TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical Systems68 / 203
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TROUBLESHOOTING — MK4 Supra Body Electrical Systems, page 68
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BE–68 BODY ELECTRICAL SYSTEM – POWER WINDOW CONTROL SYSTEM TROUBLESHOOTING The table below will be useful for you in troubleshooting these electrical problems. The most likely causes of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and replace the part when it is found to be faulty. Trouble | Parts name | (See page) *1 Power window does not operate. 1. ALT Fuse (BE–5) 2. POWER Fuse (BE–5) 3. AM 1 Fuse (BE–5) 4. DOOR Fuse (BE–6) 5. Ignition Switch (BE–8) 6. Power Window Master Switch (BE–69) 7. Wire Harness *2 Power Window does not operate. 1. GAUGE Fuse (BE–6) 2. Power Main Relay (BE–73) 3. Ignition Switch (BE–8) 4. Power Window Master Switch (BE–69) 5. Wire Harness "One Touch Power Window System" does not operate. 1. Power Window Master Switch (BE–69) Only one window glass does not move. 1. Power Window Master Switch (BE–69) 2. Power Window Switch (BE–71) 3. Power Window Motor (BE–71) 4. Wire Harness "Window Lock System" does not operate. 1. Power Window Master Switch (BE–69) Illumination does not light up. 1. Power Window Master Switch (BE–69) *1 Power door lock does not operate. *2 Power door lock is normal.