TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical Systems79 / 203
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TROUBLESHOOTING — MK4 Supra Body Electrical Systems, page 79
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BODY ELECTRICAL SYSTEM – POWER MIRROR CONTROL SYSTEM BE–79 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) Mirror does not operate | 1. RAD No.2 Fuse | (BE–6) 2. Mirror Switch | (BE–79) 3. Mirror Motor | (BE–80) 4. Wire Harness Mirror operates abnormally | 1. Mirror Switch | (BE–79) 2. Mirror Motor | (BE–80) 3. Wire Harness MIRROR SWITCH INSPECTION INSPECT SWITCH CONTINUITY NC88889 e-8-2 Z14T09 Left Side Switch position | Tester connection to terminal number | Specified condition OFF | – | No continuity UP | 2–5 6–8 | Continuity DOWN | 2–6 5–8 | Continuity LEFT | 1–8 2–5 | Continuity RIGHT | 1–2 5–8 | Continuity Right Side Switch position | Tester connection to terminal number | Specified condition OFF | – | No continuity UP | 2–5 3–8 | Continuity DOWN | 2–3 5–8 | Continuity LEFT | 2–5 7–8 | Continuity RIGHT | 2–7 5–8 | Continuity If continuity is not as specified, replace the switch.