Blower Motor Relay

WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Blower Motor Relay

Courtesy of FORD MOTOR CO.

BLOWER MOTOR RELAY CIRCUIT REFERENCE

Pin Number(s)	Circuit Designation/Description	Normal Condition/Measurement
30	CKT 364 (BK/LG) blower motor relay switch voltage circuit	Greater than 10 volts at all times.
85	CKT 298 (VT/OG) blower motor relay coil voltage circuit	Greater than 10 volts at all times.
86	CKT 1322 (BN/WH) blower motor relay control from SJB	Less than 100 ohms to chassis ground with the blower in the lowest setting.
87	CKT 371 (PK/WH) blower motor relay switched output	Less than 5 ohms to chassis ground with the blower in the highest setting.