What does reading scan tool data for car repair?
What does reading scan tool data for car repair?
If the coolant temperature and voltage remains at a fixed value, yet the vehicle continues to warm up, you may have a dead coolant temperature sensor or bad wiring between the sensor and the computer. Reading scan tool data gives you insight on what the failure might be.
When did the first OBD scanner come out?
Vehicle monitoring systems – known as On-Board Diagnostics (OBD) – have grown more elaborate and sophisticated over the years. Introduced in the early 1980s, the first OBD readers were vehicle- or manufacturer-specific and provided limited data.
What can you do with a scan tool?
On modern vehicles you will often use a scan tool to bleed the brakes, perform and alignment, repair a power window, change the tires, or even change the oil.
When to use an OBD II scan tool?
This can not only point you in the right direction, but is also considered by many professional technicians as the first step in a logical path of diagnosis. When a check engine light comes on you should connect an OBD II scan tool and hit the read button.
If the coolant temperature and voltage remains at a fixed value, yet the vehicle continues to warm up, you may have a dead coolant temperature sensor or bad wiring between the sensor and the computer. Reading scan tool data gives you insight on what the failure might be.
Can a scan tool be upgraded to read faster?
Most older scan tools that were manufactured before CAN came along do not have the hardware capabilities to read the faster data and cannot be upgraded. Regardless of what type of code reader or scan tool is used to read codes, an important point to remember is that a code by itself is not a diagnosis.
Can a scan tool turn off the Check Engine light?
Most code readers and scan tools can do just that. Pressing a button wipes the codes from the computer’s memory and turns off the “Check Engine” light. But as soon as the vehicle is driven, the code may reset and the “Check Engine” light may come back on depending on the nature of the problem. That’s where the readiness status comes in.
On modern vehicles you will often use a scan tool to bleed the brakes, perform and alignment, repair a power window, change the tires, or even change the oil.
