DTC codes / Jaguar codes / P1196
P1196 on a Jaguar means the engine control module (ECM) has detected that the electrical resistance of the downstream oxygen sensor heater circuit is lower than expected, indicating a short or excessive current draw. The ECM monitors the heater element current during cold-start heater activation and flags this code when the circuit pulls more current than the calibrated threshold for that bank.
Guidance is general and written for Jaguar vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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