Nissan Frontier D40. Instruction — part 265
4WD SHIFT INDICATOR LAMP KEEPS FLASHING
DLN-81
< SYMPTOM DIAGNOSIS >
[TRANSFER: TX15B]
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DLN
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4WD SHIFT INDICATOR LAMP KEEPS FLASHING
Description
INFOID:0000000005275470
The 4WD shift indicator lamp keeps flashing.
Diagnosis Procedure
INFOID:0000000005275471
1.
CONFIRM THE SYMPTOM
1.
Set 4WD shift switch to “2WD”.
2.
Drive the vehicle straight forward and backward keeping speed under 20 km/h (12 MPH).
Does 4WD shift indicator lamp keep flashing?
YES
>> GO TO 2.
NO
>> Inspection End.
2.
CHECK SYSTEM FOR WAIT DETECTION SWITCH
Perform trouble diagnosis for wait detection switch system. Refer to
Are the inspection results normal?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
3.
CHECK SYSTEM FOR 4LO SWITCH
Perform trouble diagnosis for 4LO switch. Refer to
.
Are the inspection results normal?
YES
>> GO TO 4.
NO
>> Repair or replace damaged parts.
4.
SYMPTOM CHECK
Check again.
Does the symptom still occur?
YES
>> GO TO 5.
NO
>> Inspection End.
5.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
Are the inspection results normal?
YES
>> GO TO 6.
NO
>> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
6.
CHECK TRANSFER INNER PARTS
1.
Disassemble transfer assembly. Refer to
DLN-105, "Disassembly and Assembly"
2.
Check transfer inner parts.
Are the inspection results normal?
YES
>> Inspection End.
NO
>> Repair or replace damaged parts.
DLN-82
< SYMPTOM DIAGNOSIS >
[TRANSFER: TX15B]
4WD WARNING LAMP FLASHES SLOWLY
4WD WARNING LAMP FLASHES SLOWLY
Description
INFOID:0000000005275472
The 4WD warning lamp flashes slowly while driving (1 time / 2 seconds). The lamp continues to flash until the
ignition switch is turned OFF.
Diagnosis Procedure
INFOID:0000000005275473
1.
CHECK TIRES
Check the following. Refer to
.
• Tire size
• Tire wear
• Tire pressure
Are the inspection results normal?
YES
>> GO TO 2.
NO
>> Repair or replace damaged parts.
2.
SYMPTOM CHECK
Check again.
Does the symptom still occur?
YES
>> GO TO 3.
NO
>> Inspection End.
3.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
Are the inspection results normal?
YES
>> Inspection End.
NO
>> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
ATP SWITCH
DLN-83
< SYMPTOM DIAGNOSIS >
[TRANSFER: TX15B]
C
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F
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A
B
DLN
N
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ATP SWITCH
Description
INFOID:0000000005275474
The ATP indicator does not come on when the transfer is in neutral and the A/T lever is in neutral or, the ATP
indicator stays on when the transfer case is not in neutral.
Diagnosis Procedure
INFOID:0000000005275475
Regarding Wiring Diagram information, refer to
.
1.
CHECK ATP SWITCH SIGNAL
With CONSULT-III
1.
Start engine.
2.
Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-III.
3.
Read out the value of “ATP SWITCH”.
Without CONSULT-III
1.
Start engine.
2.
Check voltage between transfer control unit harness connector
terminal and ground.
Are the inspection results normal?
YES
>> GO TO 5.
NO
>> GO TO 2.
2.
CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND ATP SWITCH
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer control unit harness connector and the ATP switch harness connector.
Condition
Display value
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
4WD shift switch: 4H to 4LO or 4LO to 4H
(While actuator motor is operating.)
ON
Except the above
OFF
Connector
Terminal
Condition
Voltage
(Approx.)
M152
23 -
Ground
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
4WD shift switch: 4H
to 4LO or 4LO to 4H
(While actuator motor
is operating.)
0V
Except the above
Battery
voltage
SDIA3375E
DLN-84
< SYMPTOM DIAGNOSIS >
[TRANSFER: TX15B]
ATP SWITCH
3.
Check continuity between transfer control unit harness connec-
tor M152 terminal 23 and ATP switch harness connector F55
terminal 8.
Also check harness for short to ground and short to power.
Does continuity exist?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect ATP switch harness connector.
3.
Check continuity between ATP switch harness connector F55
terminal 9 and ground.
Also check harness for short to power.
Does continuity exist?
YES >> GO TO 4.
NO
>> Repair open circuit or short to power in harness or con-
nectors.
4.
CHECK ATP SWITCH
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Remove ATP switch. Refer to
DLN-13, "Component Parts Location"
3.
Push and release ATP switch and check continuity between ATP
switch terminals 8 and 9.
Are the inspection results normal?
YES
>> GO TO 5.
NO
>> Replace ATP switch.
5.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
Are the inspection results normal?
YES
>> GO TO 6.
NO
>> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
6.
CHECK ATP WARNING LAMP
1.
Turn ignition switch “ON”. (Do not start engine.)
2.
A/T selector lever “N” position and engage the parking brake.
3.
Switch 4WD shift switch from 4H to 4LO or 4LO to 4H.
Does the ATP warning lamp turn ON while the actuator motor is operating?
YES
>> Inspection End.
NO
>> Refer to
.
Continuity should exist.
SDIA3376E
Continuity should exist.
SDIA2394E
Terminal
Condition
Continuity
8 - 9
Push ATP switch
Yes
Release ATP switch
No
SDIA2395E
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