Mitsubishi 3000GT 1991, Service Manual

Page: 917 / 1146

B O D Y P o w e r W i n d o w
CHECKING INDIVIDUAL PART AND CIRCUIT
1. ETACS POWER-SUPPLY AND GROUND CIRCUITS
Battery
Junction block
Jumper connector
ETACS
Vehicles without theft-alarm system
“2: Vehicles with theft-alarm system
Description of operation
The battery supplies a stabilized 5V power supply to the electronic control unit, via the constant-voltage circuit
and terminal (51) directly connected to the battery. If there is an abnormal condition of the power-supply
circuit, other ETACS functions also will not operate.
Electronic control unit terminal voltage (Connection status of electronic control unit connector)
ECU terminal No. Signal Condition
Terminal
voltage
51
Electronic control unit power supply
At all times System
voltage
Checking the ground circuit (Disconnect the connector and check the wiring harness side.)
Terminal No.
Connected to/measured part
Measurement
Tester
connection
Check conditions
Standard
57”’ Electronic control unit ground Resistance At all times Continuity
N O T E
Vehicles without theft-alarm system
“2: Vehicles with theft-alarm system
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