EV Diagnostics
Source-backed diagnostic reference

P1197 EV diagnostic code

O2 Sensor 1/2 Bank 1 Sensor 2 Slow During Catalyst Monitor

Reference status: This page preserves source-backed code definitions for discovery. Manufacturer/model applicability, repair steps and safety conclusions are not treated as verified unless a manufacturer-specific verified report is available.

Reference definitions

  • DODGE: O2 Sensor 1/2 Bank 1 Sensor 2 Slow During Catalyst Monitor Source
  • FORD: Key Off Voltage Low Source
  • JEEP: O2 Sensor 1/2 (Bank 1 Sensor 2) Slow During Catalyst Monitor Source
  • LINCOLN: Key Off Voltage Low Source
  • MAZDA: Mileage Switch Circuit Source
  • MERCURY: Key Off Voltage Low Source
  • OTHER: Key Off Voltage Low Source
  • PLYMOUTH: O2 Sensor 1/2 (Bank 1 Sensor 2) Slow During Catalyst Monitor Source
  • PONTIAC: O2 Sensor 1/2 (Bank 1 Sensor 2) Slow During Catalyst Monitor Source
  • VOLKSWAGEN: Oxygen Sensor Heater Circuit Bank 2 Sensor 1 Electrical Malfunction Source

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