1998 OPEL FRONTERA Workshop Manual

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Page 2241 of 6000

OPEL FRONTERA 1998 Workshop Manual 7A–87 AUTOMATIC TRANSMISSION (4L30–E)
Valve Body Assemblies
244RS009
Legend
(301) Body, Valve Main Case
(302) Pin, Spring
(303) Solenoid Assembly, ON/OFF N.C.
(304) Valve, 1–2 and 3–4 Shift

Page 2242 of 6000

OPEL FRONTERA 1998 Workshop Manual 7A–88
AUTOMATIC TRANSMISSION (4L30–E)
243RW003
Legend
(401) Body, Valve/Adapter Case
(402) Screw, Solenoid Force Motor
(403) Retainer, Force Motor
(404) Solenoid, Force Motor
(405) Plug, 3–4 Acc

Page 2243 of 6000

OPEL FRONTERA 1998 Workshop Manual 7A–89 AUTOMATIC TRANSMISSION (4L30–E)
Overdrive Internal Components
252RW003
Legend
(501) Retainer, 4th Clutch
(502) Plate, 4th Clutch (Steel)
(503) Plate Assembly, 4th Clutch (Lined)
(504) Retain

Page 2244 of 6000

OPEL FRONTERA 1998 Workshop Manual 7A–90
AUTOMATIC TRANSMISSION (4L30–E)
Internal Components
247RW002
Legend
(608) Seal, Reverse Clutch Piston (Inner)
(609) Seal, Reverse Clutch Piston (Outer)
(610) Piston, Reverse Clutch
(611) Spr

Page 2245 of 6000

OPEL FRONTERA 1998 Workshop Manual 7A–91 AUTOMATIC TRANSMISSION (4L30–E)
(646) Gear Assembly, Input Sun
(647) Race Assembly, Sprag
(648) Ring, Retaining/Sprag
(649) Ring, Retaining
(650) Cage Assembly, Sprag
(651) Bearing, Output S

Page 2246 of 6000

OPEL FRONTERA 1998 Workshop Manual TRANSMISSION CONTROL SYSTEM (4L30–E)7A1–1
TRANSMISSION
TRANSMISSION CONTROL SYSTEM (4L30–E)
CONTENTS
Service Precaution 7A1–2. . . . . . . . . . . . . . . . . . . . . .
General Description 7A

TRANSMISSION CONTROL SYSTEM (4L30–E)7A1–1
TRANSMISSION
TRANSMISSION CONTROL SYSTEM (4L30–E)
CONTENTS
Service Precaution 7A1–2. . . . . . . . . . . . . . . . . . . . . .
General Description 7A1–2. . . . . . . . . . . . . . . . . . . . .
Shift Control 7A1–6. . . . . . . . . . . . . . . . . . . . . . . . . .
Band Apply Control 7A1–6. . . . . . . . . . . . . . . . . . . .
Torque Converter Clutch Control 7A1–6. . . . . . . . .
Line Pressure Control 7A1–6. . . . . . . . . . . . . . . . . .
On–Board Diagnostic System 7A1–6. . . . . . . . . . .
Fail Safe Mechanism 7A1–6. . . . . . . . . . . . . . . . . . .
Torque Management Control 7A1–6. . . . . . . . . . . .
ATF Warning Control 7A1–6. . . . . . . . . . . . . . . . . . .
ABS Control (If equipped) 7A1–6. . . . . . . . . . . . . .
Winter Drive Mode 7A1–9. . . . . . . . . . . . . . . . . . . . .
Backup Mode 7A1–9. . . . . . . . . . . . . . . . . . . . . . . . .
Functions of Input / Output Components 7A1–10. .
Diagnosis 7A1–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Trans Indicator 7A1–11. . . . . . . . . . . . . . . . . .
Diagnostic Check 7A1–11. . . . . . . . . . . . . . . . . . . . . .
“Check Trans” Check 7A1–12. . . . . . . . . . . . . . . . . .
Tech2 OBD II Connection 7A1–13. . . . . . . . . . . . . . .
OBD II Diagnostic Management System 7A1–18. .
16 – Terminal Data Link Connector (DLC) 7A1–19.
Malfunction Indicator Lamp (MIL) 7A1–20. . . . . . . .
Types Of Diagnostic Trouble Codes
(DTCs) 7A1–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clear DTC 7A1–20. . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC Check 7A1–21. . . . . . . . . . . . . . . . . . . . . . . . . . .
PCM Precaution 7A1–21. . . . . . . . . . . . . . . . . . . . . . .
Information On PCM 7A1–21. . . . . . . . . . . . . . . . . . .
Intermittent Conditions 7A1–21. . . . . . . . . . . . . . . . .
Transmission And PCM Identification 7A1–22. . . . .
Diagnostic Trouble Code (DTC)
Identification 7A1–24. . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0218 Transmission Fluid Over
Temperature 7A1–25. . . . . . . . . . . . . . . . . . . . . . . . . . . Conditions For Setting The DTC 7A1–25. . . . . . . . .
Action Taken When The DTC Sets 7A1–25. . . . . . .
Conditions For Clearing The DTC 7A1–25. . . . . . . .
Diagnostic Aids 7A1–25. . . . . . . . . . . . . . . . . . . . . . . .
Test Description 7A1–25. . . . . . . . . . . . . . . . . . . . . . .
DTC P0560 System Voltage Malfunction 7A1–27. . .
DTC P0705 Transmission Range Switch
(Mode Switch) Illegal Position 7A1–30. . . . . . . . . . . .
DTC P0706 Transmission Range Switch
(Mode Switch) Performance 7A1–33. . . . . . . . . . . . . .
DTC P0712 Transmission Fluid Temperature
(TFT) Sensor Circuit Low Input 7A1–36. . . . . . . . . . .
DTC P0713 Transmission Fluid Temperature
(TFT) Sensor Circuit High Input 7A1–39. . . . . . . . . . .
DTC P0719 TCC Brake Switch Circuit High
(Stuck On) 7A1–42. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0722 Transmission Output Speed
Sensor (OSS) Low Input 7A1–45. . . . . . . . . . . . . . . . .
DTC P0723 Transmission Output Speed
Sensor (OSS) Intermittent 7A1–48. . . . . . . . . . . . . . .
DTC P0730 Transmission Incorrect
Gear Ratio 7A1–51. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0748 Pressure Control Solenoid
(PCS) (Force Motor) Circuit Electrical 7A1–54. . . . .
DTC P0753 Shift Solenoid A Electrical 7A1–56. . . . .
DTC P0758 Shift Solenoid B Electrical 7A1–59. . . . .
DTC P1790 ROM Transmission Side Bad
Check Sum 7A1–63. . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1792 EEPROM Transmission Side
Bad Check Sum 7A1–64. . . . . . . . . . . . . . . . . . . . . . . .
DTC P1835 Kickdown Switch Always On 7A1–65. . .
DTC P1850 Brake Band Apply Solenoid
Malfunction 7A1–67. . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1860 TCC Solenoid Electrical 7A1–71. . . . . . .

Page 2247 of 6000

OPEL FRONTERA 1998 Workshop Manual 7A1–2
TRANSMISSION CONTROL SYSTEM (4L30–E)
Service Precaution
WARNING: IF SO EQUIPPED WITH A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS),
REFER TO THE SRS COMPONENT AND WIRING
LOCATION VIEW I

7A1–2
TRANSMISSION CONTROL SYSTEM (4L30–E)
Service Precaution
WARNING: IF SO EQUIPPED WITH A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS),
REFER TO THE SRS COMPONENT AND WIRING
LOCATION VIEW IN ORDER TO DETERMINE
WHETHER YOU ARE PERFORMING SERVICE ON OR
NEAR THE SRS COMPONENTS OR THE SRS
WIRING. WHEN YOU ARE PERFORMING SERVICE
ON OR NEAR THE SRS COMPONENTS OR THE SRS
WIRING, REFER TO THE SRS SERVICE
INFORMATION. FAILURE TO FOLLOW WARNINGS
COULD RESULT IN POSSIBLE AIR BAG
DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.
General Description
The 4L30–E is a 4–speed fully automatic transmission. It
uses a microcomputer as a control unit to judge running
conditions including throttle opening rate and vehicle
speed, then it sets the shifting point in the optimum timing
so that best driving performance can be achieved.
In addition, the built–in shift mode select function can
select three shift modes according to the driver’s
preference:
Normal mode –Normal shift pattern.
Winter mode –Starts in 3rd gear to reduce slippage on
ice or snow.
Power mode has a delayed upshift for when more
powerful acceleration is required.
Also, the built–in fail safe function (“backup mode”)
assures driving performance even if the vehicle speed
sensor, throttle signal or any solenoid fails.
Further, the self–diagnostic function conducts diagnosis
in a short time when the control system fails, thus
improving serviceability.
The major features of 4L30–E are as follows:
A compact structure consisting of 2 sets of planetary
gears and flat torque converter.
Electronic control selects the optimum shift mode
according to the driving conditions.
Electronic control maintains the optimum hydraulic
pressure for clutch, band brake as well as
transmission so that shift feeling is improved.
Two sets of planetary gears reduce friction of power
train.
Also, a lockup mechanism in the torque converter
reduces fuel consumption.
Wide gear ratio and high torque rate of torque
converter provide excellent starting performance.

Page 2248 of 6000

OPEL FRONTERA 1998 Workshop Manual TRANSMISSION CONTROL SYSTEM (4L30–E)7A1–3
Electronic Control Diagram
C07RW052

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