P1647 - Linear O2 Sensor Control Chip (Bank 2)
P1647 - LINEAR O2 SENSOR CONTROL CHIP (BANK 2)
| Description: | See the description for DTC P1646. | |||
| Possible Causes: | See the possible causes for DTC P1646. | |||
| Diagnostic Aids: | See the diagnostic aids for DTC P1646. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory | |
| All | Reprogram or update the calibration. Check for other DTCs and diagnose those first. Make sure to check for aftermarket performance products before installing a new PCM. Clear the DTCs, repeat the self-test. If the DTC is retrieved again, install a new PCM. Refer toFLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) . | |||