Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 422

7A–101

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) Retainer And Ball Assembly, Check Valve
(505) Seal, O–Ring/Turbine Shaft
(506) Shaft, Turbine
(508) Ring, Oil Seal/Turbine Shaft
(510) Housing, Overrun Clutch
(513) Piston, Overrun Clutch
(514) Spring, Overrun Clutch Release
(515) Retainer, Release Spring/Overrun Clutch
(516) Roller Assembly, Overdrive Clutch
(517) Cam, Overdrive Roller Clutch
(518) Ring, Snap/Overrun Clutch Hub
(519) Gear, Overdrive Sun

(520) Plate, Waved/Overrun Clutch
(521) Plate, Overrun Clutch (Steel)
(522) Plate Assembly, Overrun Clutch (Lined)
(523) Plate, Backing/Overrun Clutch
(524) Ring, Snap/Overrun Clutch Housing
(525) Carrier Assembly, Overdrive Complete
(526) Ring, Snap/Turbine Shaft/Carrier
(527) Bearing Assembly, Thrust
(528) Gear, Overdrive Internal
(529) Washer, Thrust/Internal Gear/Support
(530) Ring, Snap/Adapter/4th Clutch Spring
(531) Retainer and spring assembly, 4th clutch
(532) Piston, 4th Clutch
(533) Seal, 4th Clutch Piston (Inner)
(534) Seal, 4th Clutch Piston (outer)

7A–102

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) Spring, Piston Clutch

(612) Seat, Spring/Reverse Clutch
(613) Ring, Retaining
(614) Plate, Waved/Reverse Clutch
(615) Plate, Reverse Clutch (Steel)
(616) Plate Assembly, Reverse Clutch (Lined)
(617) Plate, Reverse Clutch Pressure/Selective
(618) Drum Assembly, 2nd Clutch
(620) Seal, 2nd Clutch Piston (Inner)
(621) Seal, 2nd Clutch Piston (Outer)
(622) Piston, 2nd Clutch
(623) Seat, Spring/2nd Clutch
(625) Plate, Waved/2nd Clutch
(626) Plate, 2nd Clutch (Steel)

(627) Plate Assembly, 2nd Clutch (Lined)
(628) Spacer, 2nd Clutch
(629) Ring, Retaining
(630) Gear, Ring
(631) Washer, Thrust/2nd Clutch/3rd Clutch
(632) Thrust Washer, Clutch Hub
(634) Drum Assembly, 3rd Clutch
(635) Seal, 3rd clutch piston (Inner)
(636) Washer, Retaining
(637) Seal, 3rd Clutch Piston (Outer)
(638) Piston 3rd Clutch
(639) Seat, Spring/3rd Clutch
(640) Ring, Retaining
(641) Plate, Spring Cushion/3rd Clutch
(642) Plate, 3rd Clutch (Steel)
(643) Plate Assembly, 3rd Clutch (Lined)
(644) Washer, Thrust/Input Sun
(645) Bearing, Input Shaft/Gear Assembly

7A–103

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 Shaft/Input Sun
(652) Washer, Output Shaft/Input Sun
(653) Carrier Assembly, Planetary

(658) Gear, Reaction Sun
(659) Drum, Reaction Sun
(664) Band Assembly, Brake
(667) Seal, Ring/Wheel Parking Lock
(668) Wheel, Parking Lock
(672) Wheel, Speed
(673) Ring, Retaining
(675) Bearing, Thrust Assembly

Center Support Assembly

242RY002

Legend

(701) Center Support
(702) Retainer Plate
(703) Plug, Lockout

(704) Spring, Lockout
(705) Valve, Overrun Lockout
(706) Valve, Reverse Lockout Control

TRANSMISSION CONTROL SYSTEM (4L30–E)

7A1–1

AXIOM

TRANSMISSION

TRANSMISSION CONTROL SYSTEM (4L30–E)

CONTENTS

Service Precaution

7A1–2

. . . . . . . . . . . . . . . . . . . . . . 

General Description

7A1–2

. . . . . . . . . . . . . . . . . . . . . 

Electronic Control Diagram

7A1–3

. . . . . . . . . . . . . 

Powertrain Control Module (PCM)

7A1–4

. . . . . . . 

Control System Diagram

7A1–5

. . . . . . . . . . . . . . . 

Shift Control

7A1–6

. . . . . . . . . . . . . . . . . . . . . . . . . . 

Band Apply Control

7A1–6

. . . . . . . . . . . . . . . . . . . . 

Torque Converter Clutch Control
 (Electronically Controlled Capacity
 Clutch = ECCC)

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

. . . . . . . . . . . . . . . . . . . 

Reverse Lock Out Control

7A1–6

. . . . . . . . . . . . . . 

Downhill Control

7A1–6

. . . . . . . . . . . . . . . . . . . . . . . 

Uphill Control

7A1–6

. . . . . . . . . . . . . . . . . . . . . . . . . 

Shift Mode Control

7A1–7

. . . . . . . . . . . . . . . . . . . . . 

Gear Shift Control

7A1–8

. . . . . . . . . . . . . . . . . . . . . 

Winter Drive Mode

7A1–9

. . . . . . . . . . . . . . . . . . . . . 

Backup Mode

7A1–9

. . . . . . . . . . . . . . . . . . . . . . . . . 

Functions of Input / Output Components

7A1–10

. . 

Diagnosis

7A1–11

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

Electronic Diagnosis

7A1–11

. . . . . . . . . . . . . . . . . . . 

Check Trans Indicator

7A1–11

. . . . . . . . . . . . . . . . . . 

Diagnostic Check

7A1–11

. . . . . . . . . . . . . . . . . . . . . . 

“Check Trans” Check

7A1–12

. . . . . . . . . . . . . . . . . . 

Tech 2 OBD II Connection

7A1–13

. . . . . . . . . . . . . . 

Transmission Data

7A1–18

. . . . . . . . . . . . . . . . . . . . . 

OBD II Diagnostic Management System

7A1–19

. . 

16 – Terminal Data Link Connector (DLC)

7A1–20

. 

Malfunction Indicator Lamp (MIL)

7A1–21

. . . . . . . . 

DTC Types

7A1–21

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

Clear DTC

7A1–22

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

DTC Check

7A1–22

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

PCM Precaution

7A1–22

. . . . . . . . . . . . . . . . . . . . . . . 

Information On PCM

7A1–22

. . . . . . . . . . . . . . . . . . . 

Intermittent Conditions

7A1–23

. . . . . . . . . . . . . . . . . 

Transmission And PCM Identification

7A1–23

. . . . . 

Diagnostic Trouble Code (DTC)
 Identification

7A1–24

. . . . . . . . . . . . . . . . . . . . . . . . . 

DTC P0218 Transmission Fluid Over
 Temperature

7A1–25

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

DTC P0705 Transmission Range Switch
 (Mode Switch) Illegal Position

7A1–27

. . . . . . . . . . . . 

DTC P0706 Transmission Range Switch
 (Mode Switch) Performance

7A1–30

. . . . . . . . . . . . . . 

DTC P0711 Transmission Fluid Temperature
 (TFT) Sensor 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 Brake Switch Circuit Low
 (Stuck On)

7A1–42

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

DTC P0722 Automatic Transmission Output
 Speed Sensor (OSS) Low Input

7A1–45

. . . . . . . . . . 

DTC P0723 Automatic Transmission Output
 Speed Sensor (OSS) Intermittent

7A1–48

. . . . . . . . . 

DTC P0724 Brake Switch Circuit High
 (Stuck Off)

7A1–51

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

DTC P0730 Gear Error Without Input Speed

7A1–53

DTC P0742 Torque Converter Clutch (TCC)
 System Stuck On

7A1–56

. . . . . . . . . . . . . . . . . . . . . . . 

DTC P0748 Pressure Control Solenoid (PCS)
 (Force Motor) Circuit Electrical

7A1–58

. . . . . . . . . . . 

DTC P0751 Shift Solenoid A Performance
 (Stuck Off)

7A1–60

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

DTC P0752 Shift Solenoid A Performance
 (Stuck On)

7A1–62

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

DTC P0753 Shift Solenoid A Electrical

7A1–64

. . . . . 

DTC P0756 Shift Solenoid B Performance
 (Stuck Off)

7A1–67

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

DTC P0757 Shift Solenoid B Performance
 (Stuck On)

7A1–69

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

DTC P0758 Shift Solenoid B Electrical

7A1–71

. . . . . 

DTC P1850 Brake Band Apply Solenoid
 Malfunction

7A1–75

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 

DTC P1860 TCC PWM Solenoid Electrical

7A1–79

. 

DTC P1870 Transmission Component Slipping
 (TCC Stuck Off)

7A1–82

. . . . . . . . . . . . . . . . . . . . . . . . 

Circuit Diagram

7A1–84

. . . . . . . . . . . . . . . . . . . . . . . . . 

Parts Location

7A1–86

. . . . . . . . . . . . . . . . . . . . . . . . . . 

Harness Connector Faces

7A1–87

. . . . . . . . . . . . . . . . 

Transmission Fluid Temperature (TFT) Sensor
 Specifications

7A1–89

. . . . . . . . . . . . . . . . . . . . . . . . . . 

SECTION