What P1135 means
Pedal Position Sensor A Circuit Intermittent
Common causes (general)
Before spending money on parts, verify the code with a scan tool and read freeze frame data. Freeze frame captures every sensor value at the moment the code set — this is often enough to figure out the root cause without further testing.
Manufacturer-specific descriptions
Different manufacturers use this code for slightly different failure modes. Here's what your specific make means by P1135:
| BMW | O2 Sensor Heater Circuit Low Voltage (Bank 1 Sensor 1) |
| BUICK | HO2S Lean Average Bank 1 Sensor 1 |
| CADILLAC | HO2S Lean Average Bank 1 Sensor 1 |
| CHEVY | HO2S Lean Average Bank 1 Sensor 1 |
| CHRYSLER | O2 Sensor Heater 1/1 Element Resistance Out of Range; Pedal Position Sensor A Circuit Intermittent |
| FIAT | In position 3 piston; Oxygen sensor B1-S2; Preheating resistance 1 above catal.; Oxygen sensor B1-S2 |
| FORD | Pedal Position Sensor A Circuit Intermittent |
| GM | HO2S Lean Average Bank 1 Sensor 1 - Read Our Article On Oxygen Sensor Codes For Help With These GM Trouble Codes; Heated Oxygen Sensor (HO2S) Lean Mean Bank 1 Sensor 1 |
| GMC | HO2S Lean Average Bank 1 Sensor 1 |
| LEXUS | Air/Fuel Ratio Sensor Heater Circuit Malfunction Bank 1 Sensor 1 |
| LINCOLN | Pedal Position Sensor A Circuit Intermittent |
| MAZDA | HO2S Bank 1 Sensor 1 Heater Circuit Low Input |
| MERCURY | Pedal Position Sensor A Circuit Intermittent |
| MITSUBISHI | Pedal Position Sensor A Circuit Intermittent |
| NISSAN | Pedal Position Sensor A Circuit Intermittent; Intake Valve Timing Control,RH Bank 2 |
| OLDSMOBILE | HO2S Lean Average Bank 1 Sensor 1 |
| OTHER | Pedal Position Sensor A Circuit Intermittent |
| SATURN | HO2S Lean Average Bank 1 Sensor 1 |
| TOYOTA | Air/Fuel Sensor Heater Circuit Response Bank 1 Sensor 1 |
| VOLKSWAGEN | HO2S Lean Mean Bank 1 Sensor 1; O2 Sensor Heating Circ.,Bank1 + 2 - Sensor2 Electrical Malfunction |
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