Infiniti M35/M45 Y50. Manual

AT-190

TROUBLE DIAGNOSIS FOR SYMPTOMS

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

A/T CHECK Indicator Lamp Does Not Come On

NCS001PZ

SYMPTOM:

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

DIAGNOSTIC PROCEDURE

CHECK CAN COMMUNICATION LINE

Perform self-diagnosis. Refer to

AT-92, "SELF-DIAGNOSTIC RESULT MODE"

AT-103, "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-105, "DTC U1000 CAN COMMUNICATION LINE"

>> GO TO 2.

CHECK A/T CHECK INDICATOR LAMP CIRCUIT

Check combination meters. Refer to

DI-5, "COMBINATION METERS"

OK or NG

>> GO TO 3

>> Repair or replace damaged parts.

CHECK TCM POWER SUPPLY AND GROUND CIRCUIT

Check TCM power supply and ground circuit. Refer to

AT-180, "MAIN POWER SUPPLY AND GROUND CIR-

CUIT"

OK or NG

>> INSPECTION END

>> Repair or replace damaged parts.

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

NCS001Q0

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

CHECK PNP SWITCH CIRCUIT

Perform self-diagnosis. Refer to

AT-92, "SELF-DIAGNOSTIC RESULT MODE"

AT-103, "TCM SELF-DIAG-

NOSTIC PROCEDURE (NO TOOLS)"

Do the self-diagnostic results indicate PNP switch?

YES

>> Check malfunctioning system. Refer to

AT-113, "DTC P0705 PARK/NEUTRAL POSITION

SWITCH"

>> GO TO 2.

Terminal

Item

Condition

Data (Approx.)

CAN-H

–

K-line (CONSULT-II
signal)

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

–

Back-up lamp relay

Selector lever in “R” position.

0 V

Selector lever in other positions.

Battery voltage

CAN-L

–

Infiniti M35/M45 Y50. Manual - part 66