Possible Causes
WARNING: This page is about a different car, the 2005 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.
- An open in circuit 30-FB3 (RD/OG)/30-FA1 (RD), 91S-FB3 (BN/BL) or 91S-FB4 (BN/GN).
- A short to ground or voltage in circuit 91S-FB3 (BN/BL) or 91S-FB4 (BN/GN).
- A short to voltage in circuit 91S-FB3 (BN/BL) or 91S-FB4 (BN/GN).
- Coolant control valve.
- Evaporator discharge air temperature sensor.
- DATC module.