DTC P1650: PSP Switch Out Of Self-Test Range: Condition
WARNING: This page is about a different car, the 2002 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
DTC is set when Powertrain Control Module (PCM) detects Power Steering Pressure (PSP) switch input voltage is out of range. Possible causes are:
- PSP switch malfunction.
- Short or open circuit between PSP switch and PCM.
- PCM malfunction.