P3400 Diagnostic Trouble Code Discussion for February 2020
Cylinder Deactivation System Performance
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC P3400
| Help Request | Posted | |
| 2007 Chrysler 300 C 5.7L MIL Lamp on VIN: 2C3LA63HX7 P3400: MDS Rationality - Bank 1. ... Cleared, was told Check Engine Light Reoccurred after short Trip. Prior to getting to Shop customer reported Low Oil Pressure. I picked up. Again I Retrieved Code P3425 and Oil Pressure Code P0520, Gauge was at 0 Press... |
February 03, 2020 | |
| 2015 Honda Odyssey EX-L 3.5L MIL Lamp on VIN: 5FNRL5H6XF P3400: means that the powertrain control module PCM has detected an abnormality in the cylinder deactivation system for engine bank one. We have this for a P3400 code. No real driving issues. Cleared the code and performed the VPS test. We get a failed test and see a VCMB1-3 and VCMB2-4. Performed all the tests and decided we needed new oil pressure switches. Replaced and re-ran test and st... |
February 05, 2020 | |
| 2007 Chrysler 300 C 5.7L MIL Lamp on VIN: 2C3LA63HX7 P3400: MDS Rationality - Bank 1. ... Light Reoccurred after short Trip. Prior to getting to Shop customer reported Low Oil Pressure. I picked up. Again I Retrieved Code P3425 and Oil Pressure Code P0520, Gauge was at 0 Pressure for a short time and then to ... |
February 17, 2020 |
