Nissan Frontier D22. Manual — part 105

TROUBLE DIAGNOSES FOR SYMPTOMS

AT-389

[RE4R01A]

D

E

F

G

H

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A

B

AT

DIAGNOSTIC PROCEDURE

NOTE:
The diagnostic procedure includes inspections for the overdrive control and throttle position switch circuits.

1.

CHECK PNP SWITCH CIRCUIT (WITH CONSULT-II)

With CONSULT-II

1.

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

2.

Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.

3.

Read out P, R, N, D, 2 and 1 position switches moving selector
lever to each position. Check the signal of the selector lever
position is indicated properly.

OK or NG

OK

>> GO TO 3.

NG

>> Check the following items:

●

PNP switch
Refer to

AT-393, "PNP Switch"

.

●

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

●

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

2.

CHECK PNP SWITCH CIRCUIT (WITHOUT CONSULT-II)

Without CONSULT-II

1.

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

2.

Check voltage between TCM terminals (26, 27, 34, 35, 36) and ground while moving selector lever
through each position.

Does battery voltage exist (B) or non-existent (0)?

Yes

>> GO TO 3.

No

>> Check the following items:

●

PNP switch
Refer to

AT-393, "PNP Switch"

.

●

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

●

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

SAT701J

Lever Position

Terminals

36

35

34

27

26

P, N

B

0

0

0

0

R

0

B

0

0

0

D

0

0

B

0

0

2

0

0

0

B

0

1

0

0

0

0

B

LAT457

AT-390

[RE4R01A]

TROUBLE DIAGNOSES FOR SYMPTOMS

3.

CHECK OVERDRIVE CONTROL SWITCH CIRCUIT

With CONSULT-II

1.

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

2.

Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.

3.

Read out “OVERDRIVE SW”. Check the signal of the overdrive control switch is indicated properly.
(Overdrive control switch ON displayed on CONSULT-II means
overdrive OFF.)

Without CONSULT-II

1.

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

2.

Check voltage between TCM harness connector M77 terminal
22 and ground when overdrive control switch is ON and OFF.

OK or NG

OK (With CONSULT-II)>> GO TO 4.
OK (Without CONSULT-II)>> GO TO 5.
NG

>> Check the following items:

●

Overdrive control switch
Refer to

AT-392, "Overdrive Control Switch"

.

●

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

●

Harness for short or open of ground circuit for overdrive control switch (Main harness)

SAT645J

Voltage

Switch position ON

: Battery voltage

Switch position OFF

: 1V or less

AAT510A

TROUBLE DIAGNOSES FOR SYMPTOMS

AT-391

[RE4R01A]

D

E

F

G

H

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J

K

L

M

A

B

AT

4.

CHECK THROTTLE POSITION SWITCH CIRCUIT (WITH CONSULT-II)

With CONSULT-II

1.

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

2.

Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.

3.

Read out “CLOSED THL/SW” and “W/O THRL/P-SW” depressing and releasing accelerator pedal.
Check the signal of throttle position switch is indicated properly.

OK or NG

OK

>> GO TO 6.

NG

>> Check the following items:

●

Throttle position switch
Refer to

AT-394, "Throttle Position Switch"

.

●

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

●

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

Accelerator pedal condi-

tion

Data Monitor

CLOSED THL/SW

W/O THRL/P-SW

Released

ON

OFF

Fully depressed

OFF

ON

SAT646J

AT-392

[RE4R01A]

TROUBLE DIAGNOSES FOR SYMPTOMS

5.

CHECK THROTTLE POSITION SWITCH CIRCUIT (WITHOUT CONSULT-II)

Without CONSULT-II

1.

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

2.

Check voltage between TCM terminals (16, 17) and ground while depressing, and releasing accelerator
pedal slowly. (after warming up engine).

OK or NG

OK

>> GO TO 6.

NG

>> Check the following items:

●

Throttle position switch
Refer to

AT-394, "Throttle Position Switch"

.

●

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

●

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

6.

CHECK DTC

Perform diagnostic procedure. Refer to

AT-389, "DIAGNOSTIC PROCEDURE"

.

OK or NG

OK

>> INSPECTION END.

NG

>> 1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

COMPONENT INSPECTION
Overdrive Control Switch

●

Check continuity between terminals 5 and 6.

WAT337

Continuity

Switch position ON

: No

Switch position OFF

: Yes

AAT512A