Home18-110-20 · JEEP
JEEP

18-110-20

Manufacturer communications

Publication date
2020-12-11
Received by NHTSA
2021-03-01
NHTSA record numbers
10187704

Manufacturer summary

Original wording in English

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with thelatest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following Diagnostic Trouble Codes (DTCs): U1504 - Implausible Message Data Length Received From Steering Angle Sensor. P1185 - General Pressure Sensor Correlation. U1424-00 - Implausible Engine Torque Signal Received. P0101 - Mass Air Flow Sensor "A" Circuit Performance. P0128 - Thermostat Rationality. P0300 - Multiple Cylinder Misfire. P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. Some customers may also experience the following condition: Extended engine crank times or possibly a no start condition(South Korea only). During an engine limp mode condition, the transmission remains in a fixedgear.

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Reported code forms

Manufacturer wording

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

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MakeModelModel year
JeepCHEROKEE2017

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