Fuse

Obd2 not working, need to rewire

Obd2 not working, need to rewire
  • 1612
  • Gerard Morrison
  1. Why is my OBD2 sensor not working?
  2. Why is my OBD not connecting?
  3. Does OBD2 have a fuse?
  4. How do you fix OBD communication failure?
  5. Which fuse controls check engine light?
  6. What cars are compatible with OBD2?
  7. Can you use a code reader on a car that won't start?
  8. Can a blown fuse cause check engine light to come on?
  9. How can you tell when a fuse is bad?

Why is my OBD2 sensor not working?

The most common reason for getting no OBD code is simply a blown fuse. ... Even a fuse dedicated solely to the car's computer diagnostics can blow for no apparent reason. Check your fuses to see if any have gone bad. Remember that your car or truck might have more than one fuse box.

Why is my OBD not connecting?

Examine your scan tool plug and check the pins. ... Check for corrosion or debris in the plug. Check the cable itself for damage, and check the plug at the scanner too. Finding a problem with the plug or cable is easy to fix, most good scanners will have a detachable and therefore replaceable OBD cable.

Does OBD2 have a fuse?

Usually there is a fuse for the OBD port, if you cannot find they the fuse for the cigarette lighter and the auxiliary ports. Click to see full answer.

How do you fix OBD communication failure?

o Check your vehicle's cigarette lighter fuse and replace it if it is blown. o Check the wiring on any installed aftermarket system should be checked to ensure there is no interference with the on-board diagnostic (OBD) computer or the battery. o Contact your dealership or repair facility and have a diagnostic analysis ...

Which fuse controls check engine light?

The fuse that reins the check engine light is akin to the small yellow box-like item situated on the lower-left corner, with two 10mm fuses. It's a double fuse on the fuse box beneath the dash and reads ROOM/PLAFON.

What cars are compatible with OBD2?

Information

Can you use a code reader on a car that won't start?

If the car is cranking, but won't start, use an OBD2 scanner to find out if there are any stored trouble codes in the trouble code memory. By reading the trouble codes, you can skip over a lot of the troubleshooting steps and jump directly to troubleshooting the part that you got the trouble code for.

Can a blown fuse cause check engine light to come on?

Yes , it is entirely possible for a fuse to cause a check engine light. ... If that fuse were blown, then all components serviced by that fuse would not function. Even after locating the blown fuse , we're not done yet. The cause of the blown fuse needs to be found.

How can you tell when a fuse is bad?

In some cases you may need a small screwdriver to unscrew the fuse holder cap. Look at the fuse wire. If there is a visible gap in the wire or a dark or metallic smear inside the glass then the fuse is blown and needs to be replaced. If you cannot see whether the fuse is blown, follow steps 4 and 5.

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