TSRM/MK3 Supra/Repair Manual
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FI/EFI System, page 24

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EFI System — MK3 Supra EFI System, page 24
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Page text (OCR transcript)
FI-24                                    EFI SYSTEM — Diagnosis System

[CHECK ENGINE Warning Light diagram]
"CHECK ENGINE" Warning Light
F02704

4. Read the diagnostic code as indicated by the number of flashes of the "CHECK ENGINE" warning light.

Diagnostic code (See page FI-26)
(a) Normal System Operation (no malfunction)
   • The light will alternately blink ON and OFF for 0.26 second intervals.

[Timing diagram showing 0.26 ON/OFF intervals]
(Seconds)
F02581

(b) Malfunction Code Indication
   • In the event of a malfunction, the light will blink every 0.52 seconds. The first number of blinks will equal the first digit of a 2-digit diagnostic code and, after a 1.5 second pause, the 2nd number of blinks will equal the 2nd. If there are two or more codes, there will be a 2.5 second pause between each.
   • After all the codes have been signalled there will be a 4.5 second pause and they will all be repeated as long as the terminals TE₁ and E of the check connector are connected.

[Code timing diagram showing Code No. 13 and Code No. 32]
(Seconds)
F02395

HINT: In the event of a number of trouble codes, indication will begin from the smaller value and continue to the larger.

5. After the diagnosis check, remove SST.
   SST 09843-18020

[Diagram showing SST removal]
F04211