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ATC-52 < SERVICE INFORMATION > TROUBLE DIAGNOSIS If all operational checks are OK (symptom cannot be duplicated), go to Incident Simulation Tests in "How to Perform Efficient Diagnosis for an Electrical Incident" and perform tests as outlined to simulate driving conditions environment. If symptom appears, refer to ATC-32, "How to Perform Trouble Diagnosis for Quick and perform applicable trouble diagnosis procedures. Power Supply and Ground Circuit for Auto Amp INFOID:0000000001328183 SYMPTOM: A/C system does not activate. INSPECTION FLOW COMPONENT DESCRIPTION Unified Meter and A/C Amp. (Automatic Amplifier) The unified meter and A/C amp. has a built-in microcomputer which Potentio Temperature Control (PTC) *1 "DIAGNOSIS PROCEDURE FOR A/ *2 *3 AV-79, "Unable to Operate System (Without navigation system) or able to Operate System with A/C and (With navigation system) SJIA1582E SJIA1566E |