Etacs Power-Supply And Ground Circuits; Key-Reminder Switch Input Circuit - Dodge Stealth 1994 Service Manual

CHECKING THE CIRCUIT AND INDIVIDUAL PART

1. ETACS POWER-SUPPLY AND GROUND CIRCUITS

2. KEY-REMINDER SWITCH INPUT CIRCUIT

CHASSIS ELECTRICAL - Theft-alarm System
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).
terminal No.
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 key-
reminder switch is switched ON and LOW-level signals are
sent to the ECU.
ECU terminal voltage (Connection condition of the ECU
connector).
terminal No.
ECU Signal
ECU power supply At all times
ECU
Condition Terminal
voltage