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OBD II Fault Code

  • OBD II P0737

OBD-II Code Transmission may not shift properly is defined as a TCM Engine Speed Output Circuit

The Engine Speed Sensor tells the Transmission Control Module (TCM) how fast the engine is spinning so the correct gear can be engaged. When the TCM receives an inaccurate signal from this sensor, it can't properly shift the vehicle from gear to gear as the vehicle needs to change speed and rates of acceleration. Most vehicles use the crankshaft position sensor for this information. The engine control module (PCM) or TCM will set code P0737.

Transmission may not shift properly Symptoms

  • Increased fuel consumption
  • Transmission may not shift properly

Common Problems That Trigger the P0737 Code

  • Crankshaft Position Sensor (CKP) failure
  • Powertrain Control Module (PCM) failure
  • Transmission Control Module (TCM) failure
  • Wiring issue

Common Repairs Needed for the P0737 Code

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