Electrically heated rear seat: Diagnostics
WARNING: This page is about a different car, the 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
A fault in the relay control circuit will generate DTC B1130 in TWICE when:
- Open circuit or short circuit to ground
- Short-circuit to B+
The diagnostic trouble code is not generated when the voltage is below 11V or during diagnostic communication. The control module output can be activated with the diagnostic tool.