OBD Guide

B1307

Oil Level Switch Circuit Short To Battery

B1307 is an OBD-II diagnostic trouble code meaning: Oil Level Switch Circuit Short To Battery. Common causes: damage to the insulation of the oil level sensor circuit wire, oil level sensor malfunction. Estimated repair cost: $22–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–89 (est.)

Symptoms

  • Low oil level warning light is on
  • Incorrect oil level readings on the dashboard
  • Possible problems starting the engine
  • Activating emergency engine operation

Causes

  • Damage to the insulation of the oil level sensor circuit wire
  • Oil level sensor malfunction
  • Short circuit in wiring harness
  • Problems with contacts in connectors
  • Engine control unit malfunction

How to Fix

  1. Visual inspection of the oil level sensor wiring harness and connectors
  2. Checking the resistance of the oil level sensor
  3. Checking the continuity of the circuit between the sensor and the control unit
  4. Replacing damaged wires or connectors
  5. Replacing the oil level sensor if necessary
  6. Resetting the error and checking the system operation

Related codes

FAQ

What does the B1307 code mean?

B1307 is an OBD-II diagnostic trouble code that indicates: Oil Level Switch Circuit Short To Battery

What causes a B1307 error code?

The most common causes of B1307 include: Damage to the insulation of the oil level sensor circuit wire; Oil level sensor malfunction; Short circuit in wiring harness; Problems with contacts in connectors.

How do I fix a B1307 diagnostic trouble code?

To fix B1307: Visual inspection of the oil level sensor wiring harness and connectors. Checking the resistance of the oil level sensor. Checking the continuity of the circuit between the sensor and the control unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1307?

Limited driving only, diagnose soon

How much does it cost to fix B1307?

The estimated repair cost for B1307 is $22–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat