Back to 2002 Mazda 626

2002 MAZDA 626

2.0L I4FWDAUTOMATICgas
Repairs0Labor469Torque3639Fluid6DTC697Battery0Maintenance0Recalls0
P0058low severityPowertrain

HO2S Heater Control Circuit High Bank 2 Sensor 2

on 2002 Mazda 626 2.0L I4 · FWD

What this code means

High voltage in the Bank 2 Sensor 2 O2 heater circuit.

Symptoms

  • Check Engine Light

Common causes

  • Short to power
  • Faulty sensor

Diagnostic steps

  1. Test voltage
  2. Check for shorts to power

Repair notes

Repair or replace.

Other Powertrain codes on this vehicle

Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →