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2004 Toyota Sienna LE 3.3L MIL Lamp on
Posted to Asian Driveability on 9/1/2009 6 Replies

Toyota experts Help. This van has these 2 codes. I know that the sensor has failed. My question is, could the sensor failure cause the p0420? Thanks alot,

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  Related Documents & Media  2004 Toyota Sienna LE

 
Message Closed w/FIX

car Vehicle Data

2004 Toyota Sienna LE

VIN 5TDBA23CO4
Engine3.3 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0136Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction
P0420Catalyst Efficiency Below Threshold (Bank 1)
Message Closed w/FIX

car Vehicle Data

2004 Toyota Sienna LE

VIN 5TDBA23CO4
Engine3.3 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0136Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction
P0420Catalyst Efficiency Below Threshold (Bank 1)