Nissan Sentra. Instruction — part 438
EC-448
< DTC/CIRCUIT DIAGNOSIS >
[MRA8DE]
BRAKE PEDAL POSITION SWITCH
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace brake pedal position switch. Refer to
Brake pedal position switch
Condition
Continuity
+
−
Terminals
1
2
Brake pedal
Fully released
Existed
Slightly depressed
Not existed
ASCD INDICATOR
EC-449
< DTC/CIRCUIT DIAGNOSIS >
[MRA8DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
ASCD INDICATOR
Component Function Check
INFOID:0000000009758706
1.
CHECK ASCD INDICATOR FUNCTION
Check ASCD indicator under the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to
.
Diagnosis Procedure
INFOID:0000000009758707
1.
CHECK DTC
Check that DTC UXXXX is not displayed.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Perform trouble diagnosis for DTC UXXXX.
2.
CHECK DTC WITH COMBINATION METER
Check DTC with combination meter. Refer to
.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
3.
CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to
GI-39, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace combination meter. Refer to
MWI-77, "Removal and Installation"
NO
>> Repair or replace error-detected parts.
ASCD INDICATOR
CONDITION
SPECIFICATION
CRUISE LAMP
• Ignition switch: ON
• MAIN switch: Pressed at the 1st time
→
at the 2nd time
ON
→ OFF
SET LAMP
• MAIN switch: ON
• When vehicle speed is between 38 km/h
(24 MPH) and 160 km/h (100 MPH)
• ASCD: Operating
ON
• ASCD: Not operating
OFF
EC-450
< DTC/CIRCUIT DIAGNOSIS >
[MRA8DE]
FUEL INJECTOR
FUEL INJECTOR
Component Function Check
INFOID:0000000009758708
1.
INSPECTION START
Turn ignition switch to START.
Is any cylinder ignited?
YES
>> GO TO 2.
NO
>> Proceed to
.
2.
CHECK FUEL INJECTOR FUNCTION
With CONSULT
1. Start engine.
2. Perform “POWER BALANCE” in “ACTIVE TEST” mode of “ENGINE” using CONSULT.
3. Check that each circuit produces a momentary engine speed drop.
Without CONSULT
1. Let engine idle.
2. Listen to each fuel injector operating sound.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to
.
Diagnosis Procedure
INFOID:0000000009758709
1.
CHECK FUSE
1. Turn ignition switch OFF.
2. Pull out #52 fuse and check that the fuse is not fusing.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace the fuse after repairing the applicable circuit.
2.
CHECK FUEL INJECTOR POWER SUPPLY
1. Insert the fuse which pulled out.
2. Disconnect fuel injector harness connector.
3. Turn ignition switch ON.
4. Check the voltage between fuel injector harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
Clicking noise should be heard.
PBIB3332E
+
−
Voltage
Fuel injector
Cylinder
Connector
Terminal
1
F18
1
Ground
Battery voltage
2
F19
1
3
F20
1
4
F21
1
FUEL INJECTOR
EC-451
< DTC/CIRCUIT DIAGNOSIS >
[MRA8DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
3.
CHECK FUEL INJECTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between fuel injector harness connector and IPDM E/R harness connector.
4. Also check harness for short to ground.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-39, "Intermittent Incident"
.
NO
>> Repair or replace error-detected parts.
4.
CHECK FUEL INJECTOR CONTROL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between fuel injector harness connector and ECM harness connector.
4. Also check harness for short to ground and to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace error-detected parts.
5.
CHECK FUEL INJECTOR
Check the fuel injector. Refer to
EC-451, "Component Inspection (Fuel Injector)"
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-39, "Intermittent Incident"
NO
>> Replace malfunctioning fuel injector. Refer to
EM-40, "Removal and Installation"
Component Inspection (Fuel Injector)
INFOID:0000000009758710
1.
CHECK FUEL INJECTOR
1. Turn ignition switch OFF.
2. Disconnect fuel injector harness connector.
3. Check resistance between fuel injector terminals as per the following.
+
−
Continuity
Fuel injector
IPDM E/R
Cylinder
Connector
Terminal
Connector
Terminal
1
F18
1
E43
18
Existed
2
F19
1
3
F20
1
4
F21
1
+
−
Continuity
Fuel injector
ECM
Cylinder
Connector
Terminal
Connector
Terminal
1
F18
2
F24
13
Existed
2
F19
2
14
3
F20
2
10
4
F21
2
9
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст