{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"AC","section_name":"Air Conditioning","page":23,"pages_in_section":111,"title":"A C Amplifier Terminal Standard Value","section_header":"Air Conditioning System — Troubleshooting","ocr_text":"AC-23\n\nAIR CONDITIONING SYSTEM – TROUBLESHOOTING\n\nA C AMPLIFIER TERMINAL STANDARD VALUE\n\nA14          A13          A12\n\n8 7 6 5    4 3 2 1    7 6 5    4 3 2 1    9 8 7 6    5 4 3 2 1\n20 19 18 17 16 15 14 13 12 11 10 9    18 17 16 15 14 13 12 11 10 9 8    22 21 20 19 18 17 16 15 14 13 12 11 10\n\nN08791\n\nTerminal No. | Symbol | Tester Connection | Wiring Color | Condition | Standard Value\n\nA12-1 | L-B/L | A12-1↔A14-9 | BR-W↔W-B | IG ON. B/L mode switch: OFF→ON | 10~14 V → Below 1.0 V\nA12-2 | L-FACE | A12-2↔A14-9 | G↔W-B | IG ON. FACE mode switch: OFF→ON | 10~14 V → Below 1.0 V\nA12-3 | L-M1 | A12-3↔A14-9 | P-B↔W-B | IG ON. Fan speed dial: LO→M1 | 10~14 V → Below 1.0 V\nA12-4 | L-DEF | A12-4↔A14-9 | R-Y↔W-B | IG ON. DEF mode switch: OFF→ON | 10~14 V → Below 1.0 V\nA12-6 | L-AUTO | A12-6↔A14-9 | R-B↔W-B | IG ON. AUTO switch: OFF→ON | 10~14 V → Below 1.0 V\nA12-7 | A/C-IN | A12-7↔A14-9 | L↔W-B | IG ON. A/C compressor: ON→OFF | 10~14 V → Below 1.0 V\nA12-8 | MDEF | A12-8↔A14-9 | Y-L↔W-B | IG ON. Mode control switch: FACE→DEF | Below 1.0 V → 10~14 V\nA12-9 | MFAC | A12-9↔A14-9 | W↔W-B | IG ON. Mode control switch: DEF→FACE | Below 1.0 V → 10~14 V\nA12-10 | L-F/D | A12-10↔A14-9 | BR↔W-B | IG ON. F/D mode switch: OFF→ON | 10~14 V → Below 1.0 V\nA12-11 | L-FOOT | A12-11↔A14-9 | Y↔W-B | IG ON. FOOT mode switch: OFF→ON | 10~14 V → Below 1.0 V\nA12-12 | L-HI | A12-12↔A14-9 | LG↔W-B | IG ON. Fan speed dial: LO→HI | 10~14 V → Below 1.0 V\nA12-13 | L-LO | A12-13↔A14-9 | R↔W-B | IG ON. Fan speed dial: HI→LO | 10~14 V → Below 1.0 V\nA12-14 | L-M2 | A12-14↔A14-9 | B-W↔W-B | IG ON. Fan speed dial: LO→M2 | 10~14 V → Below 1.0 V\nA12-15 | L-M3 | A12-15↔A14-9 | P↔W-B | IG ON. Fan speed dial: LO→M3 | 10~14 V → Below 1.0 V\nA12-16 | L-RDEF | A12-16↔A14-9 | V↔W-B | IG ON. Rear DEF switch: OFF→ON | 10~14 V → Below 1.0 V\nA12-17 | L-REC | A12-17↔A14-9 | LG-B↔W-B | IG ON. REC mode switch: OFF→ON | 10~14 V → Below 1.0 V\nA12-18 | L-FRS | A12-18↔A14-9 | GR↔W-B | IG ON. FRS mode switch: OFF→ON | 10~14 V → Below 1.0 V\nA12-19 | L-A/C | A12-19↔A14-9 | B↔W-B | IG ON. A/C switch: OFF→ON | 10~14 V → Below 1.0 V\nA12-20 | ACC | A12-20↔A14-9 | L-R↔W-B | Turn ignition switch ACC | 10~14 V\nA12-21 | IGN | A12-21↔A14-9 | B-W↔W-B | Start the engine | Pulse signal\nA12-22 | LOCK-IN | A12-22↔A13-9 | G-Y↔V-W | IG ON. A/C compressor: ON | Pulse signal\nA13-1 | MC | A13-1↔A14-9 | R-Y↔W-B | Temperature set: MAX. HOT→MAX. COOL | Below 1.0 V → 10~14 V\nA13-2 | S5 | A13-2↔A14-9 | BR-W↔W-B | Always | 4.5~5.5 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