Code U2>00

I have 4 code on my Echo 2000, witch are P0440, P0441B,P0446A and the U2>00, the last one, is the main problem as nobodey knows the meaning, anyboday can help me ?

Reply to
Gaétan via CarKB.com
Loading thread data ...

P0440 is evaporative emissions control system malfunction.

P0441 is evaporative emissions control system incorrect purge flow.

P0446 is evaporative emissions control system vent control circuit malfunction

U2>00 is not an OBD II system code.

Who read the codes for you? Have you tried taking the car to a Toyota dealership for diagnosis and repair? You can get a P0440 code from having a loose or missing gas cap but the other codes point to a problem with a control valve in the evaporative emissions control system.

Reply to
Ray O

Reply to
Gaétan via CarKB.com

"U" is a network fault, the ability of the body control module to talk with the ecm. Here is the basics on how OBD2 codes work:

Got this from a class I was in recently, thought it was interesting.

How to basically read OBDll Standardized Diagnostic Trouble codes.

The codes start with a letter:

The trouble code area: P- Powertrain B- Body C- Chassis U- Network Fault

Who created this code:

0- SAE defined code 1- Manufacture defined code 2- Manufacture (they ran out of codes for 1 so they expanded to "2")

System:

0- Total system 1- Air-fuel control 2- Air-fuel control 3- Ignition system or misfire 4- Auxiliary Emission Controls 5- Idle or speed controls 6- Computer system (PCM or I/O) 7- Transmission 8- Non-computer controlled Powertrain

The last two digits indicate the specific problem area

So the code P1711 would tell us:

P- Powertrain

1- It's a manufacture's code 7- Transmission 11- Transmission oil temperature circuit out of range

and the code P0300 would tell us:

P- Powertrain O- It's a SAE mandated code

3- Ignition system or misfire 00- random misfire detected
Reply to
Stephen H

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.