Nissan Primera P11. Manual — part 50
Diagnostic Procedure 1 (Wheel sensor or
rotor)
(Malfunction code No. 21, 22, 25, 26, 31, 32, 35, 36 or
18 for models with self-diagnosis function)
INSPECTION STARTS
1. Disconnect connectors from ABS
actuator and electric unit and wheel
sensor of malfunction code No.
Check terminals for damage or loose
connections. Then reconnect con-
nectors.
2. Carry out self-diagnosis again.
Does warning lamp activate
again?
Yes
E
No
Inspection end
CHECK WHEEL SENSOR ELECTRI-
CAL.
1. Disconnect ABS actuator and electric
unit connector.
2. Check resistance between ABS
actuator and electric unit connector
E78
(body side) terminals.
Code No. 21 or 22 (Front RH wheel)
Terminals
p
11
and
p
12
Code No. 25 or 26 (Front LH wheel)
Terminals
p
9
and
p
10
Code No. 31 or 32 (Rear RH wheel)
Terminals
p
13
and
p
15
Code No. 35 or 36 (Rear LH wheel)
Terminals
p
7
and
p
8
Resistance: Front 1.44 - 1.76 k
Ω
Rear 1.44 - 1.76 k
Ω
NG
E
OK
p
A
(Go to next page.)
CHECK WHEEL SENSOR.
Check each sensor for resistance.
Resistance: Front 1.44 - 1.76 k
Ω
Rear 1.44 - 1.76 k
Ω
NG
E
OK
Check the following.
●
Harness connectors
E78
●
Harness for open or
short between wheel
sensor connectors and
ABS actuator and
electric unit
If NG, repair harness or
connectors.
REPLACE.
Replace wheel sensor.
NBR420
Front RH
Front LH
Rear RH
Rear LH
ABS actuator and electric unit
Wheel sensor connectors (sensor side)
Front LH
Front RH
Rear LH
Rear RH
NBR414
ABS ACTUATOR AND
ELECTRIC UNIT CONNECTOR
YBR173
Front
sensor
Rear
sensor
H
H
H
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
BR-77
p
A
Note
Note
CHECK TYRE.
Check for inflation pressure, wear and
size of each tyre.
OK
E
NG
Adjust tyre pressure or
replace tyre(s).
Note
CHECK WHEEL BEARING
Check wheel bearing axial end play and
clearance between sensor and rotor.
Clearance
Front
0.1 - 1.1 mm (0.004 - 0.043 in)
Rear
0.536 - 1.551 mm (0.021 - 0.061 in)
OK
E
NG
Clean sensor fixing
portion, or replace sensor.
Note
Note
CHECK SENSOR ROTOR.
Check sensor rotor for teeth damage.
OK
E
NG
Replace sensor rotor.
CHECK HARNESS CONNECTOR.
Check ABS actuator and electric unit pin
terminals for damage or the connection
of ABS actuator and electric unit har-
ness connector.
Reconnect ABS actuator and electric
unit harness connector. Then retest.
Note: Wheel position should be indentified by code num-
bers except code No. 18 (sensor rotor).
NBR391
Front sensor
Feeler gauge
Sensor
Rotor
Sensor
Feeler gauge
H
H
H
H
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
Diagnostic Procedure 1 (Wheel sensor or
rotor) (Cont’d)
BR-78
Diagnostic Procedure 2 (ABS actuator
solenoid valve and solenoid valve relay)
(Malfunction code Nos. 41, 42, 45, 46, 51, 52, 55, 56,
63 for models with self-diagnosis function)
CHECK FUSIBLE LINK.
Check 40A fusible link
g
(petrol
engine), fusible link
h
(diesel engine).
For fusible link layout, refer to POWER
SUPPLY ROUTING in EL section.
OK
E
NG
p
A
(Go to next page.)
CHECK FUSE.
Check 10A fuse
19
. For fuse layout,
refer to POWER SUPPLY ROUTING in
EL section.
OK
E
NG
p
B
(Go to next page.)
CHECK CONNECTOR.
1. Disconnect ABS actuator and elec-
tric unit connector. Check terminals
for damage or loose connection.
Then reconnect connector.
2. Carry out self-diagnosis again.
Does warning lamp activate
again?
Yes
E
No
Inspection end
CHECK ABS ACTUATOR AND ELEC-
TRIC UNIT GROUND CIRCUIT.
Refer to ABS ACTUATOR AND ELEC-
TRIC UNIT GROUND in Ground Circuit
Check, BR-75.
OK
E
NG
Repair harness and con-
nector.
CHECK SOLENOID VALVE RELAY
POWER SUPPLY CIRCUIT.
1. Disconnect ABS actuator and elec-
tric unit connector.
2. Check voltage between ABS actua-
tor and electric unit connector
E78
(body side) terminal
p
29
and ground.
Battery voltage should exist.
OK
E
NG
Check the following.
●
Harness connector
E78
●
Harness for open or
short between ABS
actuator and electric
unit and fusible link
If NG, repair harness or
connector.
REPLACE.
Replace ABS actuator and electric unit.
YBR174
Fusible link
Fuse
ABS actuator
and electric unit
To motor relay
Solenoid
valve
relay
ABS control unit
ABS
actuator and
electric unit
connector
: With petrol engine
: With diesel engine
YBR175
ABS ACTUATOR AND
ELECTRIC UNIT CONNECTOR
H
H
H
H
H
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
BR-79
p
A
REPLACE.
Replace fusible link.
Does the fusible link blow out when
ignition switch is turned ON?
Yes
E
No
Inspection end
CHECK SOLENOID VALVE RELAY
POWER SUPPLY CIRCUIT.
1. Disconnect battery cable and ABS
actuator and electric unit connector.
2. Check continuity between ABS
actuator and electric unit connector
E78
(body side) terminal
p
29
and
ground.
Continuity should not exist.
OK
E
NG
Check the following
●
Harness connector
E78
●
Harness for open or
short between ABS
actuator and electric
unit and fusible link
If NG, repair harness or
connector.
REPLACE.
Replace ABS actuator and electric unit.
p
B
REPLACE.
Replace fuse.
Does the fuse blow out when ignition
switch is turned ON?
No
E
Yes
Check the following.
●
Harness connector
E78
●
Harness for open or
short between ABS
actuator and electric
unit and fuse
If NG, repair harness or
connector.
END
Inspection end
YBR176
ABS ACTUATOR AND
ELECTRIC UNIT CONNECTOR
H
H
H
H
H
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
Diagnostic Procedure 2 (ABS actuator
solenoid valve and solenoid valve relay)
(Cont’d)
BR-80
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