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 Jeep Grand Cherokee TrackhawkFACTORY OEM SERVICE PROCEDURE
Module, Active Damping Control (ADCM), SRT8
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| C15AF-1F | LOW SIDE DRIVER - CIRCUIT INTERMITTENT |
| C15B1-11 | REAR ACCELERATION SENSOR - CIRCUIT SHORT TO GROUND |
| C15B1-12 | REAR ACCELERATION - CIRCUIT SHORT TO BATTERY |
| C15B1-76 | REAR ACCELERATION SENSOR - WRONG MOUNTING POSITION |
| C15B2-11 | LEFT FRONT ACCELERATION SENSOR - CIRCUIT SHORT TO GROUND |
| C15B2-12 | LEFT FRONT ACCELERATION SENSOR - CIRCUIT SHORT TO BATTERY |
| C15B2-76 | LEFT FRONT ACCELERATION SENSOR - WRONG MOUNTING POSITION |
| C15B3-11 | RIGHT FRONT ACCELERATION SENSOR - CIRCUIT SHORT TO GROUND |
| C15B3-12 | RIGHT FRONT ACCELERATION SENSOR - CIRCUIT SHORT TO BATTERY |
| C15B3-76 | RIGHT FRONT ACCELERATION SENSOR - WRONG MOUNTING POSITION |
| C15B4-04 | LEFT FRONT DAMPING VALVE LOW SIDE 1 - SYSTEM INTERNAL FAILURES |
| C15B4-11 | LEFT FRONT DAMPING VALVE LOW SIDE 1 - CIRCUIT SHORT TO GROUND |
| C15B4-12 | LEFT FRONT DAMPING VALVE LOW SIDE 1 - CIRCUIT SHORT TO BATTERY |
| C15B4-13 | LEFT FRONT DAMPING VALVE LOW SIDE 1 - CIRCUIT OPEN |
| C15B5-08 | LEFT FRONT DAMPING VALVE LOW SIDE 2 - BUS SIGNAL/MESSAGE FAILURES |
| C15B5-11 | LEFT FRONT DAMPING VALVE LOW SIDE 2 - CIRCUIT SHORT TO GROUND |
| C15B5-12 | LEFT FRONT DAMPING VALVE LOW SIDE 2 - CIRCUIT SHORT TO BATTERY |
| C15B5-13 | LEFT FRONT DAMPING VALVE LOW SIDE 2 - CIRCUIT OPEN |
| C15B6-11 | RIGHT FRONT DAMPING VALVE LOW SIDE 1 - CIRCUIT SHORT TO GROUND |
| C15B6-12 | RIGHT FRONT DAMPING VALVE LOW SIDE 1 - CIRCUIT SHORT TO BATTERY |
| C15B6-13 | RIGHT FRONT DAMPING VALVE LOW SIDE 1 - CIRCUIT OPEN |
| C15B7-11 | RIGHT FRONT DAMPING VALVE LOW SIDE 2 - CIRCUIT SHORT TO GROUND |
| C15B7-12 | RIGHT FRONT DAMPING VALVE LOW SIDE 2 - CIRCUIT SHORT TO BATTERY |
| C15B7-13 | RIGHT FRONT DAMPING VALVE LOW SIDE 2 - CIRCUIT OPEN |
| C15B8-11 | LEFT REAR DAMPING VALVE LOW SIDE 1 - CIRCUIT SHORT TO GROUND |
| C15B8-12 | LEFT REAR DAMPING VALVE LOW SIDE 1 - CIRCUIT SHORT TO BATTERY |
| C15B8-13 | LEFT REAR DAMPING VALVE LOW SIDE 1 - CIRCUIT OPEN |
| C15B8-14 | LEFT REAR DAMPING VALVE LOW SIDE 1 - CIRCUIT SHORT TO GROUND OR OPEN |
| C15B9-11 | LEFT REAR DAMPING VALVE LOW SIDE 2 - CIRCUIT SHORT TO GROUND |
| C15B9-12 | LEFT REAR DAMPING VALVE LOW SIDE 2 - CIRCUIT SHORT TO BATTERY |
| C15B9-13 | LEFT REAR DAMPING VALVE LOW SIDE 2 - CIRCUIT OPEN |
| C15B9-18 | LEFT REAR DAMPING VALVE LOW SIDE 2 - UNDER CURRENT |
| C15BA-11 | RIGHT REAR DAMPING VALVE LOW SIDE 1 - CIRCUIT SHORT TO GROUND |
| C15BA-12 | RIGHT REAR DAMPING VALVE LOW SIDE 1 - CIRCUIT SHORT TO BATTERY |
| C15BA-13 | RIGHT REAR DAMPING VALVE LOW SIDE 1 - CIRCUIT OPEN |
| C15BA-1C | RIGHT REAR DAMPING VALVE LOW SIDE 1 - CIRCUIT VOLTAGE OUT OF RANGE |
| C15BB-11 | RIGHT REAR DAMPING VALVE LOW SIDE 2-CIRCUIT SHORT TO GROUND |
| C15BB-12 | RIGHT REAR DAMPING VALVE LOW SIDE 2-CIRCUIT SHORT TO BATTERY |
| C15BB-13 | RIGHT REAR DAMPING VALVE LOW SIDE 2-CIRCUIT OPEN |
| C15BC-11 | LEFT FRONT ACCELERATION SENSOR SUPPLY - CIRCUIT SHORT TO GROUND |
| C15BC-12 | LEFT FRONT ACCELERATION SENSOR SUPPLY - CIRCUIT SHORT TO BATTERY |
| C15BD-11 | RIGHT FRONT ACCELERATION SENSOR SUPPLY - CIRCUIT SHORT TO GROUND |
| C15BD-12 | RIGHT FRONT ACCELERATION SENSOR SUPPLY - CIRCUIT SHORT TO BATTERY |
| C15BE-11 | REAR ACCELERATION SENSOR SUPPLY - CIRCUIT SHORT TO GROUND |
| C15BE-12 | REAR ACCELERATION SENSOR SUPPLY - CIRCUIT SHORT TO BATTERY |
| C15BF-2A | DAMPING MODE BUTTON - STUCK |
| C15C2-19 | LEFT FRONT DAMPING VALVE SOLENOID (COMPRESSION STAGE) - OVERCURRENT |
| C15C3-19 | LEFT FRONT DAMPING VALVE SOLENOID (REBOUND STAGE) - OVERCURRENT |
| C15C4-19 | RIGHT FRONT DAMPING VALVE SOLENOID (COMPRESSION STAGE) - OVERCURRENT |
| C15C5-19 | RIGHT FRONT DAMPING VALVE SOLENOID (REBOUND STAGE) - OVERCURRENT |
| C15C6-19 | LEFT REAR DAMPING VALVE SOLENOID (COMPRESSION STAGE) - OVERCURRENT |
| C15C7-19 | LEFT REAR DAMPING VALVE SOLENOID (REBOUND STAGE) - OVERCURRENT |
| C15C8-19 | RIGHT REAR DAMPING VALVE SOLENOID (COMPRESSION STAGE) - OVERCURRENT |
| C15C9-19 | RIGHT REAR DAMPING VALVE SOLENOID (REBOUND STAGE) - OVERCURRENT |
| C211B-92 | IGNITION RUN/START INPUT CIRCUIT - PERFORMANCE OR INCORRECT OPERATION |
| C2129-16 | BATTERY VOLTAGE - CIRCUIT VOLTAGE BELOW THRESHOLD |
| C2129-17 | BATTERY VOLTAGE - CIRCUIT VOLTAGE ABOVE THRESHOLD |
| C212A-16 | SYSTEM VOLTAGE LOW - CIRCUIT VOLTAGE BELOW THRESHOLD |
| C212A-17 | SYSTEM VOLTAGE HIGH - CIRCUIT VOLTAGE ABOVE THRESHOLD |
| C212A-84 | SYSTEM VOLTAGE-SIGNAL BELOW ALLOWABLE RANGE |
| C212A-85 | SYSTEM VOLTAGE-SIGNAL ABOVE ALLOWABLE RANGE |
| C212C-11 | SUSPENSION VALVE POWER SUPPLY VOLTAGE - CIRCUIT SHORT TO GROUND |
| C212C-12 | SUSPENSION VALVE POWER SUPPLY VOLTAGE - CIRCUIT SHORT TO BATTERY |
| C2202-00 | ORIGINAL VIN MISMATCH / MISSING |
| C2206-00 | VEHICLE CONFIGURATION MISMATCH |
| C220C-00 | ACTIVE SUSPENSION MODULE INTERNAL |
| B222A-00 | VEHICLE LINE MISMATCH |
| U0001-00 | CAN C BUS |
| U0002-00 | CAN C BUS OFF PERFORMANCE |
| U0100-00 | LOST COMMUNICATION WITH ECM/PCM |
| U0101-00 | LOST COMMUNICATION WITH TCM |
| U0102-00 | LOST COMMUNICATION WITH TRANSFER CASE CONTROL MODULE / AWD |
| U0121-00 | LOST COMMUNICATION WITH ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE |
| U0126-00 | LOST COMMUNICATION WITH STEERING ANGLE SENSOR |
| U0140-00 | LOST COMMUNICATION WITH BODY CONTROL MODULE |
| U0155-00 | LOST COMMUNICATION WITH CLUSTER-CCN |
| U0401-00 | IMPLAUSIBLE DATA RECEIVED FROM ECM/PCM |
| U0402-00 | IMPLAUSIBLE DATA RECEIVED FROM TCM |
| U0403-00 | IMPLAUSIBLE DATA RECEIVED FROM T-CASE |
| U0415-00 | IMPLAUSIBLE DATA RECEIVED FROM ABS |
| U0422-00 | IMPLAUSIBLE DATA RECEIVED FROM BODY CONTROL MODULE |
| U0429-00 | IMPLAUSIBLE DATA RECEIVED FROM SCM |
| U110A-00 | LOSS OF COMMUNICATIONS WITH SCM - CAN-C |
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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