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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSJEEP2024GRAND CHEROKEE ALTITUDE X, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXDTC INDEX (3 OF 3)MODULE, TRAILER TOW (TTM)
2024 Jeep Grand Cherokee Altitude X, RWD
Module, Trailer Tow (TTM)
2024 Jeep Grand Cherokee Altitude X, RWDSECTION Module, Trailer Tow (TTM)
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| B166A-11 | LEFT TRAILER TOW LAMP CONTROL - CIRCUIT SHORT TO GROUND |
| B166A-12 | LEFT TRAILER TOW LAMP CONTROL - CIRCUIT SHORT TO BATTERY |
| B166A-13 | LEFT TRAILER TOW LAMP CONTROL - CIRCUIT OPEN |
| B166E-11 | RIGHT TRAILER TOW LAMP CONTROL - CIRCUIT SHORT TO GROUND |
| B166E-12 | RIGHT TRAILER TOW LAMP CONTROL - CIRCUIT SHORT TO BATTERY |
| B166E-13 | RIGHT TRAILER TOW LAMP CONTROL - CIRCUIT OPEN |
| B16BB-11 | TRAILER STOP LAMP CONTROL - CIRCUIT SHORT TO GROUND |
| B16BB-12 | TRAILER STOP LAMP CONTROL - CIRCUIT SHORT TO BATTERY |
| B16BB-13 | TRAILER STOP LAMP CONTROL - CIRCUIT OPEN |
| B17AD-11 | REAR LEFT TRAILER TURN LAMP CONTROL - CIRCUIT SHORT TO GROUND |
| B17AD-12 | REAR LEFT TRAILER TURN LAMP CONTROL-CIRCUIT SHORT TO BATTERY |
| B17AD-13 | REAR LEFT TRAILER TURN LAMP CONTROL - CIRCUIT OPEN |
| B17B1-11 | REAR RIGHT TRAILER TURN LAMP CONTROL - CIRCUIT SHORT TO GROUND |
| B17B1-12 | REAR RIGHT TRAILER TURN LAMP CONTROL-CIRCUIT SHORT TO BATTERY |
| B17B1-13 | REAR RIGHT TRAILER TURN LAMP CONTROL - CIRCUIT OPEN |
| B17C5-11 | TRAILER TOW REVERSE LAMP CONTROL - CIRCUIT SHORT TO GROUND |
| B17C5-12 | TRAILER TOW REVERSE LAMP CONTROL-CIRCUIT SHORT TO BATTERY |
| B17C5-13 | TRAILER TOW REVERSE LAMP CONTROL - CIRCUIT OPEN |
| B17C9-11 | TRAILER TOW REAR FOG LAMP CONTROL - CIRCUIT SHORT TO GROUND |
| B17C9-12 | TRAILER TOW REAR FOG LAMP CONTROL - CIRCUIT SHORT TO BATTERY |
| B17C9-13 | TRAILER TOW REAR FOG LAMP CONTROL - CIRCUIT OPEN |
| B235C-64 | TRAILER CONNECTION - SIGNAL PLAUSIBILITY FAILURE |
| C2129-16 | BATTERY VOLTAGE - CIRCUIT VOLTAGE BELOW THRESHOLD |
| C2129-17 | BATTERY VOLTAGE - CIRCUIT VOLTAGE ABOVE THRESHOLD |
| C2213-00 | TRAILER BRAKE MODULE INTERNAL |
| C2213-42 | TRAILER BRAKE MODULE INTERNAL - GENERAL MEMORY FAILURE |
| C2214-00 | ITBM NOT CALIBRATED |
| U0019-00 | CAN B BUS |
| U0121-00 | LOST COMMUNICATION WITH ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE "A" |
| U0140-00 | LOST COMMUNICATION WITH BODY CONTROL MODULE |
| U0155-00 | LOST COMMUNICATION WITH CLUSTER/CCN |
| U0415-00 | INVALID DATA RECEIVED FROM ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE "A" |
| U0422-00 | IMPLAUSIBLE DATA RECEIVED FROM BODY CONTROL MODULE |
| U1601-00 | ECU APPLICATION SOFTWARE CODE 1 MISSING OR CORRUPTED |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.