Back to 2001 Volvo S80

2001 VOLVO S80

2.9L I6•AWD•AUTOMATIC•gas
8 active safety recalls on this vehicle — view recalls
Repairs0Labor1126Torque7204Fluid15DTC1334Battery0Maintenance0Recalls8
P0155low severityPowertrain

O2 Sensor Heater Circuit Bank 2 Sensor 1

on 2001 Volvo S80 2.9L I6 · AWD

What this code means

Malfunction in the upstream O2 sensor heater on Bank 2.

Symptoms

  • Check Engine Light
  • Extended warmup emissions

Common causes

  • Faulty heater
  • Blown fuse
  • Wiring issue

Diagnostic steps

  1. Check fuse
  2. Test heater resistance
  3. Inspect wiring

Repair notes

Replace O2 sensor.

Other Powertrain codes on this vehicle

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