What to do if OBD fails the test?
1 Answers
If the OBD fails the test, you should go to a 4S shop to upgrade the vehicle system. OBD refers to the on-board diagnostic system test. The reasons for OBD failure are: 1. The OBD system is outdated; 2. The sensors of the OBD system are malfunctioning; 3. The car engine has a fault. Methods to reduce OBD failure include: 1. Refuel at regular gas stations and use the fuel grade specified by the manufacturer; 2. For diesel vehicles equipped with selective catalytic reduction devices, use qualified urea produced by regular manufacturers; 3. When the OBD light is on, promptly go to a 4S shop for maintenance; 4. Use the vehicle normally without overloading or exceeding limits; 5. Do not privately modify, shield, or dismantle the pollution control devices of the OBD system.