FixVault

Blower Motor Relay

Fig 1: Identifying Blower Motor Relay
G03245323Courtesy 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.