TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical Systems31 / 203
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TROUBLESHOOTING — MK4 Supra Body Electrical Systems, page 31
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BODY ELECTRICAL SYSTEM – BACK–UP LIGHT SYSTEM BE–31 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) Back Up Light does not light up 1. GAUGE Fuse (BE–6) 2. Ignition Switch (BE–8) 3. Back–up Light Switch (M/T) (BE–31) 4. Park/ Neutral Position Switch (A/T) (AT1–Section) 5. Wire Harness 6. Bulb Back Up Light remains always on 1. Wire Harness Only one light does not light up 1. Wire Harness 2. Bulb 2JZ-GE 2JZ-GTE 209343 le-2-1-U N08963 le-2-1-M BACK UP LIGHT SWITCH INSPECTION INSPECT SWITCH CONTINUITY Switch position | Tester connection to terminal number | Specified condition Free | 1–2 | No continuity Push | 1–2 | Continuity If continuity is not as specified, replace the switch. PARK/NEUTRAL POSITION SWITCH INSPECTION See AT section