Nissan Primera P12. Instruction — part 311
DTC P0102, P0103 MAF SENSOR
EC-429
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
DTC Confirmation Procedure
EBS0154G
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1.
Turn ignition switch ON.
2.
Select “DATA MONITOR” mode with CONSULT-II.
3.
Wait at least 5 seconds.
4.
If DTC is detected, go to
EC-431, "Diagnostic Procedure"
.
SEF817Y
EC-430
[YD (WITHOUT EURO-OBD)]
DTC P0102, P0103 MAF SENSOR
Wiring Diagram
EBS0154H
MBWA0645E
DTC P0102, P0103 MAF SENSOR
EC-431
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Diagnostic Procedure
EBS0154I
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Loosen and retighten engine ground screws. Refer to
.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace ground connections.
2.
CHECK MAFS POWER SUPPLY CIRCUIT
1.
Disconnect mass air flow sensor harness connector.
2.
Turn ignition switch ON.
3.
Check voltage between mass air flow sensor terminal 5 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 MAFS GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between mass air flow sensor terminal 4 and ECM terminal 73.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 4.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
MBIB0915E
MBIB0636E
Voltage: Battery voltage
MBIB0988E
Continuity should exist.
EC-432
[YD (WITHOUT EURO-OBD)]
DTC P0102, P0103 MAF SENSOR
4.
CHECK MAFS INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check harness continuity between mass air flow sensor terminal 3 and ECM terminal 54. Refer to Wiring
Diagram.
2.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 5.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK MASS AIR FLOW SENSOR
Refer to
EC-432, "Component Inspection"
.
OK or NG
OK
>> GO TO 6.
NG
>> Replace mass air flow sensor.
6.
CHECK INTERMITTENT INCIDENT
Refer to
EC-408, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
Component Inspection
EBS0154J
MASS AIR FLOW SENSOR
1.
Reconnect harness connectors disconnected.
2.
Start engine and warm it up to normal operating temperature.
3.
Check voltage between ECM terminal 54 (Mass air flow sensor
signal) and ground.
4.
If the voltage is out of specification, disconnect MAF sensor har-
ness connector and connect it again.
Then repeat above check.
Removal and Installation
EBS0154K
MASS AIR FLOW SENSOR
Refer to
EM-15, "AIR CLEANER AND AIR DUCT"
.
Continuity should exist.
Condition
Voltage V
Ignition switch ON (Engine stopped.)
Approx. 0.7
Idle (Engine is warmed up to normal
operating temperature.)
1.8 - 2.3
2,000 rpm (Engine is warmed up to nor-
mal operating temperature.)
2.5 - 3.0
SEF865T
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст