P0420 · Manufacturer communications
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
AUDI
Reported code forms P042000
Noise from front door trim panel while driving Air suspension warning - DTC P089200 charge handle doesn't release vehicle will not charge Corrosion on wheelhouse cover plate P008700 - low fuel pressure P042000: Catalyst…
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AUDI
Reported code forms P042000
Noise from front door trim panel while driving Air suspension warning - DTC P089200 charge handle doesn't release vehicle will not charge Corrosion on wheelhouse cover plate P008700 - low fuel pressure P042000: Catalyst…
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AUDI
Reported code forms P042000
Noise from front door trim panel while driving Low coolant warning in cluster, coolant level is correct Front window inoperative Air suspension warning - DTC P089200 charge handle doesn't release vehicle will not charge…
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AUDI
Reported code forms P042000
Noise from front door trim panel while driving Noise from front door trim panel while driving Low coolant warning in cluster, coolant level is correct Check engine lamp is on, DTC (s) P010600, P023600, P023700, P023800…
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AUDI
Reported code forms P042000
Noise from front door trim panel while driving Noise from front door trim panel while driving Low coolant warning in cluster, coolant level is correct Check engine lamp is on, DTC (s) P010600, P023600, P023700, P023800…
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AUDI
Reported code forms P042000
3.0L engine sound generator malfunctioning Air suspension warning - DTC P089200 charge handle doesn't release Check engine lamp is on, DTC (s) P010600, P023600, P023700, P023800 "Check engine lamp on, DTC P042000:…
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AUDI
Reported code forms P042000
Noise from front door trim panel while driving Low coolant warning in cluster, coolant level is correct Check engine lamp is on, DTC (s) P010600, P023600, P023700, P023800 Leak from oil pan USB Trim detached from center…
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AUDI
Reported code forms P042000
3.0L engine sound generator malfunctioning Belt noise from starter generator Check engine lamp - DTC P240200 stored in ECM Check engine lamp is on, DTC (s) P010600, P023600, P023700, P023800 "Check engine lamp on, DTC…
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AUDI
Reported code forms P042000
This bulletin provides information regarding a software update for DTC P042000 and/or P043000.
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AUDI
Reported code forms P042000
TSBs in this newsletters include the MIL on due to DTC P042000 and/or P043000 (Catalyst system Bank 1/2, Efficiency below threshold) being stored in the ECM. New ECM software implemented to correct the condition.
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AUDI
Reported code forms P042000
The MIL is on due to DTC P042000 and/or P043000 (Catalyst system Bank 1/2, Efficiency below threshold) being stored in the engine control module (ECM), J623 (address word 01). The diagnostic limitations were too narrow.…
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AUDI
Reported code forms P042000
Supersedes Technical Service Bulletin Group 01 number 15-26 dated June 30, 2015. The MIL is on. DTC P042000 and/or P043000 (Catalyst system Bank 1/2, Efficiency below threshold) is stored in the engine control module…
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AUDI
Reported code forms P042000
The MIL is on. DTC P042000 and/or P043000 (Catalyst system Bank 1/2, Efficiency below threshold) is stored in the engine control module (ECM), J623 (address word 01). The diagnostic limitations were too narrow.
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