OBD Guide
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B1308

Oil Level Switch Circuit Short To Ground

B1308 is an OBD-II diagnostic trouble code meaning: Oil Level Switch Circuit Short To Ground. Common causes: wiring harness damage, oil level sensor malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Incorrect oil level readings on the dashboard
  • Check Engine Light Is On
  • False low oil warnings

Causes

  • Wiring harness damage
  • Oil level sensor malfunction
  • Short circuit in the circuit
  • Poor contact in the sensor connector

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the oil level sensor for functionality
  3. Inspect connectors and contacts for oxides and damage
  4. If necessary, replace the sensor or repair the wiring harness

Related codes

B1309B1310

FAQ

What does the B1308 code mean?

B1308 is an OBD-II diagnostic trouble code that indicates: Oil Level Switch Circuit Short To Ground

What causes a B1308 error code?

The most common causes of B1308 include: Wiring harness damage; Oil level sensor malfunction; Short circuit in the circuit; Poor contact in the sensor connector.

How do I fix a B1308 diagnostic trouble code?

To fix B1308: Check the integrity of the wiring harness. Check the oil level sensor for functionality. Inspect connectors and contacts for oxides and damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1308?

Limited driving only, diagnose soon

How much does it cost to fix B1308?

The estimated repair cost for B1308 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat