Diagnostic Aids: P0641
WARNING: This page is about a different car, the 2008 Suzuki Swift +, 2008 Pontiac Wave, and 2008 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.
The 5-volt reference 1 circuit provides 5 volts to the following sensors:
- The accelerator pedal position (APP) sensor 1
- The throttle position (TP) sensor 1
- The throttle position (TP) sensor 2