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TROUBLE DIAGNOSIS ATC-61 C D E F G H I K L M A B ATC Potentio Temperature Control (PTC) The PTC is built into the multifunction switch. It can be set at an ° C (1.0 ° F) in the 18 ° C (60 ° F) to 32 ° C (90 ° F) tempera- ture range by turning the temperature dial. The set temperature is DIAGNOSTIC PROCEDURE FOR A/C SYSTEM SYMPTOM: A/C system does not come on. 1. CHECK POWER SUPPLY CIRCUIT FOR AUTO AMP. 1. Disconnect auto amp. connector. 2. Check voltage between auto amp. harness connector M119 ter- OK or NG OK >> GO TO 2. NG >> Check 10A fuses [Nos. 2, 6 and 21 located in the fuse block (J/B) No. 1]. Refer to BLOCK - JUNCTION BOX (J/B) NO.1" . ● If fuses are OK, check for open circuit in wiring harness. Repair or replace if necessary. ● If fuses are NG, replace fuse and check wiring harness for short circuit. Repair or replace if nec- RJIA1284E RJIA0240E Terminals Ignition switch position (+) (-) OFF ACC ON Auto amp. connector Terminal No. (Wire color) Ground voltage M119 7 (GY/L) Approx. 0V Battery Battery M120 26 (Y/G) Battery Battery Battery M120 27 (P) Approx. 0V Approx. 0V Battery RJIA3025E |