TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.194
BE/Body Electrical Systems195 / 203
p.196
Back up Power Source Circuit — MK4 Supra Body Electrical Systems, page 195
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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