Nissan Titan. Instruction — part 126

DLN-76

< SYMPTOM DIAGNOSIS >

[TRANSFER: TX15B]

ATP WARNING LAMP DOES NOT TURN ON

NG

>> Check transfer control unit pin terminals for damage or loose connection with harness connector.

If any items are damaged, repair or replace damaged parts.

8.

CHECK TRANSFER INNER PARTS

1. Disassemble transfer assembly. Refer to

DLN-101, "Disassembly and Assembly"

.

2. Check transfer inner parts.
Are the inspection results normal?

YES

>> Inspection End.

NO

>> Repair or replace damaged parts.

4WD SHIFT INDICATOR LAMP KEEPS FLASHING

DLN-77

< SYMPTOM DIAGNOSIS >

[TRANSFER: TX15B]

C

E

F

G

H

I

J

K

L

M

A

B

DLN

N

O

P

4WD SHIFT INDICATOR LAMP KEEPS FLASHING

Description

INFOID:0000000009886018

The 4WD shift indicator lamp keeps flashing.

Diagnosis Procedure

INFOID:0000000009886019

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

DLN-36, "Diagnosis Procedure"

.

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

DLN-27, "Diagnosis Procedure"

.

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

DLN-56, "Reference Value"

.

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-101, "Disassembly and Assembly"

.

2. Check transfer inner parts.
Are the inspection results normal?

YES

>> Inspection End.

NO

>> Repair or replace damaged parts.

DLN-78

< SYMPTOM DIAGNOSIS >

[TRANSFER: TX15B]

4WD WARNING LAMP FLASHES SLOWLY

4WD WARNING LAMP FLASHES SLOWLY

Description

INFOID:0000000009886020

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:0000000009886021

1.

CHECK TIRES

Check the following. Refer to

WT-53, "Tire"

.

• 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

DLN-56, "Reference Value"

.

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-79

< SYMPTOM DIAGNOSIS >

[TRANSFER: TX15B]

C

E

F

G

H

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K

L

M

A

B

DLN

N

O

P

ATP SWITCH

Description

INFOID:0000000009886022

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:0000000009886023

Regarding Wiring Diagram information, refer to

DLN-62, "Wiring Diagram"

.

DIAGNOSTIC PROCEDURE

1.

CHECK ATP SWITCH SIGNAL

With CONSULT

1. Start engine.

2. Select DATA MONITOR mode for ALL MODE AWD/4WD with CONSULT.

3. Read out the value of ATP SWITCH.

Without CONSULT

1. Start engine.

2. Check voltage between transfer control unit harness connector

terminal and ground.

OK or NG

OK

>> GO TO 5.

NG

>> 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.)

E142

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