P0135
O2 Sensor Heater Circuit Bank 1 Sensor 1
1998-2008 Volkswagen Pointer 1.8L I4 🇦🇺
Low SeverityPowertrain
Description
The PCM detected a malfunction in the heater element of the upstream O2 sensor on Bank 1.
Symptoms
- Check Engine Light
- Extended warmup emissions
- Failed emissions test
Common Causes
- Faulty O2 sensor heater element
- Blown fuse
- Wiring damage
- PCM heater driver failure
Diagnostic Steps
- Check O2 heater fuse
- Test heater resistance (typically 2-30 ohms)
- Inspect wiring
- Check PCM heater relay output
Repair Notes
Replace O2 sensor if heater resistance is open or out of spec.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0135 on Other Vehicles
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2019-2024 2.0L Turbo I4
Volkswagen Atlas
2018-2024 2.0L Turbo I4
Volkswagen Atlas
2018-2024 3.6L V6
Volkswagen Atlas Cross Sport
2020-2024 2.0L Turbo I4
Volkswagen Atlas Cross Sport
2020-2024 3.6L V6
Volkswagen Beetle
2012-2019 2.0L Turbo I4
Volkswagen Beetle
2012-2019 2.5L I5
Volkswagen Beetle Turbo
2012-2018 2.0L Turbo I4
Common Questions
What does code P0135 mean on a 1998-2008 Volkswagen Pointer?
P0135 stands for "O2 Sensor Heater Circuit Bank 1 Sensor 1". The PCM detected a malfunction in the heater element of the upstream O2 sensor on Bank 1.
What are the symptoms of P0135 on a Volkswagen Pointer?
Common symptoms of P0135 include: Check Engine Light, Extended warmup emissions, Failed emissions test.
What causes P0135 on a 1998-2008 Volkswagen Pointer?
Common causes of P0135 include: Faulty O2 sensor heater element, Blown fuse, Wiring damage, PCM heater driver failure.