Infiniti QX4 (R50). Manual — part 54

SAT574J

Description

NBAT0215

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

ON BOARD DIAGNOSIS LOGIC

NBAT0215S01

Diagnostic trouble code

Malfunction is detected when ...

Check item (Possible cause)

: CONT UNIT (EEP ROM)

TCM memory (EEP ROM) is malfunc-
tioning.

TCM

SAT014K

SAT971J

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE

NBAT0215S02

NOTE:
If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DURE” has been previously conducted, always turn ignition
switch “OFF” and wait at least 5 seconds before conducting
the next test.

With CONSULT-II

1)

Turn ignition switch “ON” and select “DATA MONITOR” mode
for A/T with CONSULT-II.

2)

Start engine.

3)

Run engine for at least 2 seconds at idle speed.

GI

MA

EM

LC

EC

FE

TF

PD

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

DTC CONTROL UNIT (EEP ROM)

Description

AT-213

Diagnostic Procedure

=NBAT0216

1

CHECK DTC

With CONSULT-II

1. Turn ignition switch “ON” and select “SELF DIAG RESULTS” mode for A/T with CONSULT-II.
2. Move selector lever to “R” position.
3. Depress accelerator pedal (Full throttle position).
4. Touch “ERASE”.
5. Turn ignition switch “OFF” position for 10 seconds.
PERFORM DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE.
See previous page.

Is the “CONTROL UNIT (EEP ROM)” displayed again?

Yes

©

Replace TCM.

No

©

INSPECTION END

DTC CONTROL UNIT (EEP ROM)

Diagnostic Procedure

AT-214

Wiring Diagram — AT — NONDTC

NBAT0203

MAT059B

GI

MA

EM

LC

EC

FE

TF

PD

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

TROUBLE DIAGNOSES FOR SYMPTOMS

Wiring Diagram — AT — NONDTC

AT-215

MAT919A

TROUBLE DIAGNOSES FOR SYMPTOMS

Wiring Diagram — AT — NONDTC (Cont’d)

AT-216