DTC P0031: O2 Sensor 1/1 Heater Circuit Low

NOTE: For component location, see COMPONENT LOCATIONS . For connector identification, see CONNECTOR IDENTIFICATION . For circuit identification and wiring diagram, see WIRING DIAGRAMS . If Powertrain Control Module (PCM) is replaced, PCM must be reprogrammed. See PROGRAMMING .

For testing procedures, see Fig 1 and Fig 2 .

Fig 1: DTC P0031-P0038: Sensor Heater Circuit Low/High (1 Of 2)

Courtesy of CHRYSLER CORP.

Fig 2: DTC P0031-P0038: Sensor Heater Circuit Low/High - Steps 1-6 (2 Of 2)

Courtesy of DAIMLERCHRYSLER CORPORATION