OBD Guide

P07BA

Transmission Park Position Sensor/Switch B Circuit High

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–67 (est.)

Symptoms

  • Check Engine Light Is On
  • Problems starting the engine (locked starter)
  • Incorrect display of selector position on the instrument panel
  • Transmission does not shift into park mode
  • The car may roll in the parking lot

Causes

  • Sensor circuit short circuit to power
  • Parking position sensor malfunction
  • Broken or damaged wiring
  • Problems with sensor connectors
  • Transmission control module (TCM) malfunction

How to Fix

  1. Check the integrity of the sensor wiring and connectors
  2. Measure resistance and voltage at the sensor
  3. Check the operation of the parking position sensor
  4. Replace the faulty sensor if necessary
  5. Scan the system for other errors

Related codes

Error P07BA by Vehicle Brand