The circuit voltage is too high. Could be a failed sensor, wiring short, or PCM problem.
Downstream O2 sensor circuit volts high.Downstream O2 sensor circuit volts high.
The sensor circuit high volts is typically located near the sensor that is monitoring high voltage levels. It is important to ensure the sensor circuit is properly designed and installed to accurately detect and measure high voltage levels to prevent any potential damage or danger.
o2 Sensor Circuit High Volts (Bank2 Sensor2
P0532 A/C Refrigerant Pressure Sensor Circuit LowInputP0533 A/C Refrigerant Pressure Sensor Circuit HighInputP0533 -A/C Refrigerant Pressure Sensor Circuit High Input.possible causes, ACP circuit short to GND or SIGRTN.VREF circuit open.Damaged PCM.Open ACP circuit.Damaged ACP sensor.Possible Solution verify vref between 4 and 6 volts.
Map sensor circuit voltage highMap sensor circuit voltage high
Around 13.5 volts or can be as high as 14 volts.
Circuit breakers are typically designed for lower voltages, such as up to 1000 volts. For extremely high voltages like one million volts, special high-voltage circuit breakers or other protection devices would be used in power systems. These specialized devices are designed to handle the unique challenges posed by very high voltage levels.
Flash Code Description/Information 12 / 52 Low Battery Voltage or VSS (12 volts) 13 / 53 Airbag (SRS) Or Crash Sensor Circuit Short Circuited To Ground or Earth 14 / 54 Primary Crash Sensor Circuit Short Circuited To Ground or Earth 21 Safing Sensor / Diagnostic Unit Not Properly Mounted 22 Safing Sensor / Diagnostic Unit Output Circuit Short Circuited To Battery Voltage or VSS (12 volts) 23 Safing Sensor / Diagnostic Unit Input Feed/Return Circuit Open Circuit 24 Safing Sensor / Diagnostic Unit Output Feed/Return Circuit Open Circuit 32 Driver's Airbag (SRS) Module Circuit High Resistance Or Open Circuit 33 Passenger's Airbag (SRS) Module Circuit High Resistance Or Open Circuit 34 Driver's Airbag (SRS) Module Circuit Low Resistance Or Open Circuit 35 Passenger's Airbag (SRS) Module Circuit Low Resistance Or Open Circuit 41 Right-hand Radiator Primary Crash Sensor Feed/ Return Circuit Open Circuit 42 Left-hand Radiator Primary Crash Sensor Feed/Return Circuit Open Circuit 44 Right-hand Radiator Primary Crash Sensor Not Mounted Properly 45 Left-hand Radiator Primary Crash Sensor Not Mounted Properly 51 Diagnostic Monitor Internal Thermal Fuse Blown (Replace Diagnostic Monitor) 52 Back Up Power Supply Voltage Boost Failure 53 Primary Crash Sensor Circuit Resistance To Ground Or Diagnostic Monitor Failure
HO2S Heater Control Circuit High (Bank 1 Sensor 2)symptomsOther than the MIL light illuminating you may not notice any performance issues.causeA short in the O2 sensor heater circuit or the sensor itselfA faulty O2 sensor heaterWiring or connectors are broken or frayed to the sensor or relayBad PCM or ECMThe fixCorrect wiring short or loose connector found in inspection.and/orReplace the bank 1 sensor 2, O2 sensorReplace PCM if circuit has failed and no wiring issues present, good O2 sensor
The QX4 code P0158 refers to a problem with the oxygen sensor circuit, specifically indicating a high voltage signal from the downstream oxygen sensor (Sensor 2) of bank 2. This typically suggests that the sensor may be malfunctioning, there could be a wiring issue, or a potential exhaust leak affecting the sensor readings. It is essential to diagnose the specific cause to ensure proper vehicle performance and emissions control.
P1401 - DPF EGR Sensor Circuit High Voltage Detected The EGR monitor checks the DPFE sensor signal to the PCM for high voltage. The test fails when the average voltage to the PCM goes to a voltage greater than the maximum calibrated value. Possible causes: DPFE circuit open VREF short to PWR Damaged DPFE sensor DPFE circuit short to PWR SIGNAL RTN circuit open Damaged PCM Look at scan data stream for a reading greater than 4.5 volts with the key ON and engine OFF or running. This indicates a hard fault.
O2 sensor circuit high voltage (bank 1 sensor 2)