19NA220
Service Bulletin Details
Public Details for: 19NA220
This technical bulletin provides a procedure to inspect and possibly replace the engine wiring harness if found damaged near the x2 connector to correct a loss of propulsion, mil illuminated w/dtcs.
Models from 2020
2020 CHEVROLET BOLT EV |
Models from 2019
2019 CHEVROLET BOLT EV |
Models from 2018
2018 CHEVROLET BOLT EV |
Models from 2017
2017 CHEVROLET BOLT EV |
Bulletin No.: Service Bulletin Date: 19-NA-220 February, 2020 TECHNICAL Subject: Loss of Propulsion, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0A3F and/or P1B03 Set This bulletin replaces PIP5641D. Please discard PIP5641D. Brand: Model: Chevrolet Bolt EV Model Year: VIN: from to 2017 2020 Involved Region or Country from to Engine: Transmission: All All North America, Middle East, South Korea, Brazil Some customers may comment that a loss of propulsion was experienced. ⇒ The vehicle may operate normally after the vehicle is restarted at a later time. History code P0A3F and sometimes P1B03 may set. Condition Cause Correction Copyright 2020 General Motors LLC. All Rights Reserved. Some technicians may find one or both of the following DTCs set in the Hybrid/EV Powertrain Control Module: • P0A3F • P1B03 This condition may be caused by a spread terminal on the vehicle harness connection X2 on the T12 transmission assembly. ⇒ The terminals may not have been perfectly aligned during installation at the vehicle assembly plant. Replace the Engine Harness. Due to the sensitivity of resolver (motor position sensor) circuits, replacing the connector with a terminated lead is not permitted per SI document ID 4583435. These diagnostic codes result in a loss of propulsion event on the vehicle. Exercise care when connecting the new harness to X2 on the transmission by aligning the connector bodies and not attempt to install at an angle. Page 2 February, 2020 Bulletin No.: 19-NA-220 Connector Examples 5409321 5518453 Ensure that the connector is fully seated. Example case of damaged terminals. Terminals do not need to have visible damage to set DTCs P0A3F and P1B03. Parts Information Causal Part Description Part Number Qty X Engine Harness with RPO CBT (DC Fast Charge capable) 42694828 1 X Engine Harness without RPO CBT 42694829 1 Warranty Information For vehicles repaired under the Voltec (V) coverage, use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information. 5409322 Showing both proper and improper alignment of the X2 connector. Labor Operation 5430940 Description Labor Time Engine Wiring Harness Replacement Use Published Labor Operation Time Bulletin No.: 19-NA-220 February, 2020 Page 3 Version 2 Modified Released February 4, 2020 February 17, 2020 – Added the 2020 Model Year, removed the VIN breakpoint, added Brazil to the Involved Region or Country section and added an additional comparison graphic. GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION