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 Renegade Islander, FWDFACTORY OEM SERVICE PROCEDURE
Module, Adaptive Cruise Control (Acc)
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| C1200-16 | BATTERY VOLTAGE - CIRCUIT VOLTAGE BELOW THRESHOLD |
| C1200-17 | BATTERY VOLTAGE - CIRCUIT VOLTAGE ABOVE THRESHOLD |
| C1400-86 | MASTER CYLINDER PRESSURE FAULT - SIGNAL INVALID |
| C1401-86 | WHEEL SPEED PLAUSIBILITY FAILURE - SIGNAL INVALID |
| C1402-86 | MULTI AXIS ACCELERATION SENSORS FROM BSM FAILURE - SIGNAL INVALID |
| C1403-86 | ELECTRICAL POWER STEERING FAILURE - SIGNAL INVALID |
| C1404-86 | ENGINE SIGNAL FAILURE - SIGNAL INVALID |
| C1405-86 | TRAILER TOW MODULE FAIL - SIGNAL INVALID |
| C1406-86 | BRAKE SWITCH PLAUSIBILITY - SIGNAL INVALID |
| C1407-86 | IMPLAUSIBLE DATA RECEIVED FROM BSM (INVALID ACKNOWLEDGE CAN BUS SIGNAL FROM BRAKE SYSTEM MODULE) - SIGNAL INVALID |
| C1408-86 | ESC (ELECTRONIC STABILITY CONTROL) FAIL STATUS PRESENT - SIGNAL INVALID |
| C1409-97 | RADAR SENSOR BLIND - COMPONENT OR SYSTEM OPERATION OBSTRUCTED OR BLOCKED |
| C140A-55 | VEHICLE EOL CONFIGURATION - NOT CONFIGURED |
| C140B-05 | VEHICLE CONFIGURATION (PROXI CONFIGURATION) NOT LEARNED/MISMATCH - SYSTEM PROGRAMMING FAILURES |
| C140C-86 | DASM (DRIVER ASSISTANT SYSTEM MODULE) INTERVENTION REQUEST TIME OUT OF RANGE - SIGNAL INVALID |
| C140D-86 | SEAT BELT INFORMATION FAILURE - SIGNAL INVALID |
| C140E-05 | ADAPTIVE CRUISE CONTROL EOL ACTIVATION FAULT - SYSTEM PROGRAMMING FAILURE |
| C140E-86 | EXTERNAL TEMPERATURE SIGNAL FROM BCM-BODY CONTROL MODULE-SIGNAL INVALID |
| C140F-05 | ADAPTIVE CRUISE CONTROL EOL CONFIGURATION FAULT - SYSTEM PROGRAMMING FAILURE |
| C1410-87 | LOST COMMUNICATION WITH BCM (CAN MESSAGE C2_IGW1 MISSING FROM BODY CONTROL MODULE) - MISSING MESSAGE |
| C1411-49 | CONTROL UNIT - INTERNAL ELECTRONIC FAILURE |
| C1411-96 | CONTROL UNIT-COMPONENT INTERNAL FAILURE |
| C1412-54 | CALIBRATION PROCEDURE - MISSING CALIBRATION |
| C1413-86 | EXTERNAL LIGHT MESSAGE - SIGNAL INVALID |
| C1413-87 | EXTERNAL LIGHT MESSAGE - MISSING MESSAGE |
| C1414-87 | LOST COMMUNICATION WITH IPC (CAN MESSAGE CLUSTER2 MISSING FROM INSTRUMENT PANEL CLUSTER) - MISSING MESSAGE |
| C1415-53 | MANUFACTURING MODE-DEACTIVATED |
| C1416-87 | VIN MESSAGE - MISSING MESSAGE |
| C1417-78 | HORIZONTAL MISALIGNMENT SENSOR - ALIGNMENT OR ADJUSTMENT INCORRECT |
| C1418-78 | VERTICAL MISALIGNMENT SENSOR - ALIGNMENT OR ADJUSTMENT INCORRECT |
| C1419-64 | INTERNAL WHEEL SPEED PLAUSIBILITY FAILURE - SIGNAL PLAUSIBILTY FAILURE |
| C141A-64 | INTERNAL STEERING WHEEL ANGLE PLAUSIBILITY FAILURE - SIGNAL PLAUSIBILITY FAILURE |
| C141B-97 | VIDEO CAMERA BLIND - COMPONENT OR SYSTEM OPERATION OBSTRUCTED OR BLOCKED |
| C141C-08 | VIDEO CAMERA PRIVATE CAN COMMUNICATION FAILURE-BUS SIGNAL MESSAGE FAILURE |
| C141C-82 | VIDEO CAMERA PRIVATE CAN COMMUNICATION FAILURE-ALIVE SEQUENCE COUNTER INCORRECT NOT UPDATED |
| C141C-86 | VIDEO CAMERA PRIVATE CAN COMMUNICATION FAILURE - SIGNAL INVALID |
| C141C-87 | VIDEO CAMERA PRIVATE CAN COMMUNICATION FAILURE-MISSING MESSAGE |
| C141C-88 | VIDEO CAMERA PRIVATE CAN COMMUNICATION FAILURE-BUS OFF |
| C141D-47 | ECU INTERNAL PERFORMANCE (ECU MICROCONTROLLER INTERNAL RESET) - WATCHDOG SAFETY MICROCONTROL FAILURE |
| C141E-49 | COMPONENT INTERNAL COMMUNICATION FAILURE - INTERNAL ELECTRONIC FAILURE |
| C141F-96 | HARDWARE RESET FAILURE - COMPONENT INTERNAL FAILURE |
| C1420-25 | RADAR SENSOR BLINDED (SIGNAL DISTURBED) - SIGNAL SHAPE WAVEFORM FAILURE |
| C1420-66 | RADAR SENSOR BLINDED (SIGNAL DISTURBED) - SIGNAL HAS TOO MANY TRANSITIONS EVENTS |
| C1421-64 | INTERNAL MULTI AXIS ACCELERATION PLAUSIBILITY FAILURE - SIGNAL PLAUSIBILTY FAILURE |
| C1422-49 | INTERNAL HARDWARE PLAUSIBILITY CHECK - INTERNAL ELECTRONIC FAILURE |
| C1422-66 | INTERNAL HARDWARE PLAUSIBILITY CHECK - SIGNAL HAS TOO MANY TRANSITIONS EVENTS |
| C1423-4B | SENSOR INTERNAL TEMPERATURE - OVER TEMPERATURE |
| C1424-4B | COMPONENT INTERNAL TEMPERATURE - OVER TEMPERATURE |
| C1425-45 | FLASHED SOFTWARE IN ECU NOT COMPATIBLE - PROGRAM MEMORY FAILURE |
| C1426-49 | CONTROL UNIT PERMANENT FAILURE - INTERNAL ELECTRONIC FAULURE |
| C1427-66 | RADAR SENSOR BLINDED (RADAR MODULATION DISTURBED) - SIGNAL HAS TOO MANY TRANSITIONS EVENTS |
| C1427-68 | RADAR SENSOR BLINDED (RADAR MODULATION DISTURBED) - EVENT INFORMATION |
| C1428-68 | SENSOR BLINDED (RADAR UNAVAILABLE) - EVENT INFORMATION |
| C1429-66 | RADAR HARDWARE OVERTEMPERATURE - SIGNAL HAS TOO MANY TRANSITIONS EVENTS |
| C1429-68 | RADAR HARDWARE OVERTEMPERATURE - EVENT INFORMATION |
| C1430-86 | VIN PLAUSIBILITY CHECK FAILURE - SIGNAL INVALID |
| C1431-86 | YAW RATE ACCELERATION SENSOR FROM BSM FAILURE - SIGNAL INVALID |
| C1432-86 | TURN INDICATOR SIGNAL FAILURE FROM BCM - SIGNAL INVALID |
| C1433-86 | EXTERNAL BRAKE SIGNAL FAILURE FROM BSM - SIGNAL INVALID |
| C1434-86 | BRAKE JERK REQUEST NOT PLAUSIBLE - SIGNAL INVALID |
| C1435-87 | STATUS EPB MESSAGE FROM BSM (BRAKE SYSTEM MODULE) ABSENT - MISSING MESSAGE |
| C1436-86 | ELECTRIC PARKING BRAKE SYSTEM FAIL - SIGNAL INVALID |
| C1438-86 | GAS PEDAL POSITION SIGNALS FROM ECM (ENGINE CONTROL MODULE) NOT VALID - SIGNAL INVALID |
| C1439-86 | ENGINE TORQUE SIGNALS FROM ECM (ENGINE CONTROL MODULE) NOT VALID - SIGNAL INVALID |
| C143A-86 | TRAILER TOW MODULE STOP LIGHT SIGNAL FROM TTM-TRAILER TOW MODULE-FAIL-SIGNALINVALID |
| C143B-87 | ENGINE 5 MESSAGES-FROM ENGINE CONTROL MODULE-FOR ADAPTATIVE CRUISE CONTROL FUNCTION-MISSING MESSAGE |
| C1440-87 | ENGINE 3/4/5 MESSAGES (FROM ENGINE CONTROL MODULE) FOR ADAPTIVE CRUISE CONTROL FUNCTION - MISSING MESSAGE |
| C1441-87 | ENGINE7 MESSAGE (FROM ENGINE CONTROL MODULE) FOR ADAPTIVE CRUISE CONTROL FUNCTION - MISSING MESSAGE |
| C1442-87 | TRANSM1 MESSAGE (FROM DUAL CLUTCH TRANSMISSION MODULE) FOR ADAPTIVE CRUISE CONTROL FUNCTION - MISSING MESSAGE |
| C1443-87 | TRANSM2 MESSAGE (FROM DUAL CLUTCH TRANSMISSION MODULE) FOR ADAPTIVE CRUISE CONTROL FUNCTION - MISSING MESSAGE |
| C1445-87 | SCCM CRS CTRL MESSAGE (FROM STEERING COLUMN CONTROL MODULE) FOR ADAPTIVE CRUISE CONTROL FUNCTION - MISSING MESSAGE |
| C1446-86 | CRUISE CONTROL INFORMATION FAIL - SIGNAL INVALID |
| C1447-87 | ENGINE10 MESSAGE (FROM ENGINE CONTROL MODULE) FOR ADAPTIVE CRUISE CONTROL FUNCTION - MISSING MESSAGE |
| C1448-87 | DRIVETRAIN1 MESSAGE (FROM DRIVE TRAIN CONTROL MODULE) FOR ADAPTIVE CRUISE CONTROL FUNCTION - MISSING MESSAGE |
| C1449-29 | SIGNAL FROM SCCM (STEERING CONTROL MODULE) NOT PLAUSIBLE - SIGNAL SIGNAL INVALID |
| C144A-86 | VEHICLE SPEED SIGNAL NOT VALID - SIGNAL INVALID |
| C144B-24 | ACC (ADAPTIVE CRUISE CONTROL) FUNCTION BUTTON STUCK - SIGNAL STUCK HIGH |
| C144D-86 | ENGINE TORQUE REQUEST NOT PLAUSIBLE - SIGNAL INVALID |
| C144E-86 | ELD SIGNAL FAIL FROM BSM (BRAKE SYSTEM MODULE) - SIGNAL INVALID |
| C144F-86 | SIGNAL LIMPHOME STATUS ACTIVE FROM DCTM (DUAL CLUTCH TRANSMISSION MODULE) NOT VALID - SIGNAL INVALID |
| C1450-86 | ENGINE SPEED SIGNAL FAIL FROM ECM (ENGINE CONTROL MODULE) - SIGNAL INVALID |
| C1451-86 | ACC (ADAPTIVE CRUISE CONTROL) SAFE - SIGNAL INVALID |
| C1452-86 | ENGINE TORQUE DAS - SIGNAL INVALID |
| C1453-86 | ACC (ADAPTIVE CRUISE CONTROL) INTERVENTION SIGNALS NOT PLAUSIBLE - SIGNAL INVALID |
| C1454-86 | SIGNAL FAILURE FROM LBSS-LEFT BLIND SPOT SENSOR-SIGNAL INVALID |
| C1455-86 | SIGNAL FAILURE FROM RBSS-RIGHT BLIND SPOT SENSOR-SIGNAL INVALID |
| C1456-86 | SIGNAL ACTUAL GEAR ACC FROM ECM-ENGINE CONTROL MODULE-NOT VALID-SIGNAL INVALID |
| C1457-87 | MOTTRANSM 3 MESSAGE-FROM ENGINE CONTROL MODULE-FOR ADAPTATIVE CRUISE CONTROL FUNCTION-MISSING MESSAGE |
| C1458-87 | BLIND SPOT INFORMATION NOT RECEIVED FROM BCM-BODY COMPUTER MODULE-MISSING MESSAGE |
| C1459-86 | SIGNAL BRAKE TRAVEL STATUS FROM BSM (BRAKE SYSTEM MODULE) NOT VALID - SIGNAL INVALID |
| C150B-87 | ENGINE 15 MESSAGE (FROM ENGINE CONTROL MODULE) FOR ADAPTATIVE CRUISE CONTROL FUNCTION - MISSING MESSAGE |
| C150C-86 | SHIFT LEVER POSITION SIGNAL FROM DCTM (DUAL CLUTCH TRANSMISSION MODULE) - SIGNAL INVALID |
| U0001-87 | C1 CAN BUS-MISSING MESSAGE |
| U0001-88 | C1 CAN BUS-BUS OFF |
| U1700-87 | BODY CONTROL MODULE (BCM) - MISSING MESSAGE |
| U1701-86 | ENGINE CONTROL MODULE (ECM) - SIGNAL INVALID |
| U1701-87 | ENGINE CONTROL MODULE (ECM) - MISSING MESSAGE |
| U1702-87 | ELECTRIC POWER STEERING (EPS) - MISSING MESSAGE |
| U1703-87 | INSTRUMENT PANEL CLUSTER (IPC) - MISSING MESSAGE |
| U1706-86 | BRAKE SYSTEM MODULE (BSM) - SIGNAL INVALID |
| U1706-87 | BRAKE SYSTEM MODULE (BSM) - MISSING MESSAGE |
| U1726-87 | AIRBAG SYSTEM - MISSING MESSAGE |
| U1763-87 | TRAILER TOW MODULE (TTM) - MISSING MESSAGE |
| U1930-86 | INTERNAL IGNITION WORKING CONDITION SIGNAL - SIGNAL INVALID |
| U1932-86 | IGNITION WORKING CONDITION FROM BCM (BODY COMPUTER MODULE) NOT VALID - SIGNAL INVALID |
| U1933-87 | BCM COMMAND MESSAGE FROM BCM (BODY COMPUTER MODULE) ABSENT - MISSING MESSAGE |
| U1934-87 | LOST COMMUNICATION WITH BCM (CAN MESSAGES BCM_COMMAND AND BODY2 MISSING FROM BODY CONTROL MODULE) - MISSING MESSAGE |
| U1950-83 | IMPLAUSIBILE DATA RECEIVED FROM BODY CONTROL MODULE (CAN MESSAGE BCM_COMMAND INTEGRITY ERROR) - VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
| U1952-83 | IMPLAUSIBILE DATA RECEIVED FROM BRAKE SYSTEM MODULE (CAN MESSAGE BRAKE1 INTEGRITY ERROR) - VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
| U1958-83 | IMPLAUSIBILE DATA RECEIVED FROM BRAKE SYSTEM MODULE (CAN MESSAGE BSM_YRS_DATA INTEGRITY ERROR) - VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
| U195C-83 | IMPLAUSIBILE DATA RECEIVED FROM DRIVE TRAIN CONTROL MODULE-CAN MESSAGE DRIVETRAIN1 INTEGRITY ERROR-VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
| U1960-83 | IMPLAUSIBILE DATA RECEIVED FROM ENGINE CONTROL MODULE (CAN MESSAGE ENGINE1 INTEGRITY ERROR) - VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
| U1962-83 | IMPLAUSIBILE DATA RECEIVED FROM ENGINE CONTROL MODULE-CAN MESSAGE ENGINE3 INTEGRITY ERROR-VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
| U1966-83 | IMPLAUSIBILE DATA RECEIVED FROM ELECTRICAL POWER STEERING (CAN MESSAGE GE INTEGRITY ERROR) - VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
| U1970-83 | IMPLAUSIBILE DATA RECEIVED FROM ENGINE CONTROL MODULE (CAN MESSAGE TRANSM3 INTEGRITY ERROR) - VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
| U1978-83 | IMPLAUSIBILE DATA RECEIVED FROM BRAKE SYSTEM MODULE (CAN MESSAGE STATUS_EPB) - VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
| U197A-83 | IMPLAUSIBILE DATA RECEIVED FROM DUAL CLUTCH TRANSMISSION MODULE (CAN MESSAGE TRANSM1) - VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
| U197C-83 | IMPLAUSIBILE DATA RECEIVED FROM DUAL CLUTCH TRANSMISSION MODULE (CAN MESSAGE TRANSM2) - VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
| U1982-83 | IMPLAUSIBILE DATA RECEIVED FROM BRAKE SYSTEM MODULE (CAN MESSAGE WHEEL_INFO INTEGRITY ERROR) - VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
| U1984-83 | IMPLAUSIBILE DATA RECEIVED FROM BRAKE SYSTEM MODULE (CAN MESSAGE WHEEL_SPEED INTEGRITY ERROR) - VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
| U1986-83 | IMPLAUSIBILE DATA RECEIVED FROM STEERING COLUMN CONTROL MODULE (CAN MESSAGE SCCM_CRS_CTRL) - VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
| U198A-83 | IMPLAUSIBILE DATA RECEIVED FROM BRAKE SYSTEM MODULE (CAN MESSAGE BRAKE7 INTEGRITY ERROR) - VALUE OF SIGNAL PROTECTION CALCULATION INCORRECT |
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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