OBD Guide
ENFRDEESPT

B1377

Oil Change Lamp Circuit Failure

B1377 is an OBD-II diagnostic trouble code meaning: Oil Change Lamp Circuit Failure. Common causes: open or short circuit in wiring harness, indicator lamp failure. Estimated repair cost: $11–56.

Severity
✅ Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$11–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Oil change indicator does not work
  • The oil change indicator is constantly on

Causes

  • Open or short circuit in wiring harness
  • Indicator lamp failure
  • Problems with the control unit
  • Poor contact in connectors

How to Fix

  1. Check the status of the indicator lamp
  2. Check the integrity of the wiring harness
  3. Check connections and connectors
  4. Diagnose the control unit if necessary
  5. Replace damaged components

Related codes

B1378B1379

FAQ

What does the B1377 code mean?

B1377 is an OBD-II diagnostic trouble code that indicates: Oil Change Lamp Circuit Failure

What causes a B1377 error code?

The most common causes of B1377 include: Open or short circuit in wiring harness; Indicator lamp failure; Problems with the control unit; Poor contact in connectors.

How do I fix a B1377 diagnostic trouble code?

To fix B1377: Check the status of the indicator lamp. Check the integrity of the wiring harness. Check connections and connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1377?

Yes, but get it checked soon

How much does it cost to fix B1377?

The estimated repair cost for B1377 is $11–56. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat