ignition NISSAN PATROL 1998 Y61 / 5.G Rear Suspension Workshop Manual

Trouble Diagnoses
DIAGNOSTIC PROCEDURE 1
(POWER SUPPLY AND GROUND CIRCUIT CHECK)
CHECK POWER SUPPLY CIRCUIT FOR
STABILIZER CONTROL UNIT.
1. Turn ignition switch ON.
2. Check voltage between control unit
connector terminals
V4,V5and
ground.
Battery voltage should exist.
OK
cNG
Check the following.
+7.5A fuse
24, 10A fuse
28
+Harness connectorM44
+Harness for open or
short between control
unit and fuse
If NG, repair fuse, harness
or connectors.
CHECK GROUND CIRCUIT FOR STABI-
LIZER CONTROL UNIT.
1. Disconnect control unit connector.
2. Check continuity between control unit
connector terminal
V10and ground.
Continuity should exist.
OK
cNG
Check the following.
+Harness connector
M44
+Harness for open or
short between control
unit and ground
If NG, repair harness or
connectors.
Power supply and ground circuit is OK.
SRA838A
SRA839A
.
.
STABILIZER RELEASE DEVICE
RA-20

DIAGNOSTIC PROCEDURE 3
(STABILIZER SWITCH CIRCUIT CHECK)
1. Turn ignition switch ON.
2. Turn stabilizer switch ``OFF'' to make
sure stabilizer OFF illuminate.
OK
cNG
Check the following.
+10A fuse
28
+Stabilizer off lamp bulb
OK
.
CHECK POWER SUPPLY FOR STABI-
LIZER SWITCH.
1. Turn ignition switch ON.
2. Check voltage between control unit
connector terminals
V1,V2,V3,V4
and ground.
NG
cOK
Stabilizer switch circuit is
OK.
STABILIZER SWITCH CHECK.
OK
cNG
Replace stabilizer switch.
Check the following.
+Harness connectors
M32,M44,M100
+Harness for open or short between con-
trol unit and stabilizer switch, combina-
tion meter
+Combination meter
If NG, repair harness or connectors.
Stabilizer
switchTerminal Volt
ON
V1- Ground Battery voltage
V2- Ground Battery voltage
V3- Ground 0
V4- Ground Battery voltage
OFF
V1- Ground 0
V2- Ground 0
V3- Ground Battery voltage
V4- Ground Battery voltage
Switch condi-
tionContinuity between terminals
V1-V3V2-V3
ON No Yes
OFF Yes No
SRA841A
SRA842A
.
.
.
STABILIZER RELEASE DEVICE
Trouble Diagnoses (Cont'd)
RA-22

DIAGNOSTIC PROCEDURE 4
(STABILIZER ACTUATOR CIRCUIT CHECK)
CHECK STABILIZER ACTUATOR CIR-
CUIT.
1. Turn ignition switch ON.
2. Check voltage between control unit
connector terminals
V6,V7,V8and
ground.
NG
cOK
Stabilizer actuator circuit is
OK.
CHECK STABILIZER ACTUATOR
CHECK.
1. Disconnect stabilizer actuator connec-
tor.
2. Check stabilizer actuator by listening for
its operating sound while applying bat-
tery voltage to the terminals
V1and
V2.
OK
cNG
Replace stabilizer actuator.
Check the following.
+Harness connectors
M44,C4
+Harness for open or short between con-
trol unit and stabilizer actuator
If NG, repair harness or connectors.
Stabilizer
switchTerminal Volt
ON
V6- Ground 0
V7- GroundAfter turning sta-
bilizer switch
``ON'', battery
voltage will exist
for about 15
seconds, then
drop to 0 volts.
V8- Ground Approximately 4
OFF
V6- GroundAfter turning sta-
bilizer switch
``OFF'', battery
voltage will exist
for about 15
seconds, then
drop to 0 volts.
V7- Ground 0
V8- Ground Approximately 4
Terminal Clutch cylinderOperating
sound
V1-V2@ÅOFF®ON Yes
V1-V2Å@ON®OFF Yes
SRA843A
SRA844A
.
.
STABILIZER RELEASE DEVICE
Trouble Diagnoses (Cont'd)
RA-23