{"model":"mk2","model_name":"MK2 Supra","vehicle":"Toyota Supra A60 (1982–1986, 5M-GE)","document":"Repair Manual","section":"FI","section_name":"EFI System","page":25,"pages_in_section":80,"title":"EFI System","section_header":"EFI System — Diagnosis System","ocr_text":"EFI SYSTEM — Diagnosis System                                                FI-25\n\nCode No. | Light Pattern                    | Code No. | Light Pattern\n---------|----------------------------------|----------|----------------------------------\n—        | ON/OFF [pattern shown]           | 31       | [pattern shown]\n11       | [pattern shown]                  | 32       | [pattern shown]\n12       | [pattern shown]                  | 41       | [pattern shown]\n13       | [pattern shown]                  | 42       | [pattern shown]\n14       | [pattern shown]                  | 43       | [pattern shown]\n21       | [pattern shown]                  | 51       | [pattern shown]\n22       | [pattern shown]                  | 52       | [pattern shown]\n23       | [pattern shown]                  | 53       | [pattern shown]\n\nDIAGNOSTIC CODES\n\nCode No. | System           | Diagnosis                                                                                                              | Trouble Area                                                      | See page\n---------|------------------|------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------|----------\n—        | Normal           | This appears when none of the other codes (11 thru 51) are identified.                                                 |                                                                   |\n11       | ECU (+ B)        | Wire severance, however slight, in + B (ECU).                                                                          | 1. Main relay circuit\n2. Main relay                     | FI-32\n12       | RPM Signal       | No Ne, G signal to ECU within several seconds after engine is cranked.                                                 | 1. Distributor circuit\n2. Distributor\n3. Starter signal circuit\n4. ECU | IG-7\n13       | RPM Signal       | No Ne signal to ECU within several seconds after engine reaches 1,000 rpm.                                             | Same as 12, above.                                                |\n14       | Ignition Signal  | No signal from igniter six times in succession                                                                         | 1. Igniter circuit\n(+B, IG₁, IG₂)\n2. Igniter\n3. ECU        | FI-42\n21       | Oxygen Sensor\nSignal | Oxygen sensor gives a lean signal for several seconds even when coolant temperature is above 50°C or gives a rich signal continuously under high load conditions above 1,500 rpm. | 1. Oxygen sensor circuit\n2. Oxygen sensor\n3. ECU                | 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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}