U1149 - Lost Communication With Multi-Function Switch

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

  • Faulty Left Multifunction Switch
  • Left Multifunction Switch harness is open or shorted
  • Left Multifunction Switch circuit poor electrical connection

Possible symptoms

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

U1149 Description

The Powertrain Control Module (PCM) monitors the Multi-Function Switch. The PCM sets the OBDII code when the Multi-Function Switch is not to factory specifications or the Cluster does not receive any LIN Bus messages from the Left Multifunction Switch.
OBDII Code U1149 - Lost Communication With Multi-Function Switch - AutoCodes.com

U1149 Information for specific makes

  • U1149 CHRYSLER Lost Communication With Multi-Function Switch
  • U1149 DODGE Lost Communication With Multi-Function Switch
  • U1149 JEEP Lost Communication With Multi-Function Switch

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Related Information

U1149 Comments

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