Engine Error
P0032
HO2S Heater Control Circuit High (Bank 1 Sensor 1)
Severity
Medium
Symptoms
Check engine light, failed emissions testing
Common Causes
- Short to battery voltage in O2 heater circuit
- Defective upstream oxygen sensor
- Corroded wiring connector
- Damaged harness
How to Fix
- 1 Test wiring harness for voltage shorts
- 2 Replace the oxygen sensor
- 3 Clean and repair sensor connectors
- 4 Trace and repair harness
Estimated Repair Cost
USD
$100
–
$350
O2 Sensor replacement: $150 - $300