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ProMaster 2500
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Repair and Diagnosis
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Accessories & Equipment
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Infotainment
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Global Telematics Box Module- DTCS B1569-15 To U3033-00
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DTC Troubleshooting
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B1E21-96-Backup Battery-Component Internal Failure
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When Monitored
When Monitored
This diagnostic runs
Battery voltage between 9.0-16.0 volts.
The Global Telematics Box Module (TBM2) is configured correctly.