DTC Troubleshooting: P0037(3.0L Engine): Notes

DTC P0037  : Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Heater Circuit Low Voltage

How to use this manual .

NOTICE: 

Before you troubleshoot, review the How to Troubleshoot - Refer to: How to Troubleshoot the Fuel and Emissions Systems(2.0L Engine) or How to Troubleshoot the Fuel and Emissions Systems(3.0L Engine) .