Seat Heater Module

Disconnect the seat heater module connector, and check the continuity between terminals of connector.

Connector & terminal 

HI 

No. 1 - No. 3:

No. 3 - No. 4:

LOW 

No. 1 - No. 4:

Fig 1: Checking Continuity Between Seat Heater Unit Connector Terminals

Courtesy of SUBARU OF AMERICA, INC.

Is there continuity between the terminals?

Yes: Seat heater module is normal.

No: If no continuity exists, replace the seat heater module with a new part. Ref. to SEATS > Front Seat > DISASSEMBLY .