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Home >> Dodge and Ram >> 2023 >> ProMaster 2500 >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Radio Frequency Module (RF Hub) - DTCS B1001-21 To B1045-01 >> DTC Troubleshooting >> B1021-12 Passive Entry Of Antenna 1 - Circuit Short To Battery >> Possible Causes

Possible Causes

Possible Causes
ANOTHER ANTENNA SIGNAL CIRCUIT MAY BE SHORTED TO GROUND, GENERAL FAILURE OR OPEN DTC
PASSIVE ENTRY ANTENNA 1 SIGNAL CIRCUIT SHORTED TO VOLTAGE
PASSIVE ENTRY ANTENNA 1 RETURN CIRCUIT SHORT TO VOLTAGE
RADIO FREQUENCY HUB (RF HUB) MODULE

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding  . Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

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