CAR OBD CODES
OBD/DTC Search, e.g.P0389
CAR OBD CODES P0389
P0389 OBD Code Definition:
P0389 Crankshaft Position Sensor B Circuit Intermittent
P0389 OBD Code Description:
OBD2 Code P0389 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 P0389
– Engine Light ON (or Service Engine Soon Warning Light)
Possible Causes
Possible causes of P0389
– 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 P0389 error code is purely informative, if you need more useful information, please consult your technician.
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U2015 U1011 U1261 U1118 U1068 U1223 U2605 U1798 U051A U0535 U0212 U1243 U0407 U017F U0023 OBDII Powertrain Codes
P2757 P1379 P02B5 P1458 P1619 P1098 P3465 P1123 P2057 P0185 P0203 P0093 P0579 P254A P2756