Flash: Amplifier (AMP) Diagnostic and System Updates Customers must experience a Malfunction Indicator...
Jeep technical service bulletin 08-317-25 for 2021 Jeep Grand Cherokee.
- Bulletin number
- 08-317-25
- Component
- Electrical system
- Summary
- Flash: Amplifier (AMP) Diagnostic and System Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● B143B-12 - ANC Microphone 1-Circuit Short To Battery. ● B143C-12 - ANC Microphone 2-Circuit Short To Battery. ● B143E-12 - ANC Microphone 3-Circuit Short To Battery. ● B143F-12 - ANC Microphone 4-Circuit Short To Battery. NOTE: The DTCs are wrongly set and do not affect Active Noise Cancellation (ANC) performance. This bulletin involves updating the AMP with the latest available software
Owners of these vehicles have filed 115 complaints in the electrical category.
Vehicles covered
- Jeep Grand Cherokee 2021 2021
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