OBD Guide

P0062

HO2S Heater Control Circuit Bank 2 Sensor 3

P0062 is an OBD-II diagnostic trouble code meaning: HO2S Heater Control Circuit Bank 2 Sensor 3. Common causes: faulty oxygen sensor bank 2 positions 3, broken or damaged heater circuit wiring. Estimated repair cost: $6–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–89 (est.)

Symptoms

  • Increased fuel consumption
  • Unstable engine idling
  • Reduced engine power
  • Increased exhaust emissions
  • Check Engine Light Illuminated
  • Long-term warming up of the engine to operating temperature

Causes

  • Faulty oxygen sensor bank 2 positions 3
  • Broken or damaged heater circuit wiring
  • Corrosion or oxidation of sensor connector contacts
  • Blown heater circuit fuse
  • Engine control unit (ECU) malfunction
  • Short circuit in the heater circuit to ground or positive
  • High resistance in the heater power circuit

How to Fix

  1. Connect the OBD scanner and read all error codes
  2. Check the oxygen sensor heater circuit fuses.
  3. Visually inspect the oxygen sensor and its wiring for damage.
  4. Check the resistance of the oxygen sensor heater (usually 2-14 ohms)
  5. Measure the supply voltage at the sensor connector (should be 12V)
  6. Check the integrity of the wiring from the ECU to the sensor
  7. Clean the connector contacts from corrosion and oxidation
  8. If necessary, replace the oxygen sensor
  9. Reset error codes and take a test drive
  10. Recheck the system with a scanner

Related codes

Error P0062 by Vehicle Brand

FAQ

What does the P0062 code mean?

P0062 is an OBD-II diagnostic trouble code that indicates: HO2S Heater Control Circuit Bank 2 Sensor 3

What causes a P0062 error code?

The most common causes of P0062 include: Faulty oxygen sensor bank 2 positions 3; Broken or damaged heater circuit wiring; Corrosion or oxidation of sensor connector contacts; Blown heater circuit fuse.

How do I fix a P0062 diagnostic trouble code?

To fix P0062: Connect the OBD scanner and read all error codes. Check the oxygen sensor heater circuit fuses.. Visually inspect the oxygen sensor and its wiring for damage.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0062?

Limited driving only, diagnose soon

How much does it cost to fix P0062?

The estimated repair cost for P0062 is $6–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat