OBD Guide
ENFRDEESPT

B1502

Lamp Turn Signal Left Circuit Short To Ground

B1502 is an OBD-II diagnostic trouble code meaning: Lamp Turn Signal Left Circuit Short To Ground. Common causes: damage to left turn signal wiring harness, turn signal relay malfunction. Estimated repair cost: $11–56.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$11–56 (est.)

Symptoms

  • Left turn signal does not work
  • Flashing of indicators with increased frequency
  • Alarm alarm when the indicator is turned on
  • Illuminated malfunction indicator light on the dashboard

Causes

  • Damage to left turn signal wiring harness
  • Turn signal relay malfunction
  • Short circuit in the control unit
  • Damage to the contacts in the lamp socket
  • Corrosion in circuit connectors

How to Fix

  1. Check the integrity of the left turn signal wiring harness
  2. Make sure the lamp and socket are in good condition
  3. Check turn signal relay
  4. Inspect connectors and contacts for corrosion
  5. Replace damaged components if necessary

Related codes

B1500B1501B1503

FAQ

What does the B1502 code mean?

B1502 is an OBD-II diagnostic trouble code that indicates: Lamp Turn Signal Left Circuit Short To Ground

What causes a B1502 error code?

The most common causes of B1502 include: Damage to left turn signal wiring harness; Turn signal relay malfunction; Short circuit in the control unit; Damage to the contacts in the lamp socket.

How do I fix a B1502 diagnostic trouble code?

To fix B1502: Check the integrity of the left turn signal wiring harness. Make sure the lamp and socket are in good condition. Check turn signal relay. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1502?

Do not drive — repair immediately

How much does it cost to fix B1502?

The estimated repair cost for B1502 is $11–56. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat