
Wiring Diagram Ð ABS Ð
MODELS WITH SELF-DIAGNOSIS FUNCTION
YBR208 BATTERYIGNITION SWITCH
ON or START
FUSE
BLOCK
(J/B)Refer to EL-POWER.
: LHD models
: RHD models: CVT models
: M/T models
RELEASEDDEPRESSEDSTOP LAMP
SWITCH
FUSE
BLOCK
(J/B)COMBINATION METER
(ABS WARNING LAMP)
ABS ACTUATOR
AND ELECTRIC
UNIT
(CONTROL UNIT)
TCM
(TRANSMISSION CON-
TROL MODULE)DATA LINK CON-
NECTOR
Refer to las page (Foldout page).
TROUBLE DIAGNOSES
BR-62 

CONSULT-II
CONSULT-II APPLICATION TO ABS
ITEMSELF-DIAGNOSTIC
RESULTSDATA MONITOR ACTIVE TEST
Front right wheel sensor X X Ð
Front left wheel sensor X X Ð
Rear right wheel sensor X X Ð
Rear left wheel sensor X X Ð
Stop lamp switch Ð X Ð
Front right inlet solenoid valve X X X
Front right outlet solenoid valve X X X
Front left inlet solenoid valve X X X
Front left outlet solenoid valve X X X
Rear right inlet solenoid valve X X X
Rear left inlet solenoid valve X X X
Rear right outlet solenoid valve X X X
Rear left outlet solenoid valve X X X
Actuator solenoid valve relay X X Ð
Actuator motor relay
(ABS MOTOR is shown on the Data Monitor screen.)XXX
ABS warning lamp Ð X Ð
Battery voltage X X Ð
Control unit X Ð Ð
X: Applicable
Ð: Not applicable
ECU part number mode
Ignore the ECU part number displayed in the ECU PART NUMBER MODE. Refer to parts catalog to order
the ECU.
Trouble Diagnosis Ð General Description
BR-69 
![NISSAN PRIMERA 1999  Electronic Repair Manual SELF-DIAGNOSTIC RESULTS MODE
Diagnostic item Diagnostic item is detected when...Diagnostic
procedure
FR RH SENSORH
[OPEN]
lCircuit for front right wheel sensor is open.
(An abnormally high input volta NISSAN PRIMERA 1999  Electronic Repair Manual SELF-DIAGNOSTIC RESULTS MODE
Diagnostic item Diagnostic item is detected when...Diagnostic
procedure
FR RH SENSORH
[OPEN]
lCircuit for front right wheel sensor is open.
(An abnormally high input volta](/manual-img/5/57377/w960_57377-192.png)
SELF-DIAGNOSTIC RESULTS MODE
Diagnostic item Diagnostic item is detected when...Diagnostic
procedure
FR RH SENSORH
[OPEN]
lCircuit for front right wheel sensor is open.
(An abnormally high input voltage is entered.)1
FR LH SENSORH
[OPEN]
lCircuit for front left wheel sensor is open.
(An abnormally high input voltage is entered.)1
RR RH SENSORH
[OPEN]
lCircuit for rear right sensor is open.
(An abnormally high input voltage is entered.)1
RR LH SENSORH
[OPEN]
lCircuit for rear left sensor is open.
(An abnormally high input voltage is entered.)1
FR RH SENSORH
[SHORT]
lCircuit for front right wheel sensor is shorted.
(An abnormally low input voltage is entered.)1
FR LH SENSORH
[SHORT]
lCircuit for front left wheel sensor is shorted.
(An abnormally low input voltage is entered.)1
RR RH SENSORH
[SHORT]
lCircuit for rear right sensor is shorted.
(An abnormally low input voltage is entered.)1
RR LH SENSOR
[SHORT]
lCircuit for rear left sensor is shorted.
(An abnormally low input voltage is entered.)1
ABS SENSORH
[ABNORMAL SIGNAL]
lTeeth damage on sensor rotor or improper installation of wheel sensor.
(Abnormal wheel sensor signal is entered.)1
FR RH IN ABS SOL
[OPEN]
lCircuit for front right inlet solenoid valve is open.
(An abnormally low output voltage is entered.)2
FR LH IN ABS SOL
[OPEN]
lCircuit for front left inlet solenoid valve is open.
(An abnormally low output voltage is entered.)2
RR RH IN ABS SOL
[OPEN]
lCircuit for rear right inlet solenoid valve is open.
(An abnormally low output voltage is entered.)2
RR LH IN ABS SOL
[OPEN]
lCircuit for rear left inlet solenoid valve is open.
(An abnormally low output voltage is entered.)2
FR RH IN ABS SOL
[SHORT]
lCircuit for front right inlet solenoid valve is shorted.
(An abnormally high output voltage is entered.)2
FR LH IN ABS SOL
[SHORT]
lCircuit for front left inlet solenoid valve is shorted.
(An abnormally high output voltage is entered.)2
RR RH IN ABS SOL
[SHORT]
lCircuit for rear right inlet solenoid valve is shorted.
(An abnormally high output voltage is entered.)2
RR LH IN ABS SOL
[SHORT]
lCircuit for rear left inlet solenoid valve is shorted.
(An abnormally high output voltage is entered.)2
FR RH OUT ABS SOL
[OPEN]
lCircuit for front right outlet solenoid valve is open.
(An abnormally low output voltage is entered.)2
FR LH OUT ABS SOL
[OPEN]
lCircuit for front left outlet solenoid valve is open.
(An abnormally low output voltage is entered.)2
RR RH OUT ABS SOL
[OPEN]
lCircuit for rear right outlet solenoid valve is open.
(An abnormally low output voltage is entered.)2
RR LH OUT ABS SOL
[OPEN]
lCircuit for rear left outlet solenoid valve is open.
(An abnormally low output voltage is entered.)2
FR RH OUT ABS SOL
[SHORT]
lCircuit for front right outlet solenoid valve is shorted.
(An abnormally high output voltage is entered.)2
FR LH OUT ABS SOL
[SHORT]
lCircuit for front left outlet solenoid valve is shorted.
(An abnormally high output voltage is entered.)2
RR RH OUT ABS SOL
[SHORT]
lCircuit for rear right outlet solenoid valve is shorted.
(An abnormally high output voltage is entered.)2
RR LH OUT ABS SOL
[SHORT]
lCircuit for rear left outlet solenoid valve is shorted.
(An abnormally high output voltage is entered.)2
ABS ACTUATOR RELAY
[ABNORMAL]
lActuator solenoid valve relay is ON, even control unit sends off signal.lActuator solenoid valve relay is OFF, even control unit sends on signal.2
ABS MOTOR RELAY
[ABNORMAL]
lCircuit for actuator motor is open or shorted.lActuator motor relay is stuck.lCircuit for actuator is open or shorted.3
BATTERY VOLT
[VB-LOW]
lPower source voltage supplied to ABS control unit is abnormally low. 4
CONTROL UNIT
lFunction of calculation in ABS control unit has failed. 5
H: If one or more wheels spin on a rough or slippery road for 40 seconds or more, the ABS warning lamp will illuminate. This does
not indicate a malfunction. Only in the case of the short-circuit after repair the ABS warning lamp also illuminates when the igni-
tion switch is turned ªONº. In this case, drive the vehicle at speeds greater than 30 km/h (19 MPH) for approximately 1 minute
as specified in ªSELF-DIAGNOSIS PROCEDUREº, BR-70. Check to ensure that the ABS warning lamp goes out while the
vehicle is being driven.
Trouble Diagnosis Ð General Description
CONSULT-II Inspection Procedure (Cont'd)
BR-71 

DATA MONITOR MODE
MONITOR ITEM CONDITION SPECIFICATION
FR RH SENSOR
FR LH SENSOR
REAR RH SENSOR
REAR LH SENSORDrive vehicle.
(Each wheel is rotating.)Wheel speed signal
Almost the same speed as speedometer.
STOP LAMP SW Brake is depressed.Depress the pedal: ON
Release the pedal: OFF
FR RH IN SOL
FR RH OUT SOL
FR LH IN SOL
FR LH OUT SOL
RR RH IN SOL
RR RH OUT SOL
RR LH IN SOL
RR LH OUT SOL1. Drive vehicle at speeds
over 30 km/h (19 mph) for
at least one minute.
2. Engine is running.Operating conditions for each solenoid valve are indicated.
ABS is not operating: OFF
MOTOR RELAYABS is not operating: OFF
ABS is operating: ON
ACTUATOR RELAY
Ignition switch is set to the
ªONº position or engine is
running.Ignition switch in the ªONº position (Engine stops): OFF
Engine running: ON
WARNING LAMPWarning lamp is turned on: ON
Warning lamp is turned off: OFF
BATTERY VOLTPower supply voltage for control unit
Trouble Diagnosis Ð General Description
CONSULT-II Inspection Procedure (Cont'd)
BR-73 

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
ENGpA(Go to next page.)
CHECK FUSE.
Check 10A fuse
19. For fuse layout,
refer to POWER SUPPLY ROUTING in
EL section.
OK
ENGpB(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?
Ye s
ENo
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
ENG
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) terminalp29and ground.
Battery voltage should exist.
OK
ENG
Check the following.
lHarness connector
E78
lHarness 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 

pA
REPLACE.
Replace fusible link.
Does the fusible link blow out when
ignition switch is turned ON?
Ye s
ENo
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) terminalp29and
ground.
Continuity should not exist.
OK
ENG
Check the following
lHarness connector
E78
lHarness 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.
pB
REPLACE.
Replace fuse.
Does the fuse blow out when ignition
switch is turned ON?
No
EYe s
Check the following.
lHarness connector
E78
lHarness 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 CONNECTORH
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 

Diagnostic Procedure 3 (Motor Relay or
motor)
(Malfunction code No. 61 for models with
self-diagnosis function)
CHECK FUSIBLE LINK.
Check 40A fusible link
i(Petrol
engine), fusible link
f(diesel engine).
For fusible link layout, refer to POWER
SUPPLY ROUTING in EL section.
OK
ENG
pA(Go to next page.)
CHECK CONNECTOR
1. Disconnect ABS actuator and electric
unit connector. Check terminals for
damage or loose connection. Then
reconnect connector.
2. Carry out self-diagnosis again.
Does warning lamp activate again?
Ye s
ENo
Inspection end
CHECK MOTOR RELAY POWER SUP-
PLY CIRCUIT.
1. Disconnect ABS actuator and electric
unit connector.
2. Check voltage between ABS actuator
and electric unit connector
E78(body
side) terminal
p30and ground.
Battery voltage should exist.
OK
ENG
Check the following.
lHarness connector
E78
lHarness for open or
short between ABS
actuator and electric
unit and fusible link.
If NG, repair harness or
connector.
CHECK ABS ACTUATOR AND ELEC-
TRIC UNIT GROUND.
Refer to ABS ACTUATOR AND ELEC-
TRIC UNIT GROUND in Ground Circuit
Check, BR-75.
OK
ENG
Repair harness and termi-
nals.
REPLACE.
Replace ABS actuator and electric unit.
YBR177 Fusible link Fuse
ABS actuator
and electric
unit
Motor
relayTo
solenoid
valve
relay
ABS control unit
ABS
actuator and
electric unit
connector
: With petrol engine
: With diesel engine
YBR178
ABS ACTUATOR AND
ELECTRIC UNIT CONNECTOR
H
H
H
H
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
BR-81 

pA
REPLACE.
Replace fusible link.
Does the fusible link blow out when
ignition switch is turned ON?
OK
ENo
Inspection end
CHECK ABS ACTUATOR MOTOR
POWER SUPPLY CIRCUIT.
1. Disconnect battery cable and ABS
actuator and electric unit connector
E78.
2. Check continuity between ABS
actuator and electric unit connector
E78(body side) terminalp30and
ground.
Continuity should not exist.
OK
ENG
Check the following
lHarness connector
E78
lHarness for open or
short between ABS
actuator and electric
unit and fusible link
If NG, repair harness ro
connector.
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.
YBR179
ABS ACTUATOR AND
ELECTRIC UNIT AND CONNECTORH
H
H
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
Diagnostic Procedure 3 (Motor Relay or
motor) (Cont'd)
BR-82