Infiniti Q45. Manual - part 48

DTC P0615 START SIGNAL CIRCUIT

AT-105

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4. 

CHECK TERMINAL CORD ASSEMBLY

1.

Remove control valve with TCM. Refer to 

AT-225, "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 5.

NG

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

5. 

DETECT MALFUNCTIONING ITEM

Check the following.

●

Park/neutral position relay. Refer to 

SC-9, "STARTING SYSTEM"

 .

OK or NG

OK

>> Replace the control valve with TCM. Refer to 

AT-225, "Control Valve with TCM and A/T Fluid Tem-

perature Sensor 2"

 .

NG

>> Repair or replace damaged parts.

6. 

CHECK DTC

Perform “DTC Confirmation Procedure”. Refer to 

AT-102, "DTC Confirmation Procedure"

 .

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 2.

Item

 Connector

Terminal

Continuity

A/T assembly harness con-
nector

F26

9

Yes

TCM connector 

F502

8

SCIA5440E

AT-106

DTC P0700 TCM

DTC P0700 TCM

PFP:31036

Description

NCS000V1

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

NCS000V2

●

This is an OBD-II self-diagnostic item.

●

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

Possible Cause

NCS000V3

TCM.

DTC Confirmation Procedure

NCS000V4

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 “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA
MONITOR” mode for “A/T” with CONSULT-II.

3.

Touch “START”.

4.

Start engine.

5.

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

6.

If DTC is detected, go to 

AT-106, "Diagnostic Procedure"

 .

 WITH GST

Follow the procedure “WITH CONSULT-II”.

Diagnostic Procedure

NCS000V5

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 for at least 10 seconds.

5.

Perform DTC confirmation procedure, 

AT-106, "DTC Confirmation Procedure"

 .

Is the “TCM” displayed again?

YES

>> Replace the control valve with TCM. Refer to 

AT-225, "Control Valve with TCM and A/T Fluid Tem-

perature Sensor 2"

 .

NO

>> INSPECTION END

BCIA0031E

DTC P0705 PARK/NEUTRAL POSITION SWITCH

AT-107

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DTC P0705 PARK/NEUTRAL POSITION SWITCH

PFP:32006

Description

NCS000V6

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The PNP switch includes a transmission range switch.

●

The transmission range switch detects the selector lever position and sends a signal to the TCM.

CONSULT-II Reference Value

NCS000V7

On Board Diagnosis Logic

NCS000V8

●

This is an OBD-II self-diagnostic item.

●

Diagnostic trouble code “P0705 PNP SW/CIRC” with CONSULT-II or 9th judgement flicker without CON-
SULT-II is detected under the following conditions.

–

When TCM does not receive the correct voltage signal from the PNP switches 1, 2, 3 and 4 based on the
gear position.

–

When no other position but “P” position is detected from “N” position.

Possible Cause

NCS000V9

●

Harness or connectors
PNP switches 1, 2, 3 and 4 and TCM circuit is open or shorted.

●

PNP switches 1, 2, 3 and 4 

DTC Confirmation Procedure

NCS000VA

CAUTION:

Always drive vehicle at a safe speed.
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 “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA
MONITOR” mode for “A/T” with CONSULT-II.

3.

Touch “START”.

4.

Start engine.

5.

Drive vehicle and maintain the following conditions for at least 2
consecutive seconds.
ACCELE POSI: More than 1.0/8

6.

If DTC is detected, go to 

AT-109, "Diagnostic Procedure"

 .

 WITH GST

Follow the procedure “WITH CONSULT-II”.

Item name

Condition 

Display value

SLCT LVR POSI

Selector lever in “N”, “P” positions.

N/P

Selector lever in “R” position.

R

Selector lever in “D” position.

D

BCIA0031E

AT-108

DTC P0705 PARK/NEUTRAL POSITION SWITCH

Wiring Diagram — AT — PNP/SW

NCS000VB

TCWM0303E