Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 292

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-17

‘01TFR For Thailand

C07R200023

Legend

1. Overdrive direct clutch (C-0)
2. Overdrive brake (B-0)
3. Direct clutch (C-2)
4. Second coast brake (B-1)
5. Forward clutch (C-1)
6. Second brake (B-2)
7. First and reverse brake (B-3)
8. One-way clutch (No.2) (F-2)

9. Shift solenoid (S-1)
10. Shift solenoid (S-2)
11. One-way clutch (No.1) (F-1)
12. Pressure control solenoid (STH)
13. Lock-up solenoid (SL)
14. Overdrive one-way clutch (F-0)

7A-18 AUTOMATIC TRANSMISSION (AW30-40LE)

OPERATION OF CLUTCH, BRAKE AND ONE-WAY CLUTCH

: Operating : Free at coast down : Operating at lock-up

Shift lever

position

Gear position C-0 C-1 C-2

B-0

B-1

B-2

B-3

F-0

F-1

F-2 S-1 S-2

S-3

P Parking

R Reverse

N Neutral

1st

2nd

3rd

D

O/D

1st

2nd

2

3rd

1st

○

(1*) 2nd

L

(2*) 3rd

(1*) Down-shift only in the L range and 2nd gear – no up-shift

(2*) Down-shift only in the L range and 3rd gear – no up-shift

SPEED CHANGE AND LOCK-UP PATTERN

If you select a speed range and a lock-up pattern as shown below by specifying respective positions of
transmission shift lever, transfer shift lever and pattern select switch, the transmission control computer controls
speed change and lock-up operations based on the specified pattern in accordance with the degree of throttle
opening and vehicle speed.

Transmission shift position

D

Pattern select sw.

position

Overdrive switch

ON

Overdrive switch

OFF

2 L

NORMAL, POWER

1st⇔[2nd]*⇔[3rd]⇔

[O/D]

1st⇔[2nd]*⇔[3rd]←

[O/D]

1st⇔2nd⇔(3rd) 1st←(2nd)←(3rd)

WINTER (UBS)

3rd fixing





[ ]: The lock-up operation is available.
( ): Transmission is shifted at high speed to prevent overrun.

*: TF model

AUTOMATIC TRANSMISSION (AW30-40LE) 7A-19

OVERDRIVE AND LOCK-UP OPERATING CONDITIONS

The overdrive and lock-up clutch operate if the following conditions are satisfied.

Overdrive

Lock-up

clutch

Transmission shift position

D range

← (1*)

O/D switch position

ON

(O/D OFF lamp OFF)

―

Brake lamp switch

― OFF

Throttle opening

― Except

fully

closed

Vehicle speed

(UBS)
About 49 km/h or more
(TFR/S)
About 34 km/h or more
(’01 TFR)
About 32 km/h or more

(UBS)
3rd: About 50 km/h or more
O/D: About 65 km/h or more
(TFR/S)
2nd: About 35 km/h or more
3rd: About 49 km/h or more
O/D: About 59 km/h or more
(’01 TFR)
2nd: About 31 km/h or more
3rd: About 46 km/h or more
O/D: About 61 km/h or more

(1*): If transmission oil temperature is more than 130

°C (UBS and ‘01TFR) or 140°C (TFR/S), lock-up is

inhibit.

7A-20 AUTOMATIC TRANSMISSION (AW30-40LE)

DIAGNOSIS

BASIC TROUBLESHOOTING

AW30-40LE transmission, called Electronic Controlled Transmission (ECT), differs from the Mechanical - Hydraulic
control type transmissions. Accordingly, its troubleshooting procedure differs also.
Before troubleshooting an ECT, first determine whether the problem is electrical or mechanical. To do this, just
refer to the basic troubleshooting flowchart provided below.
If the cause is already known, using the basic troubleshooting chart below along with the troubleshooting chart
should speed the procedure.

F07R200005