P0787

2017-10-10

Description:

  • The fault code P0787 indicates that there is an issue with the transmission shift system. This may cause the transmission to not shift gears properly or slip, leading to poor vehicle performance.

Possible Symptoms:

  • Difficulty shifting gears or slipping transmission

  • Illuminated check engine light

  • Poor acceleration or reduced vehicle power

  • Transmission may go into limp mode (stuck in one gear)

Possible Causes:

  • Faulty shift solenoid in the transmission

  • Malfunctioning transmission control module (TCM)

  • Low transmission fluid level or dirty fluid

  • Wiring or electrical issues in the transmission circuit

Related Parts:

  • Transmission Shift Sensor: Gear Shift Sensor communicates the position the gear shifted to. Problems lead to difficulty in shifting gears

Possible Solutions:

  • Replace the faulty shift solenoid

  • Repair or replace the malfunctioning TCM

  • Check and refill the transmission fluid, and replace if dirty

  • Inspect and repair any damaged wiring or electrical issues in the transmission circuit

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