Service bulletin 18-071-20
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10180282 |
| Published by NHTSA | 2020-09-28 |
| Manufacturer's number | 18-071-20 |
| Manufacturer's date | 2020-08-28 |
| NHTSA component | ELECTRICAL SYSTEM; EQUIPMENT; POWER TRAIN |
NHTSA's summary
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with updated software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) set in the PCM memory:U1424-00 - Implausible Engine Torque Signal Received. In addition, the customer may notice:An unpleasant odor in the vehicle under certain extreme ambient conditions(LD vehicles with Sales Codes EZH with Police Group (Sales Code AHB) or Special Service Group (Sales Code AHV)). The following software enhancements are also available:Reverse gear lock-out change from 16 kph (10 mph) to 4.8 kph (3 mph)(Sales Code EZC with DEC). Change to purge vapor control calibration(Sales Code EZH with DGJ). Oxygen sensor (O2) feedback control changes to improve 3rd gear tip in oscillation at high load(Sales Code EZH with DFK). Calibration update to allow the throttle body to be cycled while the engine is off, for diagnostic purposes. Improved transmission shifting during a limp mode.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Electrical system, Equipment and accessories, Transmission and driveline
Trouble codes named
U1424
| CHRYSLER 300 | 2017 |
|---|---|
| DODGE CHALLENGER | 2017 |
| DODGE CHARGER | 2017 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 18V332000 | 2018-05-17. ELECTRICAL SYSTEM:SOFTWARE; VEHICLE SPEED CONTROL:CRUISE CONTROL; ELECTRICAL SYSTEM:WIRING |
|---|---|
| 2018219 | 2018-05-01. Powertrain |
| 18V281000 | 2018-05-01. POWER TRAIN:DRIVELINE:DRIVESHAFT |
| 2017335 | 2017-07-07. Powertrain |
| 17V431000 | 2017-07-07. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM) |
| 2017081 | 2017-02-15. Powertrain |
| 17V097000 | 2017-02-14. POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
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|---|---|
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