Clarion RS10 Bedienerhandbuch PDF herunterladen (Seite 10)

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UNGO – Application Notes / Terms

Voltage sensing is not recommended in areas

that experience extreme cold temperatures. The

resistance in the vehicles wiring increases which

can cause intermittent remote start reliability.

454T: Alternator RPM Monitor

The 454T Alternator RPM Monitor is for use with

remote engine starts as an alternative to direct

connection to the vehicle’s tachometer or fuel

injector wire. It detects electrical spikes in the

vehicles electrical system and converts them into

an output that simulates a tachometer.

Remote Start Terms and Definitions

Immobilizer (a.k.a.: Transponder)

The Immobilizer uses an antenna ring around the

ignition cylinder to energize a small transponder

chip hidden in the ignition key. When the igni-

tion is turned on, the chip is energized and the

antenna rings sends the code to the Immobilizer

control unit. The vehicle will only start if the code

matches the one programmed into the vehicle.

Passkey/VATS

The Passkey/VATS system consists of four parts:

the Passkey cylinder, the ignition switch, the

instrument cluster panel (IPC), and the power

train control module (PCM). The system requires

that the key cylinder be mechanically turned using

a key. When the key cylinder is properly turned,

it generates a resistance code (R-Code), which is

sent to the IPC. The vehicle will only start if the

R-Codes match the key and key cylinder.

Passlock 2

The Passlock 2 system must see the correct

resistance code at the correct time. When the

ignition switch is turned to the crank position, the

“Bulb Check” wire is switched to ground. This

starts a time window during which the instrument

cluster panel (IPC) analyzes the resistance code

(R-Code). If the R-Code is valid and is received

in the proper window of time, the IPC sends a

code via data bus to the PCM to enable the fuel

injection system. If the key cylinder itself is pulled

out or damaged, it will not generate the resistance

code and the vehicle will not run.

Passkey 3

The Immobilizer uses an antenna ring around the

ignition cylinder to energize a small transponder

chip hidden in the ignition key. When the igni-

tion is turned on, the chip is energized and the

antenna rings sends the code to the Immobilizer

control unit. If the code is incorrect the vehicle

will not start.

PATS

Passive Anti-Theft System (PATS) uses a specially

programmed key to start the vehicle, similar to

the Immobilizer. It uses an antenna ring around

the ignition cylinder to energize a small trans-

ponder chip hidden in the ignition key. When the

ignition is turned on, the chip is energized and the

antenna ring sends the code to the PATS control

unit. If the code is incorrect the vehicle will not

start.

Resistor

One of the components necessary in interface

with VATS factory anti-theft systems. A resistor(s)

are used in conjunction to reproduce the resist-

ance code (R-Code) embedded in the vehicle’s

key

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