AutoCodes - Ram - U142A RAM

U142A RAM Code - Implausible PRNDL Signal Received

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

|U142A RAM code possible causes

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

|How do I fix the U142A RAM code?

Check 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.

|Cost of diagnosing the U142A RAM code

Labor: 1.0

The cost of diagnosing the U142A RAM 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.

|What are U142A RAM code possible symptoms?

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

|U142A RAM code description

There are two qualifying states that the Occupant Restraint Control (ORC) Module uses to modify a Active Headrest (AHR) deployment. One is the PRNDL state signal over the CAN C Bus network. The other is the actual transmission gear state. The ORC utilizes multiple vehicle data bus network communication to support modification of the AHR when it is established the gear state is reverse. The PRNDL data (status and reverse gear state) shall be stored in the Event Data Recorder (EDR). This Diagnostic Trouble Code (DTC) will set disabling AHR activation only for the amount of time the transmission position indicates a reverse state. The supply voltage is 9 to 16 volts. Airbag warning light (AWL) will be illuminated due to no PRNDL message DTC. The PRNDL message is required by the ORC to disable the active headrests when in reverse. An active fault takes 6 seconds to set and indicates the message is not being received by the ORC. Receiving 2 valid PRNDL state and Reverse gear messages will change the fault to Stored. The AWL shall be on for a minimum of 12 seconds.
OBDII Code U142a Ram - Implausible PRNDL Signal Received - AutoCodes.com

|Need more information with the U142A RAM code?

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|U142A RAM code comments

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Repair Importance Level: 3
 
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