TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.078

BE/Body Electrical Systems — Troubleshooting, page 79

79 / 203
p.080
Troubleshooting — MK4 Supra Body Electrical Systems, page 79
100%
Page text (OCR transcript)
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.