OBD Guide
ENFRDEESPT

B1620

Wiper Rear Low Limit Input Circuit Open

B1620 is an OBD-II diagnostic trouble code meaning: Wiper Rear Low Limit Input Circuit Open. Common causes: broken wiring harness, oxidation of contacts. Estimated repair cost: $22–56.

Severity
✅ Low
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–56 (est.)

Symptoms

  • Rear wiper does not work
  • Intermittent wiper operation
  • Error on the dashboard

Causes

  • Broken wiring harness
  • Oxidation of contacts
  • Relay fault
  • Wiper motor damage

How to Fix

  1. Check wiring harness for damage
  2. Clear contacts
  3. Check wiper relay
  4. Replace wiper motor if necessary

Related codes

B1621B1622

FAQ

What does the B1620 code mean?

B1620 is an OBD-II diagnostic trouble code that indicates: Wiper Rear Low Limit Input Circuit Open

What causes a B1620 error code?

The most common causes of B1620 include: Broken wiring harness; Oxidation of contacts; Relay fault; Wiper motor damage.

How do I fix a B1620 diagnostic trouble code?

To fix B1620: Check wiring harness for damage. Clear contacts. Check wiper relay. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1620?

Limited driving only, diagnose soon

How much does it cost to fix B1620?

The estimated repair cost for B1620 is $22–56. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat