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OBD II Fault Code

  • OBD II P07B4

OBD-II Code Transmission may not shift out of park is defined as a Transmission Park Position Sensor/Switch "A" Circuit High

The Transmission Park Position Sensor tells the engine control module (PCM) that the vehicle is in park. When the PCM detects an incorrect signal from the Transmission Park Position Sensor, the PCM will set code P07B4.

Transmission may not shift out of park Symptoms

  • Transmission may not shift out of park

Common Problems That Trigger the P07B4 Code

  • Powertrain Control Module (PCM) failure
  • Transmission park position sensor failure
  • Wiring issue
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