RAM

1806417

Manufacturer communications

Publication date: 2017-08-25
Received by NHTSA: 2022-10-24
NHTSA record numbers: 10224759

Manufacturer summary

Original wording in English

Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following DTCs has been set:U1424 - Implausible Engine Torque Signal Received. U0402 - Implausible Data Received From TCM. P1DD2-00 - Torque Request Signal From TCM Denied. P0128 - Thermostat Rationality. Enhancement also included:Improved calibrations for catalyst overtemp protection.

NHTSA manufacturer communications ↗

Reported code forms

P0128 P1DD2 U0402 U1424

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

RamP1DD2-00

Torque Request Signal From TCM Denied

NHTSA 10121782 · NHTSA 10224759

RamU0402

Implausible Data Received From TCM

NHTSA 10121782 · NHTSA 10149683 · NHTSA 10214603

RamU1424

Implausible Engine Torque Signal Received

NHTSA 10121782 · NHTSA 10224759

Check vehicle applicability

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Make	Model	Model year
Ram	PROMASTER CITY	2017

Data coverage →