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Component T/M Inputs – Component Transmission Inputs Monitor Introduction

Component Transmission Inputs Monitor Introduction

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Component Transmission Inputs Monitor Summary

The shift pattern and lock–up pattern are stored in the ECM.
The sensors and switches send signals of vehicle running conditions to the ECM.
The ECM determines whether the shift and lock–up operations should be turned on or off according to input
signals.
The ECM sends signals to each solenoid for shift and lock–up operation.
The input signals of sensors and switches are listed below:
 Shift range signal by the shift positions switch
 Transmission fluid temperature sensor signal by the transmission fluid temperature sensor
 Vehicle speed signal by the speed sensor
 Brake signal by the brake pedal depression (stop light switch is turned on)
 Throttle valve opening angle signal by the throttle position sensor
 Signal to adjust the transmission shift and lock up points by the pattern select switch
 Engine coolant temperature signal by the engine coolant temperature sensor
 Overdrive main switch ON/OFF switch
etc.

ECM Sensors and Switches

Shift Range (Switch)
Engine Control Transmission
Park/Neutral position switch
Control Input
Transfer neutral position switch
Signal
Transfer L4 position switch
Transmission Fluid Temp. Sensor

Transmission fluid temperature sensor
Transmission Speed Sensor
Control
Input/Turbine speed sensor

Output speed sensor

Direct clutch speed sensor
Transmission
Rear wheel sensor
Control Output Brake Switch
Signal
Stop light switch
Transmission (Transaxle / Transfer)

Shift Solenoid
Valve

1996–2003 ADDITION OF OBD (OTH021U)

Author: Date: 461

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Component T/M Inputs – Component Transmission Inputs Monitor Introduction

Components of Transmission Input Chart:

Extended Previous
Section Document Contents See Page
Code Code
Transmission Range Sensor Circuit
Malfunction (PRNDL Input) Monitor P0705
Description P1780 Ct–2
Park/Neutral Switch Input Circuit
P0850
Monitor Description
Shift Range
1–2 Shift Monitor Description P0781 – Ct–26
Driveline Disconnect Switch Input Cir-
P0818 P1783 Ct–29
cuit Monitor Description
T/F L4 Range Position Switch Perfor-
P1782 P1782 Ct–32
mance Monitor Description
P0710
Transmission Fluid Temp. Sensor ”A”
P0712 P0710 Ct–38
Ct 38
Circuit Monitor Description
P0713
Transmission Fluid Temp. Sensor ”A”
Component Transmis- Transmission Temp. Sensor P0711 P0711 Ct–47
Performance Monitor Description
sion
i IInput
P2740
Transmission Fluid Temp. Sensor ”B”
P2742 – Ct–60
Ct 60
Circuit Monitor Description
P2743

In ut/Turbine Speed
Input/Turbine S eed Sensor Circuit P0715
P0717 Ct 62
Ct–62
No Signal Monitor Description P1725
Output Speed Sensor Monitor De-
P0722 P1700 Ct–76
scription
Speed Sensor Intermediate Shaft Speed
S eed Sensor ”A”
A P1705
P0793 Ct 85
Ct–85
Monitor Description P1730
Rear Wheel Sensor Malfunction
(Rear Speed Sensor) Monitor De- – P1715 Ct–94
scription
Brake Switch ”B” Circuit High Monitor
Brake Switch P0724 P1520 Ct–97
Description

Author: Date: 462