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 Fiat 500X PopFACTORY OEM SERVICE PROCEDURE
Cluster, Instrument
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| B1000-44 | ELECTRONIC CONTROL UNIT - DATA MEMORY FAILURE |
| B1000-45 | ELECTRONIC CONTROL UNIT - PROGRAM MEMORY FAILURE |
| B1000-46 | ELECTRONIC CONTROL UNIT - CALIBRATION/PARAMETER MEMORY FAILURE |
| B1000-47 | ELECTRONIC CONTROL UNIT - WATCHDOG/SAFETY ΞΌC FAILURE |
| B1002-64 | IPC_OPERATIONALMODESTS.INFO - SIGNAL PLAUSIBILITY FAILURE |
| B1003-12 | ASSIST LIGHT U_CALL_GREEN_LED_FAILURE - CIRCUIT SHORT TO BATTERY |
| B1003-13 | ASSIST LIGHT U_CALL_GREEN_LED_FAILURE - CIRCUIT OPEN |
| B1004-12 | ASSIST LIGHT U_CALL_RED_LED_FAILURE - CIRCUIT SHORT TO BATTERY |
| B1004-13 | ASSIST LIGHT U_CALL_RED_LED_FAILURE - CIRCUIT OPEN |
| B1005-12 | ECSB E_CALL_SWITCH_FAILURE - CIRCUIT SHORT TO BATTERY |
| B1006-12 | ECSB U_CALL_SWITCH_FAILURE - CIRCUIT SHORT TO BATTERY |
| B1007-12 | EMERGENCY LIGHT E_CALL_GREEN_LED_FAILURE - CIRCUIT SHORT TO BATTERY |
| B1007-13 | EMERGENCY LIGHT E_CALL_GREEN_LED_FAILURE - CIRCUIT OPEN |
| B1008-12 | EMERGENCY LIGHT E_CALL_RED_LED_FAILURE - CIRCUIT SHORT TO BATTERY |
| B1019-45 | ECSB_ELECTRIC_FAILURE - PROGRAM MEMORY FAILURE |
| B1019-46 | ECSB_ELECTRIC_FAILURE - CALIBRATION/PARAMETER MEMORY FAILURE |
| B1019-8F | ECSB_ELECTRIC_FAILURE - ERRATIC |
| B1020-64 | SCCM_CRS_CTRL.CRUISECONTROLFAILSTS - SIGNAL PLAUSIBILITY FAILURE |
| B1021-64 | SCCM_CRS_CTRL.MC_CSWC_1 - SIGNAL PLAUSIBILITY FAILURE |
| B1022-64 | SCCM_CRS_CTRL.CRC_CSWC_1 - SIGNAL PLAUSIBILITY FAILURE |
| B1023-09 | SCCM_CRS_CTRL - COMPONENT FAILURES |
| B1024-64 | BRAKE1. VEHICLESPEEDVSOSIG BRAKE1. VEHICLESPEEDVSOSIGFAILSTS - SIGNAL PLAUSIBILITY FAILURE |
| B1025-64 | ENGINE1. ENGINESPEED ENGINE1. ENGINESPEEDFAILSTS - SIGNAL PLAUSIBILITY FAILURE |
| B1026-64 | HAPTIC1. DISPLAYSTS-SIGNAL FROM HALF-SIGNAL PLAUSIBILITY FAILURE |
| B1900-01 | SECURE WARNING LAMPS - GENERAL ELECTRICAL FAILURE |
| U0001-87 | C CAN-MISSING MESSAGE |
| U0001-88 | C CAN-BUS OFF |
| U0010-87 | B CAN-MISSING MESSAGE |
| U0010-88 | B CAN-BUS OFF |
| U1442-00 | HUM-NO SUBTYPE INFORMATION |
| U1442-86 | HUM-SIGNAL INVALID |
| U1442-87 | HUM - MISSING MESSAGE |
| U1446-87 | COM - MISSING MESSAGE |
| U144B-87 | ECSB - MISSING MESSAGE |
| U1700-86 | BODY COMPUTER MODULE (BCM) - SIGNAL INVALID |
| U1700-87 | BODY CONTROL MODULE (BCM) - MISSING MESSAGE |
| U1701-86 | ENGINE CONTROLLER (ECM) - SIGNAL INVALID |
| U1701-87 | ENGINE CONTROL MODULE (ECM) - MISSING MESSAGE |
| U1706-86 | BRAKING SYSTEM MODULE (BSM) - SIGNAL INVALID |
| U1706-87 | BRAKING SYSTEM MODULE (BSM) - MISSING MESSAGE |
| U1711-86 | DUAL CLUTCH TRANSMISSION MODULE (DCTM) - SIGNAL INVALID |
| U1711-87 | DUAL CLUTCH TRANSMISSION MODULE DCTM - MISSING MESSAGE |
| U1722-86 | AUTOMATIC TRANSMISSION GEAR SHIFTER MODULE AGSM DUAL CLUTCH SHIFTER MODULE DCSM-SIGNAL INVALID |
| U1722-87 | AUTOMATIC TRANSMISSION GEAR SHIFTER MODULE AGSM DUAL CLUTCH SHIFTER MODULE DCSM-MISSING MESSAGE |
| U1726-86 | OCCUPANT RESTRAINT CONTROL (ORC) - SIGNAL INVALID |
| U1726-87 | OCCUPANT RESTRAINT CONTROL (ORC) - MISSING MESSAGE |
| U1736-86 | ETM (ENTERTAINMENT TELEMATIC MODULE) - SIGNAL INVALID |
| U1736-87 | ETM (ENTERTAINMENT TELEMATIC MODULE) - MISSING MESSAGE |
| U1751-86 | LEFT BLIND SPOT SENSOR (LBSS) - SIGNAL INVALID |
| U1751-87 | LEFT BLIND SPOT SENSOR (LBSS) - MISSING MESSAGE |
| U1752-86 | RIGHT BLIND SPOT SENSOR (RBSS) - SIGNAL INVALID |
| U1752-87 | RIGHT BLIND SPOT SENSOR (RBSS) - MISSING MESSAGE |
| U1757-86 | DRIVE ASSISTANT SYSTEM MODULE (DASM) - SIGNAL INVALID |
| U1757-87 | DRIVE ASSISTANT SYSTEM MODULE (DASM) - MISSING MESSAGE |
| U1765-86 | RADIO FREQUENCY HUB MODULE (RFHM) - SIGNAL INVALID |
| U1765-87 | RADIO FREQUENCY HUB MODULE - RFHM - MISSING MESSAGE |
| U1767-86 | DRIVE TRAIN CONTROL MODULE (DTCM) - SIGNAL INVALID |
| U1767-87 | DRIVE TRAIN CONTROL MODULE (DTCM) - MISSING MESSAGE |
| U1801-08 | LIN IPC - BUS SIGNAL/MESSAGE FAILURE |
| U1801-11 | LIN BUS CIRCUIT-SHORT TO GROUND |
| U1930-86 | ECU-OPERATIONALMODESTS INTERNAL SIGNAL-SIGNAL INVALID |
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.