TSRM/MK4 Supra/Repair Manual
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BE/Body Electrical Systems — Troubleshooting, page 31

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Troubleshooting — MK4 Supra Body Electrical Systems, page 31
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Page text (OCR transcript)
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