Why wont my OBD2 read codes?

Why wont my OBD2 read codes?

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.

How do you reset Subaru error codes?

How to clear the fault codes on your Subaru including Legacy’s and Impreza’s

  1. Turn the ignition off.
  2. Find the diagnostic connectors.
  3. Connect the black connectors together.
  4. Turn the ignition on but don’t start it.
  5. Check the engine management light comes on.
  6. Count the number of flashes.

What is the best OBD2 scan tool to buy?

Comparison of the best OBD2 scanners in 2020

Brand Price
The best OBD2 scanner overall Innova $320
The best Bluetooth smartphone OBD2 scanner BlueDriver $100
The best OBD2 scanner if money is no object or if you’re a paid professional Bosch $4,490
The best leave-it-in-all-the-time OBD2 Bluetooth dongle FIXD $50

How do you read a diagnostic test on a car?

  1. How to read OBD codes: Preparation.
  2. Step 1: Plug the OBD scanner into the OBD port.
  3. Step 2: Turn on the ignition.
  4. Step 3: Enter the Vehicle Identification Number.
  5. Step 4: Find OBD codes in the menu.
  6. Step 5: Interpret the first character of the OBD code.
  7. Step 6: Interpret the second character of the OBD code.

Why is my OBD2 not working?

The most common cause of an OBD scanner that won’t turn on is a blown fuse on the vehicle’s OBD socket power supply circuit. If the check engine light fails to aluminate, you ca be sure the fuse has blown. Checking the vehicle’s fuse box and replacing the blown fuse fixes the issue.

What is the OBD code for a Subaru check engine?

Refer to our Generic OBD II code list for definitions on all other Subaru diagnostic trouble codes. Manufacturer Specific Codes P1086Tumble Generator Valve #2 (LH) Position Sensor Circuit Low Input P1087Tumble Generator Valve #2 (LH) Position Sensor Circuit High Input P1088Tumble Generator Valve #1 (RH) Position Sensor Circuit Low Input

What is the OBD code for a Subaru tumble generator?

Refer to our Generic OBD II code list for definitions on all other Subaru diagnostic trouble codes. P1086 Tumble Generator Valve #2 (LH) Position Sensor Circuit Low Input P1087 Tumble Generator Valve #2 (LH) Position Sensor Circuit High Input

Is there an OBD code for a Subaru imprenza legacy?

95 Imprenza and Legacy models have OBD2 systems and require a scanner,but some basic codes can be retreived using the flashing MIL method. Codes will only clear when the faulty system or circuit has been repaired.

Where do you find the trouble code on a Subaru Justy?

The long segment (1.2 sec on) indicates a “ten”, and the short segment (0.2 sec on) signifies a “one”. 90 models – Trouble codes on the Justy are viewed on the Oxygen Moniter light, all other models the codes can be viewed on either the Oxygen Moniter light or the MIL (check engine light).