RAV 4 P0161O2 Sensor Heater Circuit Malfunction

Causes...............

Faulty Vehicle Speed Sensor
- Vehicle speed sensor harness or connectors is open or shorted
- Vehicle speed sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)




The P0500 code is very common on the Toyota Tacoma, Toyota Yaris, Toyota Camry, Toyota Tundra, Toyota RAV-4. Before replacing the sensor you should try cleaning the sensor gear and erasing the code. If the light comes back you may have to replace the sensor.

computer box will need to be changed,the computer is programmed to read the pick up sensors of the camry and is not compatable with the rav4,whiering harness needs to be changed to fit the rav4 computer aswell as the key code sensor around the egnition.

OBD=11
code p0171 refers to system to lean---causes ---intake/ exhaust leak---air system---MAF/VAF sensor---fuel pressure/ pump---injectors HO2s
code po105 refers to manifold absolute pressure (MAP) sensor/bar ometric sensor and circuit malfunction causes---wiring---MAP sensor ECM
code p0760 refers to shift solenoid--circuit malfunction causes--shift solenoid---ECM?TCM
code po770 again refers to shift solenoid.
code p0171 again refers to shift solenoid ---performance or stuck off.
code po130 refers to heated oxygen sensor HOS2 1 bank 1-circuit and have the rest checked .malfunction -- causes---heating inoperative---poor connection---wiring--- HO2S. So replace the shift solenoid and oxygen sensor

Hi, Toyota have recalled its 2001-2003 Rav4s I own 2 of them and my 2002 had the same problem until I call Toyota National customer service and confirmed that my VIN# fail in the recalled vehicle. the main problem is ECM and replaced by local Toyota dealer free of charge. You need to act now by next year this warranty will end since your vehicle will turn 10 years. The other thing is it got to be under 150,000 miles on it. Call the Toyota National customer service right away.

mon rav 4 2002 moteur D4 ne tourne pas au ralenti, ce qui pourrait

air fuel sensor heater circuit response malfuction

Bank 2 sensor 1 Air fuel sensor heater circuit. This sensor is NOT an O2 sensor, though it operates like one and in the same location(in exhaust stream). Basically the PCM detected that the heater circuit was drawing excessive amperage or no amperage. Usually it's a bad a/f sensor and replacing it will fix it, however, it doesn't rule out the possibility of damaged wiring or an open in the power or ground circuit, or a short in the power or ground circuit.

Hope helps (remember rated this).

A/F Sensor Heater Circuit Malfunction (Bank
1 Sensor 1).
You most likely have a bad Air fuel sensor bank 1 sensor 1.

An air/fuel sensor is like an o2 sensor. It is in the exhaust system and looks just like an o2 sensor. You have 2 on the vehicle. We need the check engine light code to tell which one it is. Also recommend only Toyota's air/fuel sensor.

Manufacturer Specific Codes

P1100 BARO Sensor Circuit - Read Our Article on Automotive Circuit Testing For Help With This Toyota Check Engine Light Code

P1120 Accelerator Pedal Position Sensor Circuit - Read Our Article on Automotive Circuit Testing For Help With This Toyota Check Engine Light Code

P1121 Accelerator Pedal Position Sensor Range/Performance Problem

P1125 Throttle Control Motor Circuit - Read Our Article on Automotive Circuit Testing For Help With This Toyota Check Engine Light Code

P1126 Magnetic Clutch Circuit

P1127 ETCS Actuator Power Source Circuit

P1128 Throttle Control Motor Lock

P1129 Electric Throttle Control System

P1130 Air/Fuel Sensor Circuit Range/Performance (Bank 1 Sensor 1) - Read Our Article On Oxygen Sensor Codes For Help With This Toyota Check Engine Light Code - More Related Information

P1133 Air/Fuel Sensor Circuit Response (Bank 1 Sensor 1) - Read Our Article On Oxygen Sensor Codes For Help With This Toyota Check Engine Light Code

P1135 Air/Fuel Sensor Heater Circuit Response (Bank 1 Sensor 1) - Read Our Article On Oxygen Sensor Codes For Help With This Toyota Check Engine Light Code - More Related Information

P1150 Air/Fuel Sensor Circuit Range/Performance (Bank 1 Sensor 2)

P1153 Air/Fuel Sensor Circuit Response (Bank 1 Sensor 2) - Read Our Article On Oxygen Sensor Codes For Help With This Toyota Check Engine Light Code

P1155 Air/Fuel Sensor Heater Circuit. (Bank 1 Sensor 2)

P1200 Fuel Pump Relay Circuit

P1300 Igniter Circuit Malfunction - No. 1

P1305 Igniter Circuit Malfunction - No. 2

P1335 No Crankshaft Position Sensor Signal - Engine Running

P1349 VVT System

P1400 Sub-Throttle Position Sensor

P1401 Sub-Throttle Position Sensor Range/Performance Problem

P1405 Turbo Pressure Sensor Circuit

P1406 Turbo Pressure Sensor Range/Performance Problem

P1410 EGR Valve Position Sensor Circuit Malfunction - Read Our Article on EGR Valve Codes For Help With This Toyota Check Engine Light Code

P1411 EGR Valve Position Sensor Circuit Range/Performance - Read Our Article on EGR Valve Codes For Help With This Toyota Check Engine Light Code

P1500 Starter Signal Circuit

P1510 Boost Pressure Control Circuit

P1511 Boost Pressure Low

P1512 Boost Pressure High

P1520 Stop Lamp Switch Signal Malfunction

P1565 Cruise Control Main Switch Circuit

P1600 ECM BATT Malfunction

P1605 Knock Control CPU

P1630 Traction Control System

P1633 ECM

P1652 Idle Air Control Valve Control Circuit

P1656 OCV Circuit

P1658 Wastegate Valve Control Circuit

P1661 EGR Circuit

P1662 EGR Bypass Valve Control Circuit

P1700 Vehicle Speed Sensor '2' Circuit Fault

P1705 Direct Clutch Speed Circuit Fault

P1765 Linear Shift Solenoid Circuit Fault

P1780 Park/Neutral Position Switch Malfunction (Only For A/T)

Back To Top Of Toyota Check Engine Light Codes Page