Hyundai Cars 2006-2008

2.0L L4 VIN D Auto 11

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Trouble Code: P1801



Invalid Transponder Data

Possible Causes:



Storage of invalid data in transponder during key teaching
 
Faulty transponder or different kind of transponder
 
Omitted transponder in the key
 

Trouble Code: P1803



Invalid Request from ECM or Corrupted Data

Possible Causes:



Faulty communication between key, SMARTRA and engine ECM
 

Trouble Code: P1805



Communication Failure

Possible Causes:



Faulty initialization of engine ECM EEPROM
 
Damage of engine ECM EEPROM data
 
Faulty immobilizer antenna unit (SMARTRA)
 

Trouble Code: P2096



Post Catalyst Fuel Trim System Too Lean (Bank 1)

Possible Causes:



Three way catalytic converter (TWC)
 
Rear HO2S
 

Trouble Code: P2097



Post Catalyst Fuel Trim System Too Rich (Bank 1)

Possible Causes:



Three way catalytic converter (TWC)
 
Rear HO2S
 

Trouble Code: P2195



HO2S Signal Stuck Lean (Bank 1 Sensor 1)

Possible Causes:



Contact resistance in connectors
 
Faulty HO2S
 

Trouble Code: P2196



HO2S Signal Stuck Rich (Bank 1 Sensor 1)

Possible Causes:



Contact resistance in connectors
 
Faulty HO2S
 

Trouble Code: P2231



HO2S Signal Circuit Shorted To Heater Circuit (Bank 1 Sensor 1)

Possible Causes:



Contact resistance in connectors
 
Interference in HO2S
 

Trouble Code: P2237



HO2S Pumping Current Circuit/Open Bank 1, Sensor 1

Possible Causes:



Contact resistance in connectors
 
Open or short to ground in HO2S circuit
 
Front HO2S sensor
 

Trouble Code: P2243



HO2S Reference Voltage Circuit/Open Bank 1, Sensor 1

Possible Causes:



Contact resistance in connectors
 
Open or short to ground in HO2S circuit
 
Front HO2S sensor
 

Trouble Code: P2251



HO2S Reference Ground Circuit/Open Bank 1, Sensor 1

Possible Causes:



Contact resistance in connectors
 
Open or short to ground in HO2S circuit
 
Front HO2S sensor
 

Trouble Code: P2270



HO2S Signal Stuck Lean (Bank 1 Sensor 2)

Possible Causes:



Three way catalytic converter (TWC)
 
Air leakage in exhaust system
 
Faulty rear HO2S sensor
 

Trouble Code: P2271



O2 Signal Stuck Rich (Bank 1/2 Sensor 1)

Possible Causes:



Three way catalytic converter (TWC)
 
Air leakage in exhaust system
 
Faulty rear HO2S sensor
 

Trouble Code: P2414



HO2S Exhaust Sample Error Bank 1 Sensor 1

Possible Causes:



Incorrect installation of HO2S sensor
 
Contact resistance in connectors
 

Trouble Code: P2626



HO2S Pumping Current Trim Circuit Open Bank 1 Sensor 1

Possible Causes:



Contact resistance in connectors
 
Open or short to ground in HO2S circuit
 
Faulty canister
 
Faulty front HO2S sensor
 

Trouble Code: U0001



CAN Communication Malfunction

Possible Causes:



CAN BUS
 
CAN communication module component
 

Trouble Code: U0100



TCM Communication

Possible Causes:



Open or short in CAN communication harness
 
Faulty ECM
 
Faulty TCM
 

 
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