CAR OBD CODES
OBD/DTC Search, e.g.P0411
CAR OBD CODES P0411
P0411 OBD Code Definition:
P0411 Secondary Air Injection System Insufficient Flow
P0411 OBD Code Description:
OBD2 Code P0411 Definition:
The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of the most important inputs by the PCM for fuel control and timing. This test monitors the number of high resolution pulses which have been missed (not detected). It’s based on a comparison between the number of pulses that were detected since the last pump cam pulse and the number of the pulses that should have occurred. There are approximately 64 high resolution pulses for every cam pulse.
Symptoms
Possible sumptoms of P0411
– Engine Light ON (or Service Engine Soon Warning Light)
Possible Causes
Possible causes of P0411
– Open or short in the optical sensor circuit – Optical sensor connector – Damaged optical sensor – Damaged PCM or ECM The Error code is generally activated on detection of the following conditions: Some high resolution pulses are missing from the optical sensor to the PCM
Possible Solutions
– If damage, repair optical sensor circuit – Replaced optical sensor – Replaced PCM or ECM
Note: The information on the P0411 error code is purely informative, if you need more useful information, please consult your technician.
B10DA B191C B00C5 B105C B128D B1272 B2162 B2691 B1849 B2845 B3382 B128F B1B88 B1079 B2769 OBDII Chassis Codes
C1157 C0035 C2807 C1A37 C1440 C0611 B00C0 C1496 C0357 C1755 C1837 C1833 C1868 C1520 C1516 OBDII Network Codes
U059A U0142 U1037 U2520 U0079 U1231 U1017 U2473 U0187 U1050 U0335 U0289 U1A00 U0237 U0414 OBDII Powertrain Codes
P127A P2610 P0C2C P2426 P06C9 P2716 P0C1F P173B P3013 P0996 P0A3F P1912 P268A P2654 P2652