Nissan Frontier D22. Manual — part 95

DTC CONTROL UNIT (RAM), CONTROL UNIT (ROM)

AT-349

[RE4R01A]

D

E

F

G

H

I

J

K

L

M

A

B

AT

DTC CONTROL UNIT (RAM), CONTROL UNIT (ROM)

PFP:31036

Description

ECS007O2

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

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE

NOTE:
If “DTC CONFIRMATION PROCEDURE” 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.

SAT574J

Diagnostic trouble code

Malfunction is detected when ...

Check Items (Possible Cause)

: CONTROL UNIT (RAM)

: CONTROL UNIT (ROM)

●

TCM memory (RAM) or (ROM) is mal-
functioning.

●

TCM

SAT014K

SAT971J

AT-350

[RE4R01A]

DTC CONTROL UNIT (RAM), CONTROL UNIT (ROM)

Diagnostic Procedure

ECS007O3

1.

INSPECTION START

With CONSULT-II

1.

Turn ignition switch ON and select “SELF DIAG RESULTS” mode for A/T with CONSULT-II.

2.

Touch “ERASE”.

3.

Turn ignition switch OFF for 10 seconds.

4.

Perform

AT-349, "DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE"

.

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

Yes or No

Yes

>> Replace TCM.

No

>> INSPECTION END.

DTC CONTROL UNIT (EEP ROM)

AT-351

[RE4R01A]

D

E

F

G

H

I

J

K

L

M

A

B

AT

DTC CONTROL UNIT (EEP ROM)

PFP:31036

Description

ECS007O4

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

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE

NOTE:
If “DTC CONFIRMATION PROCEDURE” 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.

SAT574J

Diagnostic trouble code

Malfunction is detected when ...

Check item (Possible cause)

: CONT UNIT (EEP ROM)

TCM memory (EEP ROM) is malfunction-
ing.

TCM

SAT014K

SAT971J

AT-352

[RE4R01A]

DTC CONTROL UNIT (EEP ROM)

Diagnostic Procedure

ECS007O5

1.

INSPECTION START

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 for ten seconds.

Perform

AT-351, "DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE"

.

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

Yes or No

Yes

>> Replace TCM.

No

>> INSPECTION END.