DTC P0131 Or P0132: Condition
WARNING: This page is about a different car, the 2002 Suzuki Vitara. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0131 is set when HO2S No. 1 maximum output voltage is .06 volts or less and average minimum output voltage is .03 volt or less. DTC P0132 is set when HO2S No. 1 maximum output voltage is .74 volts or more and average minimum output voltage is .33 volts or more. MIL is illuminated when Power Control Module (PCM) detects malfunction during 2 consecutive drive cycles. Possible causes are:
- HO2S No. 1 malfunction.
- Fuel system malfunction.
- PCM malfunction.