Relay CodeAbbreviationDesignationAK35O2S 2 (After TWC) Heater Relay ModuleBK20ASR Charging Pump Relay Module (Up To 11/94)K17AIR Relay ModuleC+DK9Auxiliary Fan Relay Module (Stage 1[up to 11/94]and 2)K9K1Auxiliary Fan Relay (Stage 1)(Up To 11/94)K9K2Auxiliary Fan Relay (Stage 2)(Up To 11/94)CK9/1Auxiliary Fan Relay Module (Stage 1)(11/94-08/95)- Reserve (as of 09/95)DK10Auxiliary Fan Relay Module (Stage 2)(11/94-08/95)- Reserve (as of 09/95)EK2HCS …