U1149 - Lost Communication With Multi-Function Switch
- Faulty Left Multifunction Switch
- Left Multifunction Switch harness is open or shorted
- Left Multifunction Switch circuit poor electrical connection
- Engine Light ON (or Service Engine Soon Warning Light)
U1149 DescriptionThe 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.
U1149 Information for specific makes
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