Scribd
Upload
428 views3 pages

Shift Control Mechanism 1. General: Chassis - A340E, A340F, A343E and A343F Automatic Transmissions CH-30

The document describes the shift control mechanism for several automatic transmission models. It contains 3 sections: 1) A general description of the gate-type shift lever system and its main components. 2) Details of the shift lock system, which prevents shifting out of park without the brake pressed and key removed without being in park. 3) An overview of how the shift lock solenoid and key interlock solenoid are used to implement the shift lock function based on input from various switches.

Uploaded by

Maxi Sardi
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
428 views3 pages

Shift Control Mechanism 1. General: Chassis - A340E, A340F, A343E and A343F Automatic Transmissions CH-30

The document describes the shift control mechanism for several automatic transmission models. It contains 3 sections: 1) A general description of the gate-type shift lever system and its main components. 2) Details of the shift lock system, which prevents shifting out of park without the brake pressed and key removed without being in park. 3) An overview of how the shift lock solenoid and key interlock solenoid are used to implement the shift lock function based on input from various switches.

Uploaded by

Maxi Sardi
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 3

CH-30 CHASSIS — A340E, A340F, A343E AND A343F AUTOMATIC TRANSMISSIONS

JSHIFT CONTROL MECHANISM


1. General
D A gate type shift lever is used. With the gate type, the shift lever button and the overdrive switch of the
straight type shift lever have been discontinued. Similar functions are achieved through a single-shift
operation (fore-aft and side-to-side).
D This shift lever mainly consists of a shift lock ECU, a shift lever plate, and a shift lever sub-assembly.
D The shift lock ECU has a built-in transmission control switch, P detection switch, and shift lock solenoid.
D The shift lock system consists of a key interlock device and a shift lock mechanism.

Shift Pattern

Shift Lock ECU


271CH23

Shift Lever Assembly

LHD Model

NM
00M4E
CHASSIS — A340E, A340F, A343E AND A343F AUTOMATIC TRANSMISSIONS CH-31

2. Shift Lock System

General

D The key interlock device prevents the key from being pulled out after the ignition switch is turned OFF,
unless the shift lever is moved to the P position. Thus, the driver is urged to park the vehicle in the P
position.
D The shift lock mechanism prevents the shift lever from being shifted to a position other than the P
position, unless the ignition switch is ON and the brake pedal is pressed. This prevents the vehicle from
starting off suddenly against the wish of the driver.

Layout of Main Components

Ignition Switch
· Key Interlock Solenoid
Stop Light Switch CH

Shift Lock Release Button

Shift Lock ECU


· P Detection Switch
· Shift Lock Solenoid

271CH24

LHD Model

NM
00M4E
CH-32 CHASSIS — A340E, A340F, A343E AND A343F AUTOMATIC TRANSMISSIONS

Key Interlock Solenoid

The activation of the key interlock solenoid that is mounted on the upper column bracket moves the lock
pin to restrict the movement of the key cylinder. Therefore, if the shift lever is shifted to any position other
than “P”, the ignition key cannot be moved from “ACC” to the “LOCK” position.

Key Interlock Solenoid

271CH25

System Operation

D The shift lock ECU uses the P detection switch to detect the shift lever position, and receives output
signals from the stop light switch and ignition switch signals. Upon receiving these signals, the shift lock
ECU turns ON the key interlock solenoid and the shift lock solenoid in order to release the key interlock
and shift lock.
D A shift lock release button, which manually releases the shift lock mechanism, is used.

" System Diagram A

Shift Lock ECU

Key Interlock
Stop Light Switch Solenoid
Shift Lock
Circuit
Ignition Switch
Shift Lock
Solenoid
P Detection
Switch

232CH94

NM
00M4E

You might also like