TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.194

BE/Body Electrical Systems — Back up Power Source Circuit, page 195

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p.196
Back up Power Source Circuit — MK4 Supra Body Electrical Systems, page 195
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Page text (OCR transcript)
BE-195

BODY ELECTRICAL SYSTEM – CRUISE CONTROL SYSTEM

Back up Power Source Circuit

CIRCUIT DESCRIPTION

The ECU back–up power source provides power even when the ignition switch is off and is used for diagnostic code memory, etc.

WIRING DIAGRAM

ALT
2A
2
W
POWER
2
2
W-L
2
1B
8
1H
Cruise Control
ECU
BATT
W-R
15
R/B No.2
R/B No.2
B
Battery

N12782