NISSAN PICK-UP 1999 Owner's Manual

Diagnostic Procedure 1 (Wheel sensor or
rotor)
Malfunction code No. 21, 22, 25, 26, 31, 32, 35, 36 or 18
INSPECTION START
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1. Disconnect connectors from ABS
actuator and electric unit and wheel
sensor of malfunction code No. Check
terminals for damage or loose connec-
tions. Then reconnect connectors.
2. Carry out self-diagnosis again.
Does warning lamp activate again?
Yes
cNo
Inspection end
CHECK WHEEL SENSOR ELECTRI-
CAL.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1. Disconnect ABS actuator and electric
unit connector.
2. Check resistance between ABS actua-
tor and electric unit connector
E4
(body side) terminals.
Code No. 21 or 22 (Front RH wheel)
Terminals
V4andV5
Code No. 25 or 26 (Front LH wheel)
Terminals
V6andV7
Code No. 31 or 32 (4WD Rear RH
wheel)
Terminals
V8andV9
Code No. 35 or 36 (2WD Rear, 4WD
Rear LH wheel)
Terminals
V8andV9(2WD Rear
wheel)
Terminals
V1andV2(4WD Rear LH
wheel)
Resistance:
Front 1.44 - 1.76 kW
Rear (2WD) 1.22 - 1.48 kW
Rear (4WD) 1.44 - 1.76 kW
NG
cOKVA(Go to next page.)
CHECK WHEEL SENSOR.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check each sensor for resistance.
Resistance: Front 1.44 - 1.76 kW
Rear (2WD) 1.22 - 1.48 kW
Rear (4WD) 1.44 - 1.76 kW
NG
cOK
Check the following.
lHarness connectorsE4,E31,E15,BR5,C5
lHarness for open or
short between wheel
sensor connectors and
ABS actuator and elec-
tric unit
If NG, repair harness or
connectors.
REPLACE.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Replace wheel sensor.
SBR551E
SBR553E
SBR048EC
SBR552E
.
.
.
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
BR-2019

VA
Note
CHECK TIRE.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check for inflation pressure, wear and
size of each tire.
OK
cNGNote
Adjust tire pressure or
replace tire(s).
Note
CHECK WHEEL BEARING.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check wheel bearing axial end play.
OK
Note
CHECK SENSOR ROTOR.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check sensor rotor for teeth damage.
OK
cNGNote
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 harness
connector. Reconnect ABS actuator and
electric unit harness connector. Then
retest.
Note: Wheel position should be distinguished by code
numbers except code No. 18 (sensor rotor).
.
.
.
.
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
Diagnostic Procedure 1 (Wheel sensor or
rotor) (Cont'd)
BR-2020

Diagnostic Procedure 2 (ABS actuator
solenoid valve and solenoid valve relay)
Malfunction code No. 41, 45, 55, 42, 46, 56, 63
CHECK FUSIBLE LINK.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check 30A fusible link
e
. For fusible link
layout, refer to POWER SUPPLY ROUT-
ING in EL section.
OK
cNG
VA(Go to next page.)
CHECK FUSE.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check 10A fuse
18. For fuse layout, refer
to POWER SUPPLY ROUTING in EL
section.
OK
cNG
VB(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?
Yes
cNo
Inspection end
CHECK ABS ACTUATOR AND ELEC-
TRIC UNIT GROUND CIRCUIT.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Refer to ABS ACTUATOR AND ELEC-
TRIC UNIT GROUND in Ground Circuit
Check. Refer to original Service Manual.
OK
cNG
Repair harness and con-
nector.
CHECK SOLENOID VALVE RELAY
POWER SUPPLY CIRCUIT.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1. Disconnect ABS actuator and electric
unit connector.
2. Check voltage between ABS actuator
and electric unit connector
E4(body
side) terminal
V18and ground.
Battery voltage should exist.
OK
cNG
Check the following.
lHarness connectorE4
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.
SBR050EA
SBR052E
.
.
.
.
.
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
BR-2021

VA
REPLACE.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Replace fusible link.
Does the fusible link blow out when
ignition switch is turned ªONº?
Yes
cNo
Inspection end
CHECK SOLENOID VALVE RELAY
POWER SUPPLY CIRCUIT.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1. Disconnect ABS actuator and electric
unit connector.
2. Check continuity between ABS actuator
and electric unit connector
E4(body
side) terminal
V18and ground.
Continuity should not exit.
OK
cNG
Check the following.
lHarness connectorE4
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.
VB
REPLACE.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Replace fuse.
Does the fuse blow out when ignition
switch is turned ªONº?
No
cYes
Check the following.
lHarness connectorE4
lHarness for open or
short between ABS
actuator and electric unit
and fuse
If NG, repair harness or
connector.
END
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
INSPECTION END
SBR053E
.
.
.
.
.
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
Diagnostic Procedure 2 (ABS actuator
solenoid valve and solenoid valve relay)
(Cont'd)
BR-2022

Diagnostic Procedure 3 (Motor relay or
motor)
Malfunction code No. 61
CHECK FUSIBLE LINK.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check 30A fusible link
f . For fusible link
layout, refer to POWER SUPPLY ROUT-
ING in EL section.
OK
cNGVA(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?
Yes
cNo
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
E4(body
side) terminal
V17and ground.
Battery voltage should exist.
OK
cNG
Check the following.
lHarness connectorE4
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. Refer to original Service Manual.
OK
cNG
Repair harness and termi-
nals.
REPLACE.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Replace ABS actuator and electric unit.
SBR054EA
SBR055E
.
.
.
.
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
BR-2023

VA
REPLACE.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Replace fusible link.
Does the fusible link blow out when
ignition switch is turned ªONº?
Yes
cNo
Inspection end
CHECK ABS ACTUATOR MOTOR
POWER SUPPLY CIRCUIT.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1. Disconnect battery cable and ABS
actuator and electric unit connector
E4.
2. Check continuity between ABS actuator
and electric unit connector
E4(body
side) terminal
V17and ground.
Continuity should not exist.
OK
cNG
Check the following
lHarness connectorE4
lHarness for open or
short between ABS
actuator and electric unit
and fusible link
If NG, repair harness or
connector.
CHECK HARNESS CONNECTOR.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check ABS actuator and electric unit pin
terminals for damage or the connection of
ABS actuator and electric unit harness
connector.
Reconnect ABS actuator and electric unit
harness connector. Then retest.
SBR056EF
.
.
.
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
Diagnostic Procedure 3 (Motor relay or
motor) (Cont'd)
BR-2024

Diagnostic Procedure 4 (Low voltage)
Malfunction code No. 57
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?
Yes
cNo
Inspection end
CHECK ABS CONTROL UNIT POWER
SUPPLY CIRCUIT.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1. Disconnect ABS actuator and electric
unit connector.
2. Check voltage between ABS actuator
and electric unit connector
E4(body
side) terminal
V15and ground.
Battery voltage should exist when
ignition switch is turned ON.
OK
cNGVA(See below.)
CHECK ABS CONTROL UNIT GROUND.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Refer to ABS ACTUATOR AND ELEC-
TRIC UNIT GROUND in Ground Circuit
Check. Refer to original Service Manual.
OK
cNG
Repair harness and con-
nector.
CHECK HARNESS CONNECTOR.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check ABS actuator and electric unit pin
terminals for damage or the connection of
ABS actuator and electric unit harness
connector. Reconnect ABS actuator and
electric unit harness connector. Then
retest.
VA
CHECK FUSE.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check 10A fuse
18. For fuse layout, refer
to POWER SUPPLY ROUTING in EL
section.
OK
cNG
Replace fuse.
CHECK ABS CONTROL UNIT POWER
SUPPLY CIRCUIT.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check continuity between battery and
ABS actuator and electric unit connector
E4(body side) terminalV15.
OK
cNG
Check the following.
lHarness connectorE4lHarness for open or
short between ABS
actuator and electric unit
and fuse
If NG, repair harness or
connector.
CHECK BATTERY.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check battery. Refer to BATTERY in EL
section.
SBR057EA
SBR058EF
.
.
.
.
.
.
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
BR-2025

Diagnostic Procedure 5 (G sensor)
Malfunction code No. 17
CHECK G SENSOR POWER SUPPLY
CIRCUIT.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check 10A fuse
18. For fuse layout, refer
to POWER SUPPLY ROUTING in EL sec-
tion.
OK
cNG
Replace fuse.
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?
Yes
cNo
Inspection end
CHECK G SENSOR.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Refer to G SENSOR in Electrical Compo-
nents Inspection, BR-2027.
OK
cNG
Replace G sensor.
CHECK G SENSOR POWER SUPPLY
CIRCUIT.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1. Disconnect G sensor connector.
2. Check voltage between G sensor con-
nector
M101,M102(body side) terminal
V2,V15and ground.
Battery voltage should exist.
OK
cNG
Check the following.
lHarness connectors
M101,M102,E4
lHarness for open or short
between G sensor and
ABS actuator and electric
unit
If NG, repair harness or
connectors.
CHECK G SENSOR GROUND.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1. Disconnect ABS actuator and electric
unit connector and G sensor connec-
tors.
2. Check continuity between ABS actuator
and electric unit connector
E4(body
side) terminals
V10,V20and G sensor
connectors
M101,M102(body side) ter-
minals
V10,V20.
Continuity should exist.
OK
cNG
Check the following.
lHarness connectors
M101,M102,E4
lHarness for open or short
between G sensor and
ABS actuator and electric
unit
If NG, repair harness or
connectors.
CHECK HARNESS CONNECTOR.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check ABS actuator and electric unit pin
terminals for damage or the connection of
ABS actuator and electric unit harness
connector. Reconnect ABS actuator and
electric unit harness connector. Then
retest.
SBR059EA
SBR060E
SBR061E
.
.
.
.
.
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
BR-2026

ELECTRICAL COMPONENTS INSPECTION
G sensor
CAUTION:
The G sensor is easily damaged if it sustains an impact. Be
careful not to drop or bump it.
1. Measure resistance between terminals
V10andV15of G sen-
sor unit connector.
G sensor conditionResistance between
terminalsV10andV15
G sensor switch
condition
Installed in vehicle 1.4 - 1.6 kWªONº
Tilted as shown in figure 4.7 - 5.5 kWªOFFº
2. Measure resistance between terminalsV2andV20of the G
sensor unit connector.
Resistance: 70 - 124W
Diagnostic Procedure 6 (Control unit)
Malfunction code No. 71
CHECK CONNECTOR.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1. Disconnect ABS actuator and electric
unit connector.
Check terminals for damage or loose
connections. Then reconnect connec-
tor.
2. Carry out self-diagnosis again.
Does warning lamp activate again?
Yes
cNo
Inspection end
ABS CONTROL UNIT POWER SUPPLY
CHECK
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check voltage. Refer to
in Diagnostic
Procedure 4, BR-2025.
CHECK SELF-DIAGNOSTIC RESULTS
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Does warning lamp indicate code No. 71
again?
No
cYes
Replace ABS actuator and
electric unit.
INSPECTION
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Inspect the system according to the code
No.
SBR844DA
SBR062EA
.
.
.
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC ITEMS
Diagnostic Procedure 5 (G sensor) (Cont'd)
BR-2027

Diagnostic Procedure 12 (Warning lamp does
not come on when ignition switch is turned
ON.)
CHECK FUSE.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check 10A fuse
20. For fuse layout, refer
to POWER SUPPLY ROUTING in EL
section.
OK
cNG
Replace fuse.
CHECK WARNING LAMP ACTIVATE.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Disconnect ABS actuator and electric unit
connector.
Does the warning lamp activate?
No
cYesVA(Go to next page.)
CHECK HARNESS FOR SHORT.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1. Disconnect ABS actuator and electric
unit connector.
2. Check voltage between ABS actuator
and electric unit connector
E4(body
side) terminal
V10(2WD) orV21(4WD)
and ground.
Battery voltage should not exist.
OK
cNG
Repair harness or connec-
tor.
CHECK COMBINATION METER.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check combination meter. Refer to
WARNING LAMPS in EL section.
SBR063EA
SBR069E
SBR144E
.
.
.
TROUBLE DIAGNOSES FOR SYMPTOMS
BR-2028