Nissan Terrano r20e. Manual — part 25

5. Engine Cannot Be Started In “P” and “N”

Position

SYMPTOM:

I

Engine cannot be started with selector lever in “P” or “N”
position.

I

Engine can be started with selector lever in “D”, “2”, “1”
or “R” position.

Does “ECU INPUT SIGNALS” in
Data Monitor show damage to park/
neutral position switch circuit?

----------------------------------------------------------------------------------------------------------------------- OR -----------------------------------------------------------------------------------------------------------------------

Does self-diagnosis show damage to
park/neutral position switch circuit?

No

E

Yes

Check park/neutral position
switch. Refer to AT-88.

Check for short or open of park/neutral
position switch 2-pin connector. Refer to
AT-88.

OK

E

NG

Repair or replace park/
neutral position switch.

Check starting system. Refer to EL sec-
tion (“System Description”, “STARTING
SYSTEM”).

OK

E

NG

Repair or replace dam-
aged parts.

INSPECTION END

6. In “P” Position, Vehicle Moves Forward Or

Backward When Pushed

SYMPTOM:

Vehicle moves when it is pushed forward or backward with
selector lever in “P” position.

Check parking pawl components. Refer to
AT-175.

OK

E

NG

Repair or replace dam-
aged parts.

INSPECTION END

SAT146BA

NAT275

SAT133B

H

H

H

H

DIAGNOSTIC PROCEDURES FOR SYMPTOMS

AT-97

7. In “N” Position, Vehicle Moves

SYMPTOM:

Vehicle moves forward or backward when selecting “N” posi-
tion.

Does “ECU INPUT SIGNALS” in
Data Monitor show damage to park/
neutral position switch circuit?

----------------------------------------------------------------------------------------------------------------------- OR -----------------------------------------------------------------------------------------------------------------------

Does self-diagnosis show damage to
park/neutral position switch circuit?

No

E

Yes

Check park/neutral position
switch. Refer to AT-92.

Check control linkage. Refer to AT-115.

OK

E

NG

Adjust control linkage.
Refer to AT-115.

Check A/T fluid level again.

OK

E

NG

Refill ATF.

1. Remove oil pan.
2. Check A/T fluid condition.

OK

E

NG

1. Disassemble A/T.
2. Check the following

items:

I

Forward clutch assembly

I

Overrun clutch assembly

I

Reverse clutch assembly

Check again.

OK

E

NG

1. Perform TCM input/

output signal inspection.

2. If NG, recheck TCM pin

terminals for damage or
loose connection with
harness connector.

INSPECTION END

SAT146BA

NAT276

SAT638A

SAT171B

H

H

H

H

H

H

DIAGNOSTIC PROCEDURES FOR SYMPTOMS

AT-98

8. Large Shock. “N”

→

“R” Position

SYMPTOM:

There is large shock when changing from “N” to “R” position.

Does self-diagnosis show damage to line
pressure solenoid valve or throttle (accel-
erator) position sensor, A/T fluid tempera-
ture sensor circuit?

No

E

Yes

Check damaged circuit.
Refer to AT-60, AT-76 or
AT-84.

Check throttle (accelerator) position sen-
sor. Refer to EC section [TROUBLE
DIAGNOSIS FOR “THROTTLE (ACCEL)
POSI SEN” (DTC 43)].

OK

E

NG

Repair or replace throttle
(accelerator) position sen-
sor.

Check line pressure at idle with selector
lever in “D” position. Refer to “Line Pres-
sure Test”, AT-30.

OK

E

NG

1. Remove control valve

assembly. Refer to
AT-113.

2. Check the following

items:

I

Valves to control line
pressure (Pressure regu-
lator valve, pressure
modifier valve, pilot valve
and pilot filter)

I

Line pressure solenoid
valve

Check again.

OK

E

NG

1. Perform TCM input/

output signal inspection.

2. If NG, recheck TCM pin

terminals for damage or
loose connection with
harness connector.

INSPECTION END

SAT831HA

NAT262

SAT494G

H

H

H

H

H

DIAGNOSTIC PROCEDURES FOR SYMPTOMS

AT-99

9. Vehicle Does Not Creep Backward In “R”

Position

SYMPTOM:

Vehicle does not creep backward when selecting “R” position.

Check A/T fluid level again.

OK

E

NG

Refill ATF.

q

A

NG in both “1”
and “R” positions

Check stall revolution with selector
lever in “1” and “R” positions.

OK

OK in “1” position
NG in “R” position

E

1. Remove control valve

assembly. Refer to AT-113.

2. Check the following items:

I

Valves to control line pres-
sure (Pressure regulator
valve, pressure modifier
valve, pilot valve and pilot
filter)

I

Line pressure solenoid valve

3. Disassemble A/T.
4. Check the following items:

I

Oil pump assembly

I

Torque converter

I

Reverse clutch assembly

I

High clutch assembly

I

Low & reverse brake assem-
bly

I

Low one-way clutch

1. Remove control valve

assembly. Refer to AT-113.

2. Check the following items:

I

Valves to control line pres-
sure (Pressure regulator
valve, pressure modifier
valve, pilot valve and pilot
filter)

I

Line pressure solenoid valve

3. Disassemble A/T.
4. Check the following items:

I

Oil pump assembly

I

Torque converter

I

Reverse clutch assembly

I

High clutch assembly

Check line pressure at idle with
selector lever in “R” position. Refer to
“Line Pressure Test”, AT-30.

OK

E

NG

1. Remove control valve

assembly. Refer to AT-113.

2. Check the following items:

I

Valves to control line pres-
sure (Pressure regulator
valve, pressure modifier
valve, pilot valve and pilot
filter)

I

Line pressure solenoid valve

3. Disassemble A/T.
4. Check the following item:

I

Oil pump assembly

1. Remove oil pan.
2. Check A/T fluid condition.

NG

OK

q

A

Check again.

OK

E

NG

1. Perform TCM input/output

signal inspection.

2. If NG, recheck TCM pin ter-

minals for damage or loose
connection with harness con-
nector.

INSPECTION END

SAT638A

SAT493G

SAT494G

SAT171B

H

H

H

H

H

H

H

H

DIAGNOSTIC PROCEDURES FOR SYMPTOMS

AT-100