OBD Guide

B122C

PTS Sensor 7 Circuit Low

B122C is an OBD-II diagnostic trouble code meaning: PTS Sensor 7 Circuit Low. Common causes: open or short circuit in pts 7 sensor wiring harness, pts 7 sensor malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine light comes on
  • There may be problems with the operation of systems related to the PTS 7 sensor, such as the airbag or seat adjustment

Causes

  • Open or short circuit in PTS 7 sensor wiring harness
  • PTS 7 sensor malfunction
  • Poor contact in the sensor connector
  • Control unit malfunction

How to Fix

  1. Check the integrity of the PTS 7 sensor wiring harness
  2. Check the voltage and resistance of the PTS 7 sensor
  3. Clean or replace sensor connector if necessary
  4. Replace the PTS 7 sensor if it is faulty
  5. Check the control unit for errors

Related codes

FAQ

What does the B122C code mean?

B122C is an OBD-II diagnostic trouble code that indicates: PTS Sensor 7 Circuit Low

What causes a B122C error code?

The most common causes of B122C include: Open or short circuit in PTS 7 sensor wiring harness; PTS 7 sensor malfunction; Poor contact in the sensor connector; Control unit malfunction.

How do I fix a B122C diagnostic trouble code?

To fix B122C: Check the integrity of the PTS 7 sensor wiring harness. Check the voltage and resistance of the PTS 7 sensor. Clean or replace sensor connector if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B122C?

Do not drive — repair immediately

How much does it cost to fix B122C?

The estimated repair cost for B122C is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat