p0135
Easy Fix
Acura · SUVs
O2 Sensor Heater Circuit (Bank 1, Sensor 1) Malfunction
Quick Answer
Error code P0135 on your Acura SUVs means: O2 Sensor Heater Circuit (Bank 1, Sensor 1) Malfunction. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Check fuses related to oxygen sensor heater
2
Inspect oxygen sensor heater connector
3
Test heater element resistance
4
Check wiring harness continuity
5
Replace oxygen sensor if heater is faulty
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Parts You May Need
Oxygen sensor
Fuse
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