sensor OPEL FRONTERA 1998 Workshop Manual

7A–42
AUTOMATIC TRANSMISSION (4L30–E)
8. Connect wiring harness to band control and shift
solenoids.
9. Install roller and spring assembly to manual detent.
Install two 13 mm screws, and tighten them to the
specified torque.
Torque: 20 N
m (2.0 kgꞏm/15 lb ft)
10. Install oil filter and three 13 mm screws. Tighten the
screws to the specified torque.
Torque : 20 N
m (2.0 kgꞏm/15 lb ft)
11. Install oil pan gasket, magnet, oil pan and sixteen 10
mm screws. Tighten the screws to the specified
torque.
Torque: 11 N
m (1.1 kgꞏm/96 lb in)
12. Install third crossmember and rear mount. Tighten the
bolts and nuts to the specified torque.
Torque
Third crossmember bolt:
76 N
m (7.8 kgꞏm/56 lb ft)
Rear mount nut: 50 N
m(5.1kgꞏm/37lbft)
13. Install exhaust pipe and connect oxygen sensor
connector. Tighten the bolts to the specified torque.
Exhaust pipe flange bolt torque:
43 N
m (4.4 kgꞏm/32 lb ft)
14. Install transfer and exhaust protectors. Tighten the
bolts to the specified torque.
Torque: 37 N
m (3.8 kgꞏm/27 lb ft)
15. Fill transmission through overfill screw hole of oil pan,
using ATF DEXRON
–III, refer to Changing
Transmission Fluid in this section.
16. Connect battery ground cable.

7A–43 AUTOMATIC TRANSMISSION (4L30–E)
Valve Body Assembly (Adapter Case)
Removal
1. Raise the vehicle and support it on jack stands.
2. Disconnect battery ground cable.
3. Drain fluid.
4. Remove transfer and exhaust protectors.
5. Remove exhaust pipe and disconnect oxygen sensor
connector.
6. Remove twelve 10 mm adapter case oil pan fixing
screws, adapter case oil pan, and gasket.
NOTE: Oil pan still contains transmission fluid. Place a
large drain container under the oil pan.
Drain the fluid carefully.
7. Disconnect wiring harness from force motor solenoid
and converter clutch solenoid. Pull only on
connectors, not on wiring harness.
8. Remove seven 13 mm screws from adapter case
valve body assembly, then remove transfer plate, two
gaskets, and adapter case valve body.
Installation
1. Inspect electrical 5 pin connector and seal of adapter
case. Replace if necessary.2. Install gasket, transfer plate, and gasket.
3. Install adapter case valve body and seven 13 mm
screws. Tighten the screws to the specified torque.
To r q u e : 2 0 N
m (2.0 kgꞏm/15 lb ft)
4. Connect wiring harness assembly to converter clutch
solenoid and force motor.
5. Install oil pan gasket, oil pan, and twelve 10 mm
screws. Tighten the screws to the specified torque.
To r q u e : 11 N
m (1.1 kgꞏm/96 lb in)
6. Install exhaust pipe and connect oxygen sensor
connector. Tighten the bolts to the specified torque.
Exhaust pipe flange bolt torque:
43 N
m(4.4kgꞏm/32lbft)
7. Install transfer and exhaust protectors. Tighten the
bolts to the specified torque.
To r q u e : 3 7 N
m(3.8kgꞏm/27lbft)
8. Fill transmission through the overfill screw hole of oil
pan, using ATF DEXRON
–III. Refer to Changing
Transmission Fluid in this section.
9. Connect battery ground cable.
Powertrain Control Module (PCM)
Removal
1. Disconnect battery ground cable.
2. Remove front console.
3. Disconnect PCM wiring harness connectors from
PCM.
4. Remove three PCM retaining screws.
5. Remove two brackets from PCM.
826RV006
Installation
1. Install two brackets to PCM.
2. Install three PCM retaining screws.
3. Connect PCM wiring harness connectors to PCM.
4. Install front console.
5. Connect battery ground cable.

7A–44
AUTOMATIC TRANSMISSION (4L30–E)
Speed Sensor (Extension Housing)
Removal
1. Disconnect battery ground cable.
2. Remove front console.
3. Remove selector lever assembly.
4. Disconnect speed sensor harness connector from
speed sensor.
5. Remove one 10 mm screw and speed sensor with
O–ring.
241RW007
Installation
1. Inspect the speed sensor O–ring, and replace it if
necessary.
2. Install speed sensor assembly and 10 mm screw.
To r q u e : 9 N
m (0.9 kgꞏm/78 lb in)
3. Connect speed sensor harness connector to speed
sensor.
4. Install selector lever assembly.
Adjust shift lock cable. Refer to Selector Lever in
this section.
5. Install front console.
6. Connect battery ground cable.
Transmission Oil Temperature Sensor (Adapter Case)
Removal
1. Raise the vehicle and support it on jack stands.
2. Disconnect battery ground cable.
3. Drain fluid.
4. Remove transfer and exhaust protectors.
5. Remove exhaust pipe and disconnect oxygen sensor
connector.
6. Remove twelve 10 mm adapter case oil pan fixing
screws, adapter case oil pan, and gasket.
NOTE: Oil pan still contains transmission fluid. Place a
large drain container under the oil pan, and drain the fluid
carefully.
7. Disconnect wiring harness from force motor solenoid,
converter clutch solenoid, and 5 pin connector of
adapter case. Pull only on connectors, not on wiring
harness.
8. Disconnect ground wire from converter clutch
solenoid wiring harness connector.9. Remove wiring harness assembly (transmission oil
temperature sensor).
243RW002

7A–45 AUTOMATIC TRANSMISSION (4L30–E)
Installation
1. Connect ground wire to converter clutch solenoid
wiring harness connector of the wiring harness
assembly.
2. Install wiring harness assembly to converter clutch
solenoid, force motor, and 5 pin connector of adapter
case.
3. Install oil pan gasket, oil pan, and twelve 10 mm fixing
screws. Tighten the screws to the specified torque.
Torque: 11 N
m (1.1 kgꞏm/96 lb in)4. Install exhaust pipe and connect oxygen sensor
connector. Tighten the bolts to the specified torque.
Exhaust pipe flange bolt torque:
43 N
m(4.4kgꞏm/32lbft)
5. Install transfer and exhaust protectors. Tighten the
bolts to the specified torque.
To r q u e : 3 7 N
m (3.8 kgꞏm/27 lb ft)
6. Fill transmission through the overfill screw hole of oil
pan, using ATF DEXRON
–III.
Refer to Changing Transmission Fluid in this section.
7. Connect battery ground cable.
Front Oil Seal (Converter Housing)
Removal
1. Remove transmission assembly with transfer case
from the vehicle. Refer to Transmission (with Transfer
Case) in this section.
2. Remove torque converter from converter housing.
3. Remove three screws and oil seal ring from converter
housing.
241RW008
Installation
1. Apply clean ATF to the new oil seal ring lip.
Install oil seal ring to converter housing. Tighten the
screws to the specified torque.
To r q u e : 3 N
m (0.3 kgꞏm/26 lb in)
2. Install torque converter to converter housing.
3. Install transmission assembly with transfer case to
the vehicle. Refer to Transmission (with Transfer
Case) in this section.

7A–48
AUTOMATIC TRANSMISSION (4L30–E)
15. Remove servo piston assembly (15), return spring
(16), and servo apply rod (17).
242RW006
16. Rotate transmission to horizontal position, pan side
down.
Remove one 10mm screw, and speed sensor (18)
with “O” ring.
17. Remove seven 8mm extension housing hexagon
socket head screws, extension housing assembly
(19), and gasket.
18. Remove retaining ring (20).
NOTE: Use extra long, needle- nose pliers.19. Remove speed wheel (21).
20. Remove wheel parking lock (with seal ring) (22).
241RS002
21. Rotate transmission to vertical position, converter
housing up.
Loosen the converter housing and oil pump
assembly fixing screws, but do not remove the five
13 mm inner screws if oil pump disassembly is
required.
Remove seven outer screws.
Remove converter housing and oil pump assembly
(23).
22. Remove gasket (24).

7A–56
AUTOMATIC TRANSMISSION (4L30–E)
Ensure free rotation of pump using 5–8840–2273–0
(J–23082–01) oil pump rotation tool.
241RW010
38. Overdrive clutch end play measurement.
1. Fit 5–8840–2271–0 (J–25022) and
5–8840–0618–0 (J–24773–1) turbine shaft puller
on turbine shaft.
2. Position axial play checking tool on converter
housing mating face.
3. Pull turbine shaft upwards with puller until first
resistance is met. (due to weight of overdrive
assembly).
4. Maintain shaft in this position and set indicator to
zero.
5. Pull turbine shaft further upwards with puller.
Read end play shown on indicator.
End play: 0.1mm – 0.8mm (0.004 in – 0.031in)6. Remove axial play checking tool and puller.
NOTE: If end play is not correct, repeat selective washer
selection.
252RW010
39. Inspect extension housing oil seal and replace if
necessary, using 5–8840–2282–0 (J–36797)
extension housing oil seal installer.
Rotate transmission to horizontal position, with
valve body side down.
Inspect parking wheel seal ring. Replace if
necessary.
Install wheel parking lock assembly (35).
40. Install speed wheel (36) and snap ring (37).
NOTE: Use extra long, needle-nose pliers.
41. Install gasket onto extension assembly with a thin
coating of oil.
Install extension housing assembly (38), and align
parking pawl shaft.
Install actuator assembly into extension assembly.
Install seven 8 mm hexagon socket head screws.
To r q u e : 3 2 N
m (3.3 kgꞏm/24 lb ft)
42. Inspect speed sensor O–ring. Replace if necessary.
Install speed sensor assembly (39) and 10 mm
screw.
To r q u e : 9 N
m (0.9 kgꞏm/78 lb in)

7A–87 AUTOMATIC TRANSMISSION (4L30–E)
(38) Seal, O–Ring
(39) Reservoir
(42) Gasket, Extension Case
(43) Extension Assembly
(44) Seal, O–Ring/Speed Sensor
(45) Sensor Assembly, Speed
(46) Screw, Speed Sensor
(50) Seal, Extension Assembly
(52) Screw, Extension/Main Case
(53) Spring, Parking Pawl Lock
(54) Pawl, Parking Lock
(55) Connector, Electrical/Main Case
(56) Actuator Assembly, Parking Lock
(57) Nut, Parking Lock Lever
(58) Link, Manual Valve
(59) Pin, Spring
(60) Lever, Parking Lock and Range Selector
(61) Shaft, Selector
(62) Seal, Selector Shaft
(63) Mode Switch Assembly
(64) Screw and Conical Washer Assembly
(65) Shield, Mode Switch
(67) Pan, Bottom/Adapter Case
(68) Gasket, Bottom Pan/Adapter Case
(69) Harness Assembly, Adapter Case
(70) Screw, Valve Body
(71) Valve Body Assembly, Adapter Case
(72) Gasket, Adapter Valve Body
(73) Plate, Adapter Valve Body/Transfer
(74) Pan, Bottom/Main Case(75) Gasket, Bottom Pan/Main Case
(76) Gasket, Oil Drain or Overfill Screw
(77) Screw, Oil Drain or Overfill
(78) Magnet, Chip Collector
(79) Filter Oil
(80) Harness Assembly, Main Case
(82) Roller and Spring Assembly, Manual Detent
(84) Valve Body Assembly, Main Case
(85) Ball, Check
(86) Gasket, Main V.B./Transfer Plate
(87) Plate, Main V.B./Transfer
(88) Gasket, Transfer/Main Case
(89) Screw, Transfer Plate on V.B.
(90) Screw, Servo Cover
(91) Cover, Servo Piston
(92) Gasket, Cover/Servo Piston
(93) Ring, Retaining Servo Piston
(94) Clip, Servo Piston
(95) Nut, Servo Screw
(96) Screw, Servo Piston
(97) Piston, Servo
(98) Seal, Ring/Servo Piston
(99) Spring, Cushion/Servo Piston
(100) Seat, Cushion Spring
(101) Sleeve, Servo Piston Adjust
(102) Rod, Apply/Servo Piston
(103) Spring, Return/Servo Piston
(104) Gasket, Adapter Case/Transfer Plate
(105) Powertrain Control Module
(106) Servo Piston Assembly
Pump Assembly
241RS019
Legend
(201) Gear, Oil Pump Drive
(202) Gear, Oil Pump Driven
(203) Pin, Boost Valve Sleeve
(204) Sleeve, Boost Valve(205) Valve, Boost
(206) Seat, Spring/Pressure Regulator Valve
(207) Spring, Pressure Regulator Valve
(208) Valve, Pressure Regulator
(209) Pump Assembly, Oil

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–1
SECTION 7A
CONTENTS
AUTOMATIC TRANSMISSION (AW30-40LE)
GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–3
CONSTRUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–3
ELECTRONIC CONTROL COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–4
TRANSMISSION CONTROL MODULE (TCM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–5
CONTROL SYSTEM DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–6
CONTROL AND FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–7
MAJOR INPUT/OUTPUT COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–9
LOCATION OF CLUTCH, BRAKE ONE-WAY CLUTCH AND SOLENOID . . . . . . . . . . . . . . . . . . . . . . . 7A–10
OPERATION OF CLUTCH, BRAKE AND ONE-WAY CLUTCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–11
SPEED CHANGE AND LOCK-UP PATTERN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–11
OVERDRIVE AND LOCK-UP OPERATING CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–12
DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–13
BASIC TROUBLESHOOTING
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–13
SELF-DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–14
DIAGNOSIS WITH TECH2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–17
TECH2 CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–18
TECH2 OPERATING FLOW CHART (START UP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–19
TRANSMISSION DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–21
TCC DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–22
INTERMITTENT CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–23
IDENTIFICATION OF TRANSMISSION CONTROL MODULE (TCM) . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–24
DIAGNOSTIC TROUBLE CODES (DTC) CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–25
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–52
CONNECTOR LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–54
TROUBLESHOOTING CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–56
MANUAL SHIFTING TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–62
STALL TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–63
TIME LAG TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–64
HYDRAULIC TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–65
ROAD TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–66
SHIFT POINT CHART AND LOCK-UP POINT CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–69
TCM VOLTAGE CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–71
TCM STANDARD VOLTAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–72
ON-VEHICLE SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–75
TRANSIMISSION FLUID LEVEL AND CONDITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–75
ATF REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–75
NEUTRAL START SWITCH INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–76
BRAKE SIGNAL INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–77
VEHICLE SPEED SENSOR INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–77
INPUT AND OUTPUT REVOLUTION SENSOR INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–77
PATTERN SELECT SWITCH INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–78
OVERDRIVE OFF SWITCH INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–78
SOLENOID INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–78
THROTTLE POSITION SENSOR INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–79
ATF TEMPERATURE SENSOR INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–79
SELECTOR LEVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–80
TRANSMISSION CONTROL MODULE (TCM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–81
SHIFT SOLENOID AND LOCK-UP SOLENOID. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A–83

AUTOMATIC TRANSMISSION (AW30-40LE) 7A–7
CONTROL AND FUNCTIONS
Item Description
Shift and lock-up control • In D range, speed change point and Lock-up point can be changed by
setting pattern selection switch to "POWER", "NORMAL" or "WINTER"
mode.
• Gear shift position in the conditions made up of transmission shift positions
(D.2.L) combined with pattern selection switch (POWER, NORMAL, and
WINTER) can be controlled in accordance with vehicle speed and the
opening of throttle valve.
Overdrive cut control • If O/D OFF switch is set on in D range (O/D OFF lamp ON), gear shift to O/
D is not effected.
• Overdrive is released at O/D OFF switch on and high transmission oil
temperature (More than 130
C).
However, to prevent engine over revolution
•4
3 shifting at vehicle speed is less than 118 km/h.
•3
4 shifting at vehicle speed is more than 131 km/h.
Lock-up cut control • In D range, 3rd or O/D lock-up is conducted in "POWER" or "NORMAL"
mode.
• In 2, L range, lock-up is off in the whole area.
• Lock-up timing is controlled to reduce gear shift shock using kind of gear
shift (shift up, etc.) lock-up status at the time of gear shift judgement, gear
step and throttle opening after gear shift.
• Lock-up is released at brake on or high transmission oil temperature (More
than 130
C).
• Lock-up is prohibited when idling is defected by throttle position sensor.
Driving mode select control • The TCM selects a suitable driving mode from the nine kinds for the variety
driving condition.
i) Economy mode ii) Power mode iii) Winter mode iv) HOT1 mode v) HOT2
mode vi) L4 mode vii) Slope mode (Up slope 1, Up slope 2 and Down
slope mode)
• The priority of driving mode:
Economy < Power < Slope < L4 < Winter < HOT1 < HOT2
Squat control • When the TCM detects D signal on, the TCM controls 1–3–1 shift by
setting a timer, in order to improve the shift feel at N
D.
Line pressure control • The TCM output current which corresponds to throttle oil pressure to
pressure control solenoid based on throttle opening.
Indicate oil temperature warning
function• If the transmission oil temperature sensor senses that transmission oil
temperature is greater than 146
C, the TCM turn on A/T OIL TEMP
warning lamp. (The warning lamp is turned off, if oil temperature is less
than 126
C.)
L4 mode control • The TCM judges whether the transfer is engaged in high or low based on
the ratio rpm data from output speed sensor in the transmission and the
rpm data from speed meter sensor to select the shift map.
Up and down hill control • The TCM judges up and down hill, and change shift pattern based on
throttle opening and acceleration.
Correct oil temperature control • If the temperature exceeds a predetermined value, the TCM selects the
high oil temperature shift point for downshifting, thus preventing the oil
temperature from rising. (More than 130
C, D range)

7A–8 AUTOMATIC TRANSMISSION (AW30-40LE)
Winter mode control • The TCM controls the vehicle start smoothly on low frictional road like
snow road by executing this control.
Activate condition:
1. Excluding "2", "L" range
2. Vehicle speed is less than 11 km/h
3. Transmission oil temperature is less than 115
C
4. Throttle opening is less than 8%
5. Excluding winter mode
Cancel condition:
1. When winter mode switch is pushed again
2. When either "2" or "L" is detected
3. Ignition switch "OFF"
4. Vehicle speed is more than 34 km/h for 1 second or mode continuously
5. Transmission oil temperature is more than 130
C
Fail-safe function • When trouble occurs to vehicle sensor and each solenoid, TCM
automatically exer ts fail-safe control not to spoil driveability.
• This control is exer ted when sensor or actuator is in trouble, while TCM
works normally.
Diagnosis function • If there is an abnormality in vehicle sensors, each solenoid (S1-S3, STH),
or throttle position sensor, "CHECK TRANS" lamp is actuated to warn the
drive. But when the abnormality items have been restored to normal, the
light does not blink.
• Faulty parts are memorized in TCM. If self-diagnosis star t signal is
inputted, "CHECK TRANS" lamp is blinked and results of diagnosis are
indicated. A history of faults remains recorded even when IGN switch is off.
TECH 2 • Output of control data in the TCM
• Actuator (Solenoid) operation check
• Erasure of trouble code