Nissan Titan. Manual

TM-3

On Board Diagnosis Logic ......................................

Possible Cause .......................................................

DTC Confirmation Procedure ..................................

Diagnosis Procedure ...............................................

P1730 INTERLOCK ............................................

Description ..............................................................

On Board Diagnosis Logic ......................................

Possible Cause .......................................................

DTC Confirmation Procedure ..................................

Judgment of Interlock ..............................................

Diagnosis Procedure ...............................................

P1731 1ST ENGINE BRAKING .........................

Description ..............................................................

CONSULT Reference Value in Data Monitor
Mode .......................................................................

On Board Diagnosis Logic ......................................

Possible Cause .......................................................

DTC Confirmation Procedure ..................................

Diagnosis Procedure ...............................................

P1752 INPUT CLUTCH SOLENOID ..................

Description ..............................................................

CONSULT Reference Value in Data Monitor
Mode .......................................................................

On Board Diagnosis Logic ......................................

Possible Cause .......................................................

DTC Confirmation Procedure ..................................

Diagnosis Procedure ...............................................

P1757 FRONT BRAKE SOLENOID ...................

Description ..............................................................

CONSULT Reference Value in Data Monitor
Mode .......................................................................

On Board Diagnosis Logic ......................................

Possible Cause .......................................................

DTC Confirmation Procedure ..................................

Diagnosis Procedure ...............................................

P1762 DIRECT CLUTCH SOLENOID ................

Description ..............................................................

CONSULT Reference Value in Data Monitor
Mode .......................................................................

On Board Diagnosis Logic ......................................

Possible Cause .......................................................

DTC Confirmation Procedure ..................................

Diagnosis Procedure ...............................................

P1767 HIGH AND LOW REVERSE CLUTCH
SOLENOID .........................................................

Description ..............................................................

CONSULT Reference Value in Data Monitor
Mode .......................................................................

On Board Diagnosis Logic ......................................

Possible Cause .......................................................

DTC Confirmation Procedure ..................................

Diagnosis Procedure ...............................................

P1772 LOW COAST BRAKE SOLENOID .........

Description ...............................................................

CONSULT Reference Value in Data Monitor
Mode ........................................................................

On Board Diagnosis Logic .......................................

Possible Cause ........................................................

DTC Confirmation Procedure ..................................

Diagnosis Procedure ...............................................

P1774 LOW COAST BRAKE SOLENOID ......

100

Description .............................................................

100

CONSULT Reference Value in Data Monitor
Mode ......................................................................

100

On Board Diagnosis Logic .....................................

100

Possible Cause ......................................................

100

DTC Confirmation Procedure ................................

100

Diagnosis Procedure .............................................

101

P1815 M-MODE SWITCH ...............................

102

Description .............................................................

102

CONSULT Reference Value in Data Monitor
Mode ......................................................................

102

On Board Diagnosis Logic .....................................

102

Possible Cause ......................................................

102

DTC Confirmation Procedure ................................

102

Diagnosis Procedure .............................................

102

Component Inspection ...........................................

103

Position Indicator Lamp .........................................

103

MAIN POWER SUPPLY AND GROUND CIR-
CUIT ................................................................

105

Diagnosis Procedure .............................................

105

Component Inspection ...........................................

108

CLOSED THROTTLE POSITION AND WIDE
OPEN THROTTLE POSITION CIRCUIT .........

109

CONSULT Reference Value in Data Monitor
Mode ......................................................................

109

Diagnosis Procedure .............................................

109

BRAKE SIGNAL CIRCUIT ..............................

110

CONSULT Reference Value in Data Monitor
Mode ......................................................................

110

Diagnosis Procedure .............................................

110

TOW MODE SWITCH .....................................

111

Description .............................................................

111

Diagnosis Procedure .............................................

111

A/T SHIFT LOCK SYSTEM .............................

112

Description .............................................................

112

Terminals And Reference Values ..........................

112

Component Inspections (Floor Shift Models) ........

112

Component Inspections (Column Shift Models) ....

114

1ST POSITION SWITCH .................................

116

CONSULT Reference Value in Data Monitor
Mode ......................................................................

116

Diagnosis Procedure .............................................

116

4TH POSITION SWITCH .................................

118

TM-6

< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000009885679

INTRODUCTION

The TCM receives a signal from the output speed sensor, accelera-

tor pedal position sensor (throttle position sensor) or transmission

range switch. Then provides shift control or lock-up control via A/T

solenoid valves.

The TCM also communicates with the ECM by means of a signal

sent from sensing elements used with the OBD-related parts of the

A/T system for malfunction-diagnostic purposes. The TCM is capa-

ble of diagnosing malfunctioning parts while the ECM can store mal-

functions in its memory.

Input and output signals must always be correct and stable in the

operation of the A/T system. The A/T system must be in good oper-

ating condition and be free of valve seizure, solenoid valve malfunc-

tion, etc.

It is much more difficult to diagnose an error that occurs intermit-

tently rather than continuously. Most intermittent errors are caused

by poor electric connections or improper wiring. In this case, careful

checking of suspected circuits may help prevent the replacement of

good parts.

A visual check only may not find the cause of the errors. A road test

with CONSULT (or GST) or a circuit tester connected should be per-

formed. Follow the “DETAILED FLOW”.

Before undertaking actual checks, take a few minutes to talk with a

customer who approaches with a driveability complaint. The cus-

tomer can supply good information about such errors, especially

intermittent ones. Find out what symptoms are present and under

what conditions they occur. A “Diagnostic work sheet” as shown on

the example (Refer to

TM-7

) should be used.

Start your diagnosis by looking for “conventional” errors first. This will

help troubleshoot driveability errors on an electronically controlled

engine vehicle.

Also check related Service bulletins.

DETAILED FLOW

COLLECT THE INFORMATION FROM THE CUSTOMER

Get the detailed information from the customer about the symptom (the condition and the environment when

the incident/malfunction occurred) using diagnosis worksheet. Refer to

TM-7, "Diagnostic Work Sheet"

>> GO TO 2.

CHECK SYMPTOM 1

Check the following items based on the information obtained from the customer.

• Fail-safe. Refer to

TM-122, "Fail-Safe"

• A/T fluid inspection. Refer to

TM-172, "Checking the A/T Fluid (ATF)"

• Stall test. Refer to

TM-179, "Inspection and Judgment"

• Line pressure test. Refer to

TM-181, "Inspection and Judgment"

SAT631IB

SAT632I

SEF234G

Nissan Titan. Manual - part 580