Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Dodge and Ram ProMaster 2500FACTORY OEM SERVICE PROCEDURE
Cluster, Instrument
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| B1000-44 | ELECTRONIC CONTROL UNIT - DATA MEMORY FAILURE |
| B1000-45 | ELECTRONIC CONTROL UNIT - PROGRAM MEMORY FAILURE |
| B1000-46 | ELECTRONIC CONTROL UNIT - CALIBRATION/PARAMETER MEMORY FAILURE |
| B1000-47 | ELECTRONIC CONTROL UNIT - WATCHDOG/SAFETY ΞΌC FAILURE |
| B1900-01 | SECURE WARNING LAMPS - GENERAL ELECTRICAL FAILURE |
| U0019-87 | B CAN-MISSING MESSAGE |
| U0019-88 | B CAN-BUS OFF |
| U1700-86 | BCM BODY COMPUTER MODULE - SIGNAL INVALID |
| U1700-87 | BCM BODY COMPUTER MODULE - MISSING MESSAGE |
| U1701-86 | ECM ENGINE CONTROL MODULE - SIGNAL INVALID |
| U1701-87 | ECM ENGINE CONTROL MODULE - MISSING MESSAGE |
| U1706-86 | BSM BRAKING SYSTEM MODULE - SIGNAL INVALID |
| U1706-87 | BSM (BRAKING SYSTEM MODULE)-MISSING MESSAGE |
| U1711-86 | TCM/MTA-SIGNAL INVALID |
| U1711-87 | TCM/MTA - MISSING MESSAGE |
| U1724-86 | PAM PARKING AID MODULE - SIGNAL INVALID |
| U1724-87 | PAM PARKING AID MODULE - MISSING MESSAGE |
| U1726-86 | SDM SENSING AND DIAGNOSTIC MODULE - SIGNAL INVALID |
| U1726-87 | SDM SENSING AND DIAGNOSTIC MODULE - MISSING MESSAGE |
| U1732-86 | TPM TYRE PRESSURE MODULE - SIGNAL INVALID |
| U1732-87 | TPM TYRE PRESSURE MODULE - MISSING MESSAGE |
| U1733-86 | CTM CONVERGENCE TELEMATIC MODULE - SIGNAL INVALID |
| U1733-87 | CTM CONVERGENCE TELEMATIC MODULE - MISSING MESSAGE |
| U1736-86 | LTM LOW LEVEL TELEMATIC MODULE - SIGNAL INVALID |
| U1736-87 | LTM LOW LEVEL TELEMATIC MODULE - MISSING MESSAGE |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.