DTC P1231: Throttle Position Sensor 1 and 2 Circuit. Sum Out of Range (No Limp Home).: Notes

WARNING: This page is about a different car, the 2003 Saab 9-3 and 2002 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.

Brief disturbances in the throttle valve control which causes the engine to surge.

Fig 1: Circuit Diagram - Throttle Position Sensor 1 And 2 Circuit. Sum Out Of Range (No Limp Home)

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