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 1500FACTORY OEM SERVICE PROCEDURE
Module, Tire Pressure (TPM)
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| C1001-21 | LEFT FRONT SENSOR - INTERNAL BATTERY LOW |
| C1001-31 | LEFT FRONT SENSOR - NO SIGNAL |
| C1001-96 | LEFT FRONT SENSOR - COMPONENT INTERNAL FAILURE |
| C1001-98 | LEFT FRONT SENSOR - OVER TEMPERATURE |
| C1002-21 | RIGHT FRONT SENSOR - INTERNAL BATTERY LOW |
| C1002-31 | RIGHT FRONT SENSOR - NO SIGNAL |
| C1002-96 | RIGHT FRONT SENSOR - COMPONENT INTERNAL FAILURE |
| C1002-98 | RIGHT FRONT SENSOR - OVER TEMPERATURE |
| C1003-21 | LEFT REAR SENSOR - INTERNAL BATTERY LOW |
| C1003-31 | LEFT REAR SENSOR - NO SIGNAL |
| C1003-96 | LEFT REAR SENSOR - COMPONENT INTERNAL FAILURE |
| C1003-98 | LEFT REAR SENSOR - OVER TEMPERATURE |
| C1004-21 | RIGHT REAR SENSOR - INTERNAL BATTERY LOW |
| C1004-31 | RIGHT REAR SENSOR - NO SIGNAL |
| C1004-96 | RIGHT REAR SENSOR - COMPONENT INTERNAL FAILURE |
| C1004-98 | RIGHT REAR SENSOR - OVER TEMPERATURE |
| C1005-21 | SPARE SENSOR - INTERNAL BATTERY LOW |
| C1005-31 | SPARE SENSOR - NO SIGNAL |
| C1005-96 | SPARE SENSOR - COMPONENT INTERNAL FAILURE |
| C1005-98 | SPARE SENSOR - OVER TEMPERATURE |
| C1007-31 | RECEIVER - NO SIGNAL |
| C1009-42 | TPM - GENERAL MEMORY FAILURE |
| C1009-49 | TPM - INTERNAL ELECTRONIC FAILURE |
| C1010-54 | TPM SENSOR - MISSING CALIBRATION |
| C1011-29 | SIGNAL INTERFERENCE - SIGNAL INVALID |
| C1012-88 | TPM SENSOR LOCATION UNDETERMINED - BUS OFF |
| C1013-88 | DUPLICATE TIRE PRESSURE SENSOR IDS |
| C1014-88 | LEFT/RIGHT SIDE TIRE PRESSURE SENSOR LOCATION UNDETERMINED |
| C1015-88 | FRONT/REAR TIRE PRESSURE SENSOR LOCATION UNDETERMINED |
| C1016-88 | TPM SYSTEM DEACTIVATED - WINTER MODE |
| U0019-87 | B CAN - MISSING MESSAGE |
| U0019-88 | CAN B BUS OFF |
| U1700-86 | IMPLAUSIBLE DATA RECEIVED FROM BCM |
| U1700-87 | LOST COMMUNICATION WITH BCM |
| U1703-86 | IMPLAUSIBLE DATA RECEIVED FROM IPC |
| U1703-87 | LOST COMMUNICATION WITH IPC |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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