Nissan Frontier D22. Manual - part 96

TROUBLE DIAGNOSES FOR SYMPTOMS

AT-353

[RE4R01A]

D

E

F

G

H

I

J

K

L

M

A

B

AT

TROUBLE DIAGNOSES FOR SYMPTOMS

PFP:00007

Wiring Diagram — AT — NONDTC

ECS007O6

WCWA0171E

AT-354

[RE4R01A]

TROUBLE DIAGNOSES FOR SYMPTOMS

WCWA0110E

TROUBLE DIAGNOSES FOR SYMPTOMS

AT-355

[RE4R01A]

D

E

F

G

H

I

J

K

L

M

A

B

AT

WCWA0158E

AT-356

[RE4R01A]

TROUBLE DIAGNOSES FOR SYMPTOMS

1. O/D OFF Indicator Lamp Does Not Come On

ECS007O7

SYMPTOM:

●

O/D OFF indicator lamp does not come on for about 2 seconds when turning ignition switch to ON.

1. 

CHECK TCM POWER SOURCE

1.

Turn ignition switch to ON position.
(Do not start engine.)

2.

Check voltage between TCM harness connectors (M77, M78)
terminals (10, 19, 28) and ground.

3.

Turn ignition switch to OFF position.

4.

Check voltage between TCM connector terminal 28
 and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Check the following items:

●

Harness for short or open between ignition switch and TCM (Main harness)

●

Refer to

AT-246, "Wiring Diagram — AT — MAIN"

 .

●

Ignition switch and fuse
Refer to 

PG-9, "POWER SUPPLY ROUTING"

 .

2. 

CHECK TCM GROUND CIRCUIT

1.

Turn ignition switch to OFF position.

2.

Disconnect TCM harness connector.

3.

Check resistance between TCM harness connector M78 terminals (25, 48) and ground. Refer to wiring
diagram.

If OK, check harness for short to ground and short to power.

Is resistance approx. 0

Ω?

Yes

>> GO TO 3.

No

>>

●

Repair open circuit or short to ground or short to power in harness or connectors.

●

Refer to 

AT-246, "Wiring Diagram — AT — MAIN"

 .

3. 

CHECK LAMP CIRCUIT

1.

Turn ignition switch to ON position.

2.

Set overdrive control switch to ON position.

3.

Check voltage between TCM harness connector M78 terminal
13 and ground.

Does battery voltage exist?

Yes

>> GO TO 4.

No

>> Check the following items.

●

Fuse

●

O/D OFF indicator lamp
Refer to 

DI-25, "WARNING LAMPS"

 .

●

Harness for short or open between ignition switch and
O/D OFF indicator lamp (Main harness)

●

Refer to 

PG-9, "POWER SUPPLY ROUTING"

 .

●

Harness for short or open between O/D OFF indicator lamp and TCM 

Voltage

: Battery voltage

Voltage

: Battery voltage

AAT476A

AAT505A