Dodge Stealth 1994, Service Manual

Page: 423 / 434

CHASSIS ELECTRICAL Theft-alarm System
CHECKING THE CIRCUIT AND INDIVIDUAL PART
1. ETACS POWER-SUPPLY AND GROUND CIRCUITS
Description of operation
The battery supplies a stabilized 5V power supply to the ECU,
via the constant-voltage circuit and terminal 51 (which is
directly connected to the battery).
ECU terminal voltage (Connection condition of the ECU
connector).
ECU Signal Condition Terminal
terminal No. voltage
ECU power supply At all times
2. KEY-REMINDER SWITCH INPUT CIRCUIT
Description of operation
The key-reminder switch is switched OFF and HIGH-level
signals are sent to the ECU when the key is inserted into the
ignition key cylinder: when the key is removed, the
reminder switch is switched ON and LOW-level signals are
sent to the ECU.
ECU terminal voltage (Connection condition of the ECU
connector).
ECU
terminal No.