P1153 – HO2S22 Heater Circuit Fault (Ford)

Description

P1153 Ford indicates a malfunction in the heater circuit of the downstream O2 sensor on Bank 2.

Want to confirm the real cause of this fault code?

A high-quality OBD2 scanner gives you live data, fuel trims, sensor readings and freeze-frame information — exactly what you need to verify the root cause of this code with confidence.

View Recommended Scanners

Symptoms

  • Delayed closed-loop
  • Poor fuel economy
  • Rough idle

Causes

  • Failed heater element
  • Wiring issues
  • Blown fuse

Diagnosis

  • Check heater resistance
  • Inspect wiring
  • Measure heater voltage

Repair

  • Replace O2 sensor
  • Repair wiring