OBD Guide
ENFRDEESPT

B12AE

Passenger Heated Seat Relay Drive Circuit Open Or Shorted to Ground

B12AE is an OBD-II diagnostic trouble code meaning: Passenger Heated Seat Relay Drive Circuit Open Or Shorted to Ground. Common causes: breakage of literatur wires in the relay circuit, short circuit to ground. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • Heated passenger seat does not work
  • The heating system fault indicator is on
  • Problems may occur with other comfort systems

Causes

  • Breakage of Literatur wires in the relay circuit
  • Short circuit to ground
  • Faulty heating relay
  • Problems in the body control module
  • Oxidation of contacts or connectors

How to Fix

  1. Check the integrity of the wiring harness to the relay
  2. Measure the circuit resistance to ground
  3. Check the functionality of the heating relay
  4. Inspect contacts and connectors for oxidation
  5. Replace relay or wiring harness if necessary

Related codes

B12AFB12ADB1095

FAQ

What does the B12AE code mean?

B12AE is an OBD-II diagnostic trouble code that indicates: Passenger Heated Seat Relay Drive Circuit Open Or Shorted to Ground

What causes a B12AE error code?

The most common causes of B12AE include: Breakage of Literatur wires in the relay circuit; Short circuit to ground; Faulty heating relay; Problems in the body control module.

How do I fix a B12AE diagnostic trouble code?

To fix B12AE: Check the integrity of the wiring harness to the relay. Measure the circuit resistance to ground. Check the functionality of the heating relay. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B12AE?

Yes, but get it checked soon

How much does it cost to fix B12AE?

The estimated repair cost for B12AE is $33–111. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat