Transmission Control System (4L30-E) - Isuzu Trooper 1999 Workshop Manual

TROOPER
TRANSMISSION CONTROL SYSTEM (4L30–E)
Service Precaution . . . . . . . . . . . . . . . . . . . . . .
General Description . . . . . . . . . . . . . . . . . . . . .
Electronic Control Diagram
Powertrain Control Module (PCM)
Control System Diagram
Shift Control . . . . . . . . . . . . . . . . . . . . . . . . . .
Band Apply Control . . . . . . . . . . . . . . . . . . . .
Torque Converter Clutch Control
Line Pressure Control . . . . . . . . . . . . . . . . . .
On–Board Diagnostic System
Fail Safe Mechanism . . . . . . . . . . . . . . . . . . .
Torque Management Control
ATF Warning Control . . . . . . . . . . . . . . . . . . .
ABS Control . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift Mode Control . . . . . . . . . . . . . . . . . . . . .
Gear Shift Control . . . . . . . . . . . . . . . . . . . . .
Winter Drive Mode . . . . . . . . . . . . . . . . . . . . .
Backup Mode . . . . . . . . . . . . . . . . . . . . . . . . .
Functions of Input / Output Components
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronic Diagnosis . . . . . . . . . . . . . . . . . . .
Check Trans Indicator . . . . . . . . . . . . . . . . . .
Diagnostic Check . . . . . . . . . . . . . . . . . . . . . .
"Check Trans" Check . . . . . . . . . . . . . . . . . .
Tech2 OBD II Connection
F0: Transmission Data
F1: PC Solenoid Data . . . . . . . . . . . . . . . . . .
OBD II Diagnostic Management System
16 – Terminal Data Link Connector (DLC)
Malfunction Indicator Lamp (MIL)
Types Of Diagnostic Trouble Codes (DTCs)
Clear DTC . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC Check . . . . . . . . . . . . . . . . . . . . . . . . . . .
PCM Precaution . . . . . . . . . . . . . . . . . . . . . . .
Information On PCM . . . . . . . . . . . . . . . . . . .
Intermittent Conditions
Transmission And PCM Identification
Isuzu Trooper . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Trouble Code (DTC)
Identification . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0218 Transmission Fluid Over
Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . .
TRANSMISSION CONTROL SYSTEM (4L30–E)
TRANSMISSION
CONTENTS
7A1–2
7A1–2
. . . . . . . . . . . . . 7A1–3
. . . . . . . 7A1–4
. . . . . . . . . . . . . . . 7A1–5
7A1–6
7A1–6
. . . . . . . . . 7A1–6
7A1–6
. . . . . . . . . . . 7A1–6
7A1–6
. . . . . . . . . . . . 7A1–6
7A1–6
7A1–6
7A1–7
7A1–8
7A1–9
7A1–9
. . 7A1–10
7A1–11
7A1–11
7A1–11
7A1–11
7A1–12
. . . . . . . . . . . . . . . 7A1–13
. . . . . . . . . . . . . . . . . 7A1–17
7A1–18
. . 7A1–19
. 7A1–20
. . . . . . . . 7A1–21
7A1–21
7A1–21
7A1–22
7A1–22
7A1–22
. . . . . . . . . . . . . . . . . 7A1–22
. . . . . 7A1–23
7A1–23
7A1–24
7A1–25
DTC P0560 System Voltage Malfunction
DTC P0705 Transmission Range Switch
(Mode Switch) Illegal Position
DTC P0706 Transmission Range Switch
(Mode Switch) Performance
DTC P0711 Transmission Fluid Temperature
(TFT) Sensor Circuit Range/Performance
DTC P0712 Transmission Fluid Temperature
(TFT) Sensor Circuit Low Input
DTC P0713 Transmission Fluid Temperature
(TFT) Sensor Circuit High Input
DTC P0719 TCC Brake Switch Circuit High
(Stuck On) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0722 Transmission Output Speed
Sensor (OSS) Low Input
DTC P0723 Transmission Output Speed
Sensor (OSS) Intermittent
DTC P0724 TCC Brake Switch Circuit
Low (Stuck Off) . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0730 Transmission Incorrect Gear
Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0742 Torque Converter Clutch (TCC)
Circuit Stuck On . . . . . . . . . . . . . . . . . . . . . . . .
DTC P0748 Pressure Control Solenoid (PCS)
(Force Motor) Circuit Electrical
DTC P0751 Shift Solenoid A Performance
Without Input Speed . . . . . . . . . . . . . . . . . . . .
DTC P0753 Shift Solenoid A Electrical
DTC P0756 Shift Solenoid B Performance
Without Input Speed . . . . . . . . . . . . . . . . . . . .
DTC P0758 Shift Solenoid B Electrical
DTC P1790 ROM Transmission Side Bad
Check Sum . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1792 EEPROM Transmission Side Bad
Check Sum . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1835 Kickdown Switch Always On
DTC P1850 Brake Band Apply Solenoid
Malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DTC P1860 TCC Solenoid Electrical
DTC P1870 Transmission Component
Slipping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION
7A1–1
. . . 7A1–27
. . . . . . . . . . . . 7A1–30
. . . . . . . . . . . . . . 7A1–33
. . 7A1–36
. . . . . . . . . . . 7A1–39
. . . . . . . . . . . 7A1–42
7A1–45
. . . . . . . . . . . . . . . . . 7A1–48
. . . . . . . . . . . . . . . 7A1–51
7A1–54
7A1–56
7A1–59
. . . . . . . . . . . 7A1–61
7A1–63
. . . . . 7A1–65
7A1–68
. . . . . 7A1–70
7A1–74
7A1–75
. . . 7A1–76
7A1–78
. . . . . . . 7A1–82
7A1–85