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 ?
Code U2>00
May 21, 2006
3 Replies
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.
"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 PowertrainThe 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 rangeand the code P0300 would tell us:
P- Powertrain O- It's a SAE mandated code
3- Ignition system or misfire 00- random misfire detectedJoin the Discussion
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