Engine-Codes - Generic - U1402

U1402 - Implausible Engine Temperature Signal Received

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

U1402 Possible Causes

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

How is the U1402 code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the U1402 code

Labor: 1.0

The cost to diagnose the U1402 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
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Possible Symptoms

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

U1402 Meaning

The Diagnostic Trouble Code (DTC) sets when the Transmission Control Module (TCM) receives a Signal Not Available (SNA) message from the Powertrain Control Module (PCM) or an incorrect Controller Area Network (CAN) message from the PCM.

More Information

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Information for specific makes

  • U1402 CHRYSLER Implausible Engine Temperature Signal Received
  • U1402 DODGE Implausible Engine Temperature Signal Received
  • U1402 JEEP Implausible Engine Temperature Signal Received
  • U1402 RAM Implausible Engine Temperature Signal Received

Need more help?

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