U0101 JEEP - Transmission Bus Message

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

  • Faulty Transmission Control Module (TCM)
  • Faulty Powertrain Control Module (PCM)
  • TCM harness is open or shorted
  • TCM circuit poor electrical connection

Possible symptoms

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

U0101 Jeep Description

The Powertrain Control Module (PCM) monitors the Transmission Control Module (TCM). The PCM sets the OBDII code when the communication to the Transmission Control Module (TCM) is not to factory specifications.
OBDII Code U0101 Jeep - Transmission Bus Message - AutoCodes.com

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U0101 JEEP Comments

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