Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 317

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-117

NEUTRAL START SWITCH INSPECTION

Inspection

With a circuit tester, make a continuity test on the neutral
start switch with the moving piece set in each position.

Terminal

Position

1

4

3

5 2 6 8 7

9

P

○

○

○

○

R

○

○

N

○

○

○

○

D

○

○

2

○

○

L

○

○

249RY00010

○ ○ Continuity

Removal

Preparation:
Disconnect negative (-) battery cable.
1. Remove rear sound cover (UBS).
2. Remove the rear side ATF cooler pipe from the

transmission elbow.

3. Disconnect neutral start switch connector.
4. Unstake the lock washer, and then remove the shaft

nut.

5. Remove the neutral start switch.

Installation

To install, follow the removal steps in the reverse order,
noting the following points;
Torque:
Nut – 7 N････m (0.7 kg････m/61 Ib････in)
Bolt – 13 N････m (1.3 kg････m/113 Ib････in)

249RY00008

Adjustment

1. Loosen the neutral start switch bolt and set the shift

selector to the “N” range.

2. Align the groove and neutral basic line.
3. Hold in position and tighten the bolt.
Torque: 13 N････m (1.3 kg････m/113 Ib････in)

7A-118 AUTOMATIC TRANSMISSION (AW30-40LE)

310RW020

BRAKE SIGNAL INSPECTION

Check that the brake light comes on when the brake pedal
is depressed.

F07RY00017

VEHICLE SPEED SENSOR INSPECTION

1. Connect the vehicle speed sensor connector terminal

(1) to the battery ( +) terminal and terminal (2) to the
battery (-) terminal.

2. Connect a resistance of 1.3k ohm to 5k ohm (1.4W or

more) between terminals (1) and (3).
NOTE:
Be extremely careful not to connect the battery (+)
terminal to the terminal (3).
This may damage the vehicle speed sensor.

3. Rotate the shaft of the vehicle speed sensor slowly and

measure the voltage at both ends with a digital tester.
The voltage, with one rotation of shaft, fluctuates four
times in the following range: 10 to 14V ⇔ 2V or less.
Replace the sensor when the result of inspection is
found abnormal.

F07RY00018

INPUT AND OUTPUT REVOLUTION

SENSOR INSPECTION

1. Disconnect the input and output revolution sensor

connector.

2. Use an ohmmeter to measure the resistance between

terminals 1 and 2.
Standard resistance
Input revolution sensor: 387 – 473 Ω

Ω

Ω

Ω (at 20℃

℃

℃

℃, 4×

×

×

×2)

560 – 680 Ω

Ω

Ω

Ω (at 20℃

℃

℃

℃, 4×

×

×

×4)

Output revolution sensor: 560 – 680 Ω

Ω

Ω

Ω (at 20℃

℃

℃

℃)

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-119

UBS

F07RY00019

TF

F07L100005

PATTERN SELECT SWITCH INSPECTION

Inspect that there is continuity between each terminals.

UBS

225R200003

TF

225L200001

OVERDRIVE SWITCH INSPECTION

Inspect that there is continuity between each terminals.

7A-120 AUTOMATIC TRANSMISSION (AW30-40LE)

220L100001

SOLENOID INSPECTION

1. Resistance

check

・ Using an ohmmeter, check the resistance between

each terminals (S1/S2/SL) and body.

Solenoid S1, S2 and lock-up solenoid resistance:

11 – 15 Ω

Ω

Ω

Ω (at 20℃

℃

℃

℃)

(Reference) 12 – 16 Ω

Ω

Ω

Ω (at 40℃

℃

℃

℃)

・ Using an ohmmeter, check the resistance between

each terminals (STH) and (STHG).

Pressure control solenoid resistance:

5 – 5.6 Ω

Ω

Ω

Ω (at 20℃

℃

℃

℃)

(Reference) 5.4 – 6.1 Ω

Ω

Ω

Ω (at 40℃

℃

℃

℃)

NOTE:
If the pressure control solenoid resistance is not
within specification, replace the valve body
assembly.

2. Operation

check

Check the solenoid operation by blowing into an oil
hole as shown in the figure.

Solenoid S1 and S2 (Normal close type)

When battery terminal is

disconnected

No air leaks

When battery terminal is

connected

Air passes through

244RX00001

Lock-up solenoid S3 (Normal open type)

When battery terminal is

disconnected

Air passes through

When battery terminal is

connected

No air leaks

244RY00005

249L100001

ATF TEMPERATURE SENSOR

INSPECTION

1. Disconnect the front side ATF cooler pipe from the

elbow and remove the elbow.

2. Remove the ATF temperature sensor from the

transmission case.

3. Place the ATF temperature sensor in a container of

ATF.