Nissan Pathfinder (2006 year). Manual - part 14

DTC U1000 CAN COMMUNICATION LINE

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2006 Pathfinder

DTC U1000 CAN COMMUNICATION LINE

PFP:23710

Description

ECS00EFI

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/receives data but selectively reads required data only.

On Board Diagnosis Logic

ECS00EFJ

●

This is an OBD-II self-diagnostic item.

●

Diagnostic trouble code “U1000 CAN COMM CIRCUIT” with CONSULT-II or 17th judgement flicker with-
out CONSULT-II is detected when TCM cannot communicate to other control units.

Possible Cause

ECS00EFK

Harness or connectors
(CAN communication line is open or shorted.)

DTC Confirmation Procedure

ECS00EFL

NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

 WITH CONSULT-II

1.

Turn ignition switch “ON”. (Do not start engine.)

2.

Select “DATA MONITOR” mode for “ENGINE” with CONSULT-II.

3.

Start engine and wait for at least 6 seconds.

4.

If DTC is detected, go to 

AT-105, "Diagnostic Procedure"

 .

 WITH GST

Follow the procedure “WITH CONSULT-II”.

BCIA0030E

AT-104

DTC U1000 CAN COMMUNICATION LINE

2006 Pathfinder

Wiring Diagram — AT — CAN

ECS00EFM

BCWA0320E

DTC U1000 CAN COMMUNICATION LINE

AT-105

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2006 Pathfinder

TCM terminal and Data are reference value.

Diagnostic Procedure

ECS00EFN

1. 

CHECK CAN COMMUNICATION CIRCUIT

 With CONSULT-II

1.

Turn ignition switch “ON” and start engine.

2.

Select “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-
II.

Is any malfunction of the “CAN COMM CIRCUIT” indicated?

YES

>> Print out CONSULT-II screen, GO TO LAN section.

Refer to 

LAN-3, "Precautions When Using CONSULT-II"

.

NO

>> INSPECTION END

Terminal   

No.

Wire 

color

Item

Condition

Data (Approx.)

3

L

CAN H

–

–

8

P

CAN L

–

–

PCIA0061E

AT-106

DTC P0615 START SIGNAL CIRCUIT

2006 Pathfinder

DTC P0615 START SIGNAL CIRCUIT

PFP:25230

Description

ECS00EFO

●

TCM prohibits cranking other than at “P” or “N” position.

CONSULT-II Reference Value

ECS00EFP

On Board Diagnosis Logic

ECS00EFQ

●

This is not an OBD-II self-diagnostic item. 

●

Diagnostic trouble code “P0615 STARTER RELAY/CIRC” with CONSULT-II or 14th judgement flicker
without CONSULT-II is detected when park/neutral (PNP) relay (starter relay) is switched “ON” other than
at “P” or “N” position. (Or when switched “OFF” at “P” or “N” position).

Possible Cause

ECS00EFR

●

Harness or connectors
[The park/neutral position (PNP) relay (starter relay) and TCM circuit is open or shorted.]

●

Park/neutral position (PNP) relay (starter relay)

DTC Confirmation Procedure

ECS00EFS

NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

 WITH CONSULT-II

1.

Turn ignition switch “ON”. (Do not start engine.)

2.

Select “DATA MONITOR” mode for “A/T” with CONSULT-II.

3.

Start engine.

4.

Drive vehicle for at least 2 consecutive seconds.

5.

If DTC is detected, go to 

AT-108, "Diagnostic Procedure"

 .

Item name

Condition 

Display value

STARTER RELAY

Selector lever in “N”, “P” positions.

ON

Selector lever in other position.

OFF

BCIA0030E

DTC P0615 START SIGNAL CIRCUIT

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2006 Pathfinder

Wiring Diagram — AT — STSIG

ECS00EFT

BCWA0385E

AT-108

DTC P0615 START SIGNAL CIRCUIT

2006 Pathfinder

TCM terminals and data are reference value. Measured between each terminal and ground.

Diagnostic Procedure

ECS00EFU

1. 

CHECK STARTER RELAY

 With CONSULT-II

1.

Turn ignition switch ON. (Do not start engine.)

2.

Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “A/T” with CONSULT-II and check monitor “STARTER
RELAY” ON/OFF.

 Without CONSULT-II

1.

Turn ignition switch ON. (Do not start engine.)

2.

Check voltage between the IPDM E/R connector and ground.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 2.

2. 

 CHECK HARNESS BETWEEN A/T ASSEMBLY HARNESS CONNECTOR AND IPDM E/R CONNEC-

TOR

1.

Turn ignition switch OFF.

2.

Disconnect A/T assembly harness connector and IPDM E/R connector.

3.

Check continuity between A/T assembly harness connector and
IPDM E/R connector.

4.

If OK, check harness for short to ground and short to power.

5.

Reinstall any part removed.

OK or NG

OK

>> GO TO 3.

NG

>> Repair open circuit or short to ground or short to power in harness or connectors.

Terminal

Wire 

color

Item

Condition

Data (Approx.)

9

R

Starter  relay

Selector lever in “N”, “ P” positions.

Battery voltage

Selector lever in other positions.

0V

PCIA0056E

Item

Connector

Terminal

Shift position

Voltage 

(Approx.) 

Starter relay

E122

48

Ground

“N” and “P”

Battery voltage

“R” and “D”

0V

LCIA0320E

Item

 Connector

Terminal

Continuity

A/T assembly harness 
connector

F9

9

Yes

IPDM E/R connector

E122

48

SCIA6254E

DTC P0615 START SIGNAL CIRCUIT

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2006 Pathfinder

3. 

CHECK TERMINAL CORD ASSEMBLY

1.

Remove control valve with TCM. Refer to 

AT-233, "Control Valve With TCM and A/T Fluid Temperature

Sensor 2"

 .

2.

Disconnect A/T assembly harness connector and TCM connector.

3.

Check continuity between A/T assembly harness connector ter-
minal and TCM connector terminal.

4.

If OK, check harness for short to ground and short to power.

5.

Reinstall any part removed.

OK or NG

OK

>> GO TO 4.

NG

>> Replace open circuit or short to ground and short to power in harness or connectors.

4. 

DETECT MALFUNCTIONING ITEM

Check the following.

●

Starter relay, Refer to 

SC-10, "STARTING SYSTEM"

 .

●

IPDM E/R, Refer to 

PG-18, "IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE

ROOM)"

 .

OK or NG

OK

>> Replace the control valve with TCM. Refer to 

AT-233, "Control Valve With TCM and A/T Fluid

Temperature Sensor 2"

 .

NG

>> Repair or replace damaged parts.

5. 

CHECK DTC

Perform 

AT-106, "DTC Confirmation Procedure"

 .

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 2.

Item

 Connector

Terminal

Continuity

A/T assembly harness 
connector

F9

9

Yes

TCM connector 

F502

8

SCIA5440E

AT-110

DTC P0700 TCM

2006 Pathfinder

DTC P0700 TCM

PFP:31036

Description

ECS00EFV

The TCM consists of a microcomputer and connectors for signal input and output and for power supply. The
TCM controls the A/T.

On Board Diagnosis Logic

ECS00EFW

●

This is an OBD-II self-diagnostic item. 

●

Diagnostic trouble code “P0700 TCM” with CONSULT-II is detected when the TCM is malfunctioning.

Possible Cause

ECS00EFX

TCM.

DTC Confirmation Procedure

ECS00EFY

NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

 WITH CONSULT-II

1.

Turn ignition switch “ON”. (Do not start engine.)

2.

Select “DATA MONITOR” mode for “A/T” with CONSULT-II.

3.

Start engine.

4.

Run engine for at least 2 consecutive seconds at idle speed.

5.

If DTC is detected, go to 

AT-110, "Diagnostic Procedure"

 .

 WITH GST

Follow the procedure “WITH CONSULT-II”.

Diagnostic Procedure

ECS00EFZ

1. 

CHECK DTC

 With CONSULT-II

1.

Turn ignition switch “ON”. (Do not start engine.)

2.

Select “SELF DIAG RESULTS” mode for “A/T” with CONSULT-
II.

3.

Touch “ERASE”.

4.

Turn ignition switch “OFF” and wait at least 10 seconds.

5.

Perform 

AT-110, "DTC Confirmation Procedure"

 .

Is the “TCM” displayed again?

YES

>> Replace the control valve with TCM. Refer to 

AT-233,

"Control Valve With TCM and A/T Fluid Temperature
Sensor 2"

 .

NO

>> INSPECTION END

BCIA0030E

BCIA0031E