P1775 - Transmission System MIL Fault

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • No data exchange between ECM and TCM because of internal fault in the switch
  • Faulty Crank sensor

Tech notes

Remove the EGR valve (just two bolts and a electrical connector) and see if the pintle valve is stuck and carboned up. It should move freely when pushing it in. If it is hanging up and doesn't close properly this could be the problem.

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1775 Description

The P1775 code is set on the Transmission Control Module (TCM) when the engine stalls.
OBDII Code P1775 - Transmission System MIL Fault - AutoCodes.com

P1775 Information for specific makes

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P1775 Comments

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