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.
2018 Alfa Romeo Stelvio BaseFACTORY OEM SERVICE PROCEDURE
Module, Engine Sound Enhancement (ESEM)
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| B1400-11 | CHANNEL 1 AUDIO SPEAKER OUTPUT-SHORT CIRCUIT TO GROUND |
| B1400-12 | CHANNEL 1 AUDIO SPEAKER OUTPUT-SHORT CIRCUIT TO BATTERY |
| B1400-13 | CHANNEL 1 AUDIO SPEAKER OUTPUT-OPEN CIRCUIT |
| B1400-1A | CHANNEL 1 AUDIO SPEAKER OUTPUT-CIRCUIT RESISTANCE BELOW THRESHOLD |
| B1400-92 | CHANNEL 1 AUDIO SPEAKER OUTPUT-PERFORMANCE OR INCORRECT OPERATION |
| B1408-49 | ECU ESEM 1 (INTERNAL) - INTERNAL ELECTRONIC FAILURE |
| B1409-98 | ECU ESEM 2 (OVER TEMPERATURE) - COMPONENT OR SYSTEM OVER TEMPERATURE |
| B140E-11 | ENGINE SHAKER SPEAKER INPUT - CIRCUIT SHORT TO GROUND |
| B140E-12 | ENGINE SHAKER SPEAKER INPUT - CIRCUIT SHORT TO BATTERY |
| B140E-13 | ENGINE SHAKER SPEAKER INPUT - CIRCUIT OPEN |
| B140E-92 | ENGINE SHAKER SPEAKER INPUT - PERFORMANCE OR INCORRECT OPERATION |
| B1410-16 | ECU ESEM 3 (UNDER/OVER VOLTAGE) - CIRCUIT VOLTAGE BELOW THRESHOLD |
| B1410-17 | ECU ESEM 3 (UNDER/OVER VOLTAGE) - CIRCUIT VOLTAGE ABOVE THRESHOLD |
| B1411-05 | EQUALIZATION CURVE - SYSTEM PROGRAMMING FAILURES |
| B1413-05 | PROXI DATA - SYSTEM PROGRAMMING FAILURES |
| U0010-87 | BH CAN LINE-MISSING MESSAGE |
| U0010-88 | BH CAN LINE-BUS OFF |
| U1700-86 | BODY CONTROL MODULE (BCM) - INVALID SIGNAL |
| U1700-87 | BODY CONTROL MODULE (BCM) - MISSING MESSAGE |
| U1931-87 | TRIP_A_B MESSAGE (FROM INSTRUMENT PANEL CLUSTER) - MISSING MESSAGE |
| U2020-87 | VIN MESSAGE - MISSING MESSAGE |
| U2022-64 | MESSAGE STATUS_BH_BCM1.OPERATIONALMODESTS (FROM BODY CONTROL MODULE) - SIGNAL PLAUSIBILITY FAILURE |
| U2023-87 | MESSAGE STATUS_BH_BCM1 (FROM BODY CONTROL MODULE) - MISSING MESSAGE |
| U2024-87 | MESSAGE STATUS_BH_BCM1 (ECU_OPERATIONALMODESTS.INFO) (FROM BODY CONTROL MODULE) - MISSING MESSAGE |
| U2025-87 | MESSAGE STATUS_BH_BCM2 (FROM BODY CONTROL MODULE) - MISSING MESSAGE |
| U2026-87 | MESSAGE STATUS_CCAN3 (FROM BODY CONTROL MODULE) - MISSING MESSAGE |
| U2027-64 | ESEM_OPERATIONALMODESTS.INFO (INTERNAL ERROR) - SIGNAL PLAUSIBILITY FAILURE |
| U2028-64 | MESSAGE STATUS_BH_BCM2.DRIVESTYLESTS (FROM BODY CONTROL MODULE) - SIGNAL PLAUSIBILITY FAILURE |
| U202A-87 | MESSAGE STATUS_CCAN4 (FROM BODY CONTROL MODULE) - MISSING MESSAGE |
| U202B-87 | MESSAGE STATUS_CCAN7 (FROM BODY CONTROL MODULE) - MISSING MESSAGE |
| U202C-87 | MESSAGE STATUS_CCAN5 (FROM BODY CONTROL MODULE) - MISSING MESSAGE |
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.