B1874 Engine Error Code
When you check engine light came on code B1874 the reason should be . However your vehicle's manufacturer may have a different definition for the B1874 OBD-II Diagnostic Body (B) Trouble Code. So you should chech it on your car models.
Reason For B1874
B1874 OBD2 may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.
B1874 OBD-II Diagnostic Body (B) Trouble Code DescriptionB1874 Cellular Phone Handset Not Present so you have to check ODB-II Engine Error Code list.
B1874 Code Review :The reason of B1874 OBD-II Engine Error Code is B1874 Cellular Phone Handset Not Present.
How To Recognise B1874
It may not be obvious when driving that your car's tyres are unevenly worn, but worn tyres can be dangerous due to their reduced grip on the road. A quick check will tell you if your tyres are worn unevenly. The easiest way is to jack up your car and inspect each tyre individually, noting whether there are any bald spots on the inside or outside of the tyre, or whether there are any dips and dents in the tyre tread.