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BLOWER MOTOR RELAY DESCRIPTION The blower motor relay for the front heating-A/C system is an International Standards Organization The front blower motor relay is located in the inte- grated power module (IPM) in the engine compart- OPERATION The front blower motor relay is an electromechan- ical switch that uses a low current input from the When the relay coil is de-energized, spring pres- sure returns the movable relay contact back against The blower motor relay terminals are connected to the vehicle electrical system through a receptacle in • The common feed terminal (30) receives a bat- tery current input from the battery through a B(+) • The coil ground terminal (85) receives a ground input through the front/rear blower motor relay con- • The coil battery terminal (86) receives a battery current input from the battery through a B(+) circuit • The normally open terminal (87) provides a bat- tery current output to the blower motor resistor • The normally closed terminal (87A) is not con- nected to any circuit in this application, but provides The blower motor relay cannot be repaired and, if faulty or damaged, it must be replaced. Refer to the REMOVAL (1) Disconnect and isolate the negative battery cable. (2) Remove the cover from the integrated power module (IPM) located in the engine compartment NOTE: Refer to the fuse and relay map on the IPM (3) Remove the front blower motor relay from the IPM. INSTALLATION NOTE: Refer to the fuse and relay map on the cover (1) Position the front blower motor relay to the proper receptacle in the IPM. (2) Align the front blower motor relay terminals with the terminal cavities in the IPM receptacle and (3) Install the cover onto the IPM. Fig. 17 Front Blower Motor Relay RS CONTROLS - FRONT 24 - 25 |