P1135
Air/Fuel Sensor Heater Circuit Bank 1 Sensor 1
2001-2006 Lexus LS 430 4.3L V8 🇩🇪
Moderate SeverityPowertrain
Description
The heater circuit in the A/F sensor Bank 1 Sensor 1 is not performing correctly.
Symptoms
- CEL
- Poor cold-start economy
- Extended warm-up
- Failed emissions
Common Causes
- Failed heater element
- Open/short in heater wiring
- Blown fuse
- Poor connector
Diagnostic Steps
- Test heater resistance
- Check fuse
- Inspect wiring
- Test ECM heater driver
Repair Notes
Replace A/F sensor or repair heater circuit.
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
P1135 on Other Vehicles
Common Questions
What does code P1135 mean on a 2001-2006 Lexus LS 430?
P1135 stands for "Air/Fuel Sensor Heater Circuit Bank 1 Sensor 1". The heater circuit in the A/F sensor Bank 1 Sensor 1 is not performing correctly.
What are the symptoms of P1135 on a Lexus LS 430?
Common symptoms of P1135 include: CEL, Poor cold-start economy, Extended warm-up, Failed emissions.
What causes P1135 on a 2001-2006 Lexus LS 430?
Common causes of P1135 include: Failed heater element, Open/short in heater wiring, Blown fuse, Poor connector.