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.
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HOMESERVICE MANUALSDODGE AND RAM2023PROMASTER 1500REPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXDTC INDEX (2 OF 2)MODULE, TRAILER TOW (TTM)
2023 Dodge and Ram ProMaster 1500
Module, Trailer Tow (TTM)
2023 Dodge and Ram ProMaster 1500SECTION Module, Trailer Tow (TTM)
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| B1000-96 | ELECTRONIC CONTROL UNIT - COMPONENT INTERNAL FAILURE |
| C1005-11 | TURN LEFT LIGHT COMMAND - CIRCUIT SHORT TO GROUND |
| C1005-12 | TURN LEFT LIGHT COMMAND - CIRCUIT SHORT TO BATTERY |
| C1005-13 | TURN LEFT LIGHT COMMAND - CIRCUIT OPEN |
| C1006-11 | TURN RIGHT LIGHT COMMAND - CIRCUIT SHORT TO GROUND |
| C1006-12 | TURN RIGHT LIGHT COMMAND - CIRCUIT SHORT TO BATTERY |
| C1006-13 | TURN RIGHT LIGHT COMMAND - CIRCUIT OPEN |
| C104B-11 | REAR FOG LIGHT COMMAND-CIRCUIT SHORT TO GROUND |
| C104B-12 | REAR FOG LIGHT COMMAND-CIRCUIT SHORT TO BATTERY |
| C104B-13 | REAR FOG LIGHT COMMAND-CIRCUIT OPEN |
| C104C-11 | REVERSE LIGHT COMMAND - CIRCUIT SHORT TO GROUND |
| C104C-12 | REVERSE LIGHT COMMAND - CIRCUIT SHORT TO BATTERY |
| C104C-13 | REVERSE LIGHT COMMAND-CIRCUIT OPEN |
| C104D-11 | POSITION RIGHT LIGHT COMMAND - CIRCUIT SHORT TO GROUND |
| C104D-12 | POSITION RIGHT LIGHT COMMAND - CIRCUIT SHORT TO BATTERY |
| C104D-13 | POSITION RIGHT LIGHT COMMAND - CIRCUIT OPEN |
| C104E-11 | POSITION LEFT LIGHT COMMAND - CIRCUIT SHORT TO GROUND |
| C104E-12 | POSITION LEFT LIGHT COMMAND - CIRCUIT SHORT TO BATTERY |
| C104E-13 | POSITION LEFT LIGHT COMMAND - CIRCUIT OPEN |
| C104F-64 | TRAILER CONNECTED STATUS - SIGNAL PLAUSIBILITY FAILURE |
| C105B-64 | TURN LIGHT REAR LEFT - SIGNAL PLAUSIBILITY FAILURE |
| C105C-64 | TURN LIGHT REAR RIGHT - SIGNAL PLAUSIBILITY FAILURE |
| C105D-8F | VEHICLE SPEED ERROR - ERRATIC |
| C106D-11 | STOP LEFT/RIGHT LIGHT COMMAND - CIRCUIT SHORT TO GROUND |
| C106D-12 | STOP LEFT/RIGHT LIGHT COMMAND - CIRCUIT SHORT TO BATTERY |
| C106D-13 | STOP LEFT/RIGHT LIGHT COMMAND - CIRCUIT OPEN |
| U0010-87 | CAN BH BUS - MISSING MESSAGE |
| U0010-88 | BH CAN BUS - BUS OFF |
| U1700-86 | BODY CONTROL MODULE (BCM) - SIGNAL INVALID |
| U1703-86 | INSTRUMENT PANEL CLUSTER (IPC) - SIGNAL INVALID |
| U1703-87 | INSTRUMENT PANEL CLUSTER IPC - MISSING MESSAGE |
| U1930-86 | INTERNAL IGNITION WORKING CONDITION SIGNAL - SIGNAL INVALID |
| U1932-86 | IGNITION WORKING CONDITION SIGNAL FROM BODY CONTROL MODULE - SIGNAL INVALID |
| U1933-87 | STATUS_BH_BCM1-MISSING MESSAGE |
| U1934-87 | STATUS_CCAN3-MISSING MESSAGE |
RENDER: 1.0x
NO RELATED
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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.