Nissan Frontier D22. Instruction — part 939
WT-20
TROUBLE DIAGNOSIS FOR SYMPTOMS
3.
CHECK POWER SUPPLY CIRCUIT 2
1.
Turn ignition switch ON.
2.
Check voltage between low tire pressure warning control unit connector M143 terminal 2 (G/W), 4 (G/W)
and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Check low tire pressure warning control unit power sup-
ply circuit for open or short.
4.
CHECK GROUND CIRCUIT
●
Check continuity between low tire pressure warning control unit connector M143 terminal 11(B) and
ground.
OK or NG
OK
>> Replace low tire pressure warning control unit.
NG
>> Repair or replace low tire pressure warning control unit
ground circuit.
Inspection 3: Warning Lamp Blinks When Ignition Switch Is Turned On
EES000Y8
DIAGNOSTIC PROCEDURE
1.
CHECK CIRCUIT
1.
Disconnect low tire pressure warning control unit connector M143.
2.
Check continuity between low tire pressure warning control unit connector M143 terminal 8(OR/L) and
ground.
OK or NG
OK
>> Replace low tire pressure warning control unit.
NG
>> Repair circuit or harness connector.
Terminals
Voltage
(Approx.)
(+)
(–)
Connector
Terminal
(Wire color)
Ground
12V
M143
2 (G/W)
M143
4 (G/W)
WEIA0014E
Terminals
Continuity
(+)
(–)
Connector
Terminal
(Wire color)
Ground
Yes
M143
11 (B)
WEIA0015E
Terminals
Continuity
(+)
(–)
Connector
Terminal
(Wire color)
Ground
Yes
M143
8 (OR/L)
WEIA0016E
TROUBLE DIAGNOSIS FOR SYMPTOMS
WT-21
C
D
F
G
H
I
J
K
L
M
A
B
WT
Inspection 4: Hazard Warning Lamp Blinks When Ignition Switch Is Turned On
EES000Y9
DIAGNOSTIC PROCEDURE
1.
CHECK GROUND CIRCUIT
●
Disconnect low tire pressure warning control unit connector M143.
●
Check continuity between low tire pressure warning control unit connector M143 terminal 11 (B) and
ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace low tire pressure warning control unit
ground circuit.
2.
CHECK RELAY
●
Check low tire pressure warning relay. Refer to
WT-22, "Electrical Components Inspection"
.
OK or NG
OK
>> Replace low tire pressure warning control unit.
NG
>> Replace low tire pressure warning relay.
Inspection 5: ID Registration Cannot Be Completed
EES000YA
DIAGNOSTIC PROCEDURE
1.
ID REGISTRATION (ALL)
●
Carry out ID registration of all transmitters.
●
Can ID registration of all transmitters be completed?
Yes or No?
Yes
>> INSPECTION END
No
>> GO TO
WT-17, "Inspection 1: Transmitter or Low Tire Pressure Warning Control Unit"
Terminals
Continuity
(+)
(–)
Connector
Terminal
(Wire color)
Ground
Yes
M143
11 (B)
WEIA0015E
WT-22
TROUBLE DIAGNOSIS FOR SYMPTOMS
Electrical Components Inspection
EES000YB
LOW TIRE PRESSURE WARNING RELAY
Condition
Continuity
12V direct current supply between termi-
nals 1 and 2
Yes
No current supply
No
SEC202B
REMOVAL AND INSTALLATION
WT-23
C
D
F
G
H
I
J
K
L
M
A
B
WT
REMOVAL AND INSTALLATION
PFP:00000
Transmitter (Pressure Sensor)
EES000YC
REMOVAL
1.
Deflate tire. Unscrew transmitter retaining nut and allow transmitter to fall into tire.
2.
Gently bounce tire so that transmitter falls to bottom of tire.
Place wheel and tire assembly on tire changing machine and
break both tire beads. Ensure that the transmitter remains at the
bottom of the tire while breaking the bead.
3.
Turn tire so that valve hole is at bottom, and gently bounce the
tire to ensure transmitter is near valve hole. Carefully lift tire onto
turntable and position valve hole (and transmitter) 270 degrees
from mounting/dismounting head.
4.
Lubricate tire well, and remove top side of tire. Reach inside the
tire and remove the transmitter.
INSTALLATION
1.
Place first side of tire onto rim.
2.
Mount transmitter on rim and tighten nut.
SEIA0047E
SEIA0048E
SEIA0049E
Transmitter nut
tightening torque
: 4.1 - 6.8 N·m (0.42 - 0.69 kg-m,
36 - 60 in-lb)
LEIA0028E
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