What does code P1647 mean?

Q: What does code P1647 mean?

Linear O2 Sensor Control Chip Bank 2. P1647 on a Jaguar means the engine control module (ECM) has detected a fault in the linear oxygen sensor control chip circuit for bank 2, which is the side of the engine that does not contain cylinder number one. The ECM monitors the current pump cell inside the wideband oxygen sensor and the dedicated chip that drives it, and it sets this code when the feedback signal falls outside the expected range or the chip reports an internal error.

DTC codes / Jaguar codes / P1647

P1647 · JaguarLinear O2 Sensor Control Chip Bank 2

P1647 on a Jaguar means the engine control module (ECM) has detected a fault in the linear oxygen sensor control chip circuit for bank 2, which is the side of the engine that does not contain cylinder number one. The ECM monitors the current pump cell inside the wideband oxygen sensor and the dedicated chip that drives it, and it sets this code when the feedback signal falls outside the expected range or the chip reports an internal error.

SystemPowertrain

Code typeJaguar specific

SeverityMedium

Fix difficultyProfessional

AreaComputer and output circuits

Guidance is general and written for Jaguar vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.