Infiniti Q45. Manual — part 67

TROUBLE DIAGNOSIS FOR SYMPTOMS

AT-181

D

E

F

G

H

I

J

K

L

M

A

B

AT

TCWM0482E

AT-182

TROUBLE DIAGNOSIS FOR SYMPTOMS

TCWM0483E

TROUBLE DIAGNOSIS FOR SYMPTOMS

AT-183

D

E

F

G

H

I

J

K

L

M

A

B

AT

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

A/T CHECK Indicator Lamp Does Not Come On

NCS0010E

SYMPTOM:

A/T CHECK indicator lamp does not come on for about 2 seconds when turning ignition switch to ON.

DIAGNOSTIC PROCEDURE

1.

CHECK CAN COMMUNICATION LINE

Perform self-diagnosis. Refer to

AT-87, "SELF-DIAGNOSTIC RESULT MODE"

,

AT-97, "TCM SELF-DIAG-

NOSTIC PROCEDURE (NO TOOLS)"

.

Is a malfunction in the CAN communication indicated in the results?

YES

>> Check CAN communication line. Refer to

AT-99, "DTC U1000 CAN COMMUNICATION LINE"

.

NO

>> GO TO 2.

2.

CHECK A/T CHECK INDICATOR LAMP CIRCUIT

Check the combination meters. Refer to

DI-7, "COMBINATION METERS"

.

OK or NG

OK

>> GO TO 3

NG

>> Repair or replace damaged parts.

3.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to

AT-173, "MAIN POWER SUPPLY AND GROUND CIR-

CUIT"

.

OK or NG

OK

>> INSPECTION END

NG

>> Repair or replace damaged parts.

Engine Cannot Be Started In “P” or “N” Position

NCS0010F

SYMPTOM:

●

Engine cannot be started with selector lever in “P” or “N” position.

●

Engine can be started with selector lever in “D”or “R” position.

DIAGNOSTIC PROCEDURE

1.

CHECK PNP SWITCH CIRCUIT

Perform self-diagnosis. Refer to

AT-87, "SELF-DIAGNOSTIC RESULT MODE"

,

AT-97, "TCM SELF-DIAG-

NOSTIC PROCEDURE (NO TOOLS)"

.

Do the self-diagnostic results indicate PNP switch?

YES

>> Check the malfunctioning system. Refer to

AT-107, "DTC P0705 PARK/NEUTRAL POSITION

SWITCH"

.

NO

>> GO TO 2.

Terminal

Wire

color

Item

Condition

Data (Approx.)

3

L

CAN-H

–

–

4

PU

K-line (CONSULT-
II signal)

The terminal is connected to the data link connector for CONSULT-II.

–

7

R

Back-up lamp
relay

Selector lever in “R” position.

0 V

Selector lever in other positions.

Battery voltage

8

P

CAN-L

–

–

AT-184

TROUBLE DIAGNOSIS FOR SYMPTOMS

2.

CHECK CONTROL LINKAGE

Check the control linkage. Refer to

AT-218, "Checking of A/T Position"

.

OK or NG

OK

>> GO TO 3.

NG

>> Adjust control linkage. Refer to

AT-218, "Adjustment of A/T Position"

.

3.

CHECK STARTING SYSTEM

Check starting system. Refer to

SC-9, "STARTING SYSTEM"

.

OK or NG

OK

>> INSPECTION END

NG

>> Repair or replace damaged parts.

In “P” Position, Vehicle Moves When Pushed

NCS0010G

SYMPTOM:

Even though the selector lever is set in “P” position, the parking mechanism is not actuated, allowing
the vehicle to be moved when it is pushed.

DIAGNOSTIC PROCEDURE

1.

CHECK PNP SWITCH CIRCUIT

Perform self-diagnosis. Refer to

AT-87, "SELF-DIAGNOSTIC RESULT MODE"

,

AT-97, "TCM SELF-DIAG-

NOSTIC PROCEDURE (NO TOOLS)"

.

Do the self-diagnostic results indicate PNP switch?

YES

>> Check the malfunctioning system. Refer to

AT-107, "DTC P0705 PARK/NEUTRAL POSITION

SWITCH"

.

NO

>> GO TO 2.

2.

CHECK CONTROL LINKAGE

Check the control linkage. Refer to

AT-218, "Checking of A/T Position"

.

OK or NG

OK

>> GO TO 3.

NG

>> Adjust control linkage. Refer to

AT-218, "Adjustment of A/T Position"

.

3.

CHECK PARKING COMPONENTS

Check parking components. Refer to

AT-237, "Parking Components"

.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace damaged parts.

4.

CHECK A/T FLUID CONDITION

1.

Remove oil pan. Refer to

AT-225, "Control Valve with TCM and A/T Fluid Temperature Sensor 2"

.

2.

Check A/T fluid condition. Refer to

AT-51, "A/T Fluid Condition Check"

.

OK or NG

OK

>> INSPECTION END

NG

>> Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to

AT-61, "Symptom Chart"

(Symptom No.65).