OBD Guide
ENFRDEESPT

B127F

Ambient Lighting Zone 2 Output Green LED Circuit

B127F is an OBD-II diagnostic trouble code meaning: Ambient Lighting Zone 2 Output Green LED Circuit. Common causes: green led open circuit, led fault. Estimated repair cost: $22–167.

Severity
✅ Low
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$22–167 (est.)

Symptoms

  • Flashing or no green light in zone 2
  • The ambient lighting system is partially not working
  • Error on the dashboard

Causes

  • Green LED open circuit
  • LED fault
  • Wiring Harness Problems
  • Oxidation or poor contact
  • Control unit malfunction

How to Fix

  1. Diagnostics of a circuit using an error scanner
  2. Checking the integrity of the wiring harness
  3. LED testing
  4. Cleaning contacts
  5. Replacing the control unit if necessary

Related codes

B1270B1271B1272B1275

FAQ

What does the B127F code mean?

B127F is an OBD-II diagnostic trouble code that indicates: Ambient Lighting Zone 2 Output Green LED Circuit

What causes a B127F error code?

The most common causes of B127F include: Green LED open circuit; LED fault; Wiring Harness Problems; Oxidation or poor contact.

How do I fix a B127F diagnostic trouble code?

To fix B127F: Diagnostics of a circuit using an error scanner. Checking the integrity of the wiring harness. LED testing. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B127F?

Do not drive — repair immediately

How much does it cost to fix B127F?

The estimated repair cost for B127F is $22–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat