System Diagnosis

SYSTEM DIAGNOSIS
^ Diagnosis for the temperature control portion of this system is based on malfunction codes stored in the Electronic A/C Control Assembly. When a code has been set, the ~C (or ~F) indicator will nash. Refer to AUTOMATIC AIR CONDITIONING (SECTION 1C1 1991 and 1992 Early Production) or (SECTION 1C 1992 Late Production) for code diagnosis.
^ If the air delivery appears incorrect, refer to System Check and perform Chart # 1.

^ If the temperature coming from the air ducts does not change when adjusting the temperature control button from 16~C (60~F) to 32~C (90~F), perform Chart # 2.