ground cir-
cuit
2
2
3
3
3
3
3
2
3
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