P0A0A · メーカー技術情報

CHRYSLER · 2026-03-27

Flash: Battery Pack Control Module (BPCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation SYMPTOM: the technician must find the following Diagnostic Trouble Code (DTC) has been set: ● P0A0A-00 - High Voltage System Interlock Circuit. IMPORTANT! ○ **This DTC must be Stored in the BPCM. ○ If the DTC is Active, this TSB does not apply. Perform normal diagnostics.** Customers **must** also comment on the following: ● The vehicle will not start, both propulsion systems (gas and electric), are inoperable. NOTE: **The 12 volt system is still operable however after some time, the vehicle will allow propulsion again with MIL on and DTC P0A0A-00 Stored.** This bulletin involves reprogramming the BPCM with the latest available software.

CHRYSLER · 2026-03-27

Flash: Battery Pack Control Module (BPCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation SYMPTOM: the technician must find the following Diagnostic Trouble Code (DTC) has been set: ● P0A0A-00 - High Voltage System Interlock Circuit. IMPORTANT! ○ **This DTC must be Stored in the BPCM. ○ If the DTC is Active, this TSB does not apply. Perform normal diagnostics.** Customers **must** also comment on the following: ● The vehicle will not start, both propulsion systems (gas and electric), are inoperable. NOTE: **The 12 volt system is still operable however after some time, the vehicle will allow propulsion again with MIL on and DTC P0A0A-00 Stored.** This bulletin involves reprogramming the BPCM with the latest available software.

CHRYSLER · 2026-03-27

Flash: Battery Pack Control Module (BPCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation SYMPTOM: the technician must find the following Diagnostic Trouble Code (DTC) has been set: ● P0A0A-00 - High Voltage System Interlock Circuit. IMPORTANT! ○ **This DTC must be Stored in the BPCM. ○ If the DTC is Active, this TSB does not apply. Perform normal diagnostics.** Customers **must** also comment on the following: ● The vehicle will not start, both propulsion systems (gas and electric), are inoperable. NOTE: **The 12 volt system is still operable however after some time, the vehicle will allow propulsion again with MIL on and DTC P0A0A-00 Stored.** This bulletin involves reprogramming the BPCM with the latest available software.

CHRYSLER · 2026-03-27

Flash: Battery Pack Control Module (BPCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation SYMPTOM: the technician must find the following Diagnostic Trouble Code (DTC) has been set: ● P0A0A-00 - High Voltage System Interlock Circuit. IMPORTANT! ○ **This DTC must be Stored in the BPCM. ○ If the DTC is Active, this TSB does not apply. Perform normal diagnostics.** Customers **must** also comment on the following: ● The vehicle will not start, both propulsion systems (gas and electric), are inoperable. NOTE: **The 12 volt system is still operable however after some time, the vehicle will allow propulsion again with MIL on and DTC P0A0A-00 Stored.** This bulletin involves reprogramming the BPCM with the latest available software.

CHRYSLER · 2026-03-21

Flash: Battery Pack Control Module (BPCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation SYMPTOM: the technician must find the following Diagnostic Trouble Code (DTC) has been set: ● P0A0A-00 - High Voltage System Interlock Circuit. Customers may also comment on the following: ● The vehicle will not start, both propulsion systems (gas and electric) are inoperable. NOTE: 12V system is still operable. This bulletin involves reprogramming the BPCM with the latest available software.

CHRYSLER · 2026-03-21

Flash: Battery Pack Control Module (BPCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation SYMPTOM: the technician must find the following Diagnostic Trouble Code (DTC) has been set: ● P0A0A-00 - High Voltage System Interlock Circuit. Customers may also comment on the following: ● The vehicle will not start, both propulsion systems (gas and electric) are inoperable. NOTE: 12V system is still operable. This bulletin involves reprogramming the BPCM with the latest available software.

CHRYSLER · 2026-03-21

Flash: Battery Pack Control Module (BPCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation SYMPTOM: the technician must find the following Diagnostic Trouble Code (DTC) has been set: ● P0A0A-00 - High Voltage System Interlock Circuit. Customers may also comment on the following: ● The vehicle will not start, both propulsion systems (gas and electric), are inoperable. NOTE: 12 volt system still operable. This bulletin involves reprogramming the BPCM with the latest available software.

CHRYSLER · 2026-03-21

Flash: Battery Pack Control Module (BPCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation SYMPTOM: the technician must find the following Diagnostic Trouble Code (DTC) has been set: ● P0A0A-00 - High Voltage System Interlock Circuit. Customers may also comment on the following: ● The vehicle will not start, both propulsion systems (gas and electric), are inoperable. NOTE: 12 volt system still operable. This bulletin involves reprogramming the BPCM with the latest available software.

JEEP · 2026-02-12

Check Engine Light On And Service Hybrid System Displayed. P0A0A-00 High Voltage System Interlock Circuit “A” Is Active

MERCEDES-BENZ · 2025-12-18

Complaint • Vehicle cannot be started • Warning in the instrument cluster related to High-voltage on board electrical system • The following fault codes related to interlock can be found in the High Voltage Control units : • PTCU (N127) : P154700 - There is a warning due to a detected fault in the interlock circuit. • BMS (N82/9) : P0A0B00 - The interlock circuit of the high-voltage on-board electrical system has a malfunction. P0A0D00 - The interlock circuit of the high-voltage on-board electrical system has a short circuit to positive. • DCB (N116/5): P0A0A00 - The interlock circuit of the high-voltage on-board electrical system has an electrical fault. P0A0B00 - The interlock circuit of the high-voltage on-board electrical system has a malfunction. P0A0C00 - The interlock circuit of…

MERCEDES-BENZ · 2025-11-11

Complaint • Vehicle cannot be started • Warning in the instrument cluster related to High-voltage on board electrical system • The following fault codes related to interlock can be found in the High Voltage Control units : • PTCU (N127) : P154700 - There is a warning due to a detected fault in the interlock circuit. • BMS (N82/9) : P0A0B00 - The interlock circuit of the high-voltage on-board electrical system has a malfunction. P0A0D00 - The interlock circuit of the high-voltage on-board electrical system has a short circuit to positive. • DCB (N116/5): P0A0A00 - The interlock circuit of the high-voltage on-board electrical system has an electrical fault. P0A0B00 - The interlock circuit of the high-voltage on-board electrical system has a malfunction. P0A0C00 - The interlock circuit of…

JEEP · 2021-08-05

Possible Water Intrusion at the P1 and P2 High Voltage (HV) Connectors This bulletin involves inspecting and if necessary replacement of the orange seal(s) for the P1&P2 electrical connectors. The customer states that vehicle will not start and has a check engine light on.The following Diagnostic Trouble Codes (DTCs) may be present:P1D72-00 - Open High Voltage Cable. P0A0A-00 - High Voltage System Interlock Circuit A. P0AA6-00 - Hybrid Battery Voltage System Isolation Fault.

JEEP · 2021-05-22

Check Engine Light On And Service Hybrid System Displayed. P0A0A-00 High Voltage System Interlock Circuit ?A? Is Active

SMART · 2018-03-07

Vehicle cannot be started (FC: P0A0A00, P0A0E00, P0D9F00, P1D0BFD, C11C187, P0D5800, P0D5900, P0D9900, P0D9A97)

FORD · 2017-02-17

SOME 2013-2016 C-MAX ENERGI VEHICLES MAY EXHIBIT AN INTERMITTENT STALL/NO CRANK WITH A STOP SAFELY NOW WARNING MESSAGE IN THE INSTRUMENT PANEL CLUSTER (IPC), ILLUMINATED MALFUNCTION INDICATOR LAMP (MIL) WITH BATTERY ENERGY CONTROL MODULE (BECM) DIAGNOSTIC TROUBLE CODES (DTCS) U3012, P0B37 AND/OR SECONDARY ON-BOARD DIAGNOSTIC MODULE-C (SOBDM-C) P0A0A. FOLLOW THE SERVICE PROCEDURE STEPS TO CORRECT THE CONDITION.

FORD · 2016-10-05

SOME 2013-2016 C-MAX PHEV VEHICLES MAY EXHIBIT AN INTERMITTENT STALL/NO CRANK WITH A STOP SAFELY NOW WARNING MESSAGE IN THE INSTRUMENT PANEL CLUSTER (IPC) WITH BATTERY ENERGY CONTROL MODULE (BECM) DTCS U3012,P0B37, AND/OR SECONDARY ON-BOARD DIAGNOSTIC MODULE C(SOBDMC) P0A0A. INSPECT LOW VOLTAGE INTERLOCK CIRCUITS, CYB03 AND CYB04 FOR AN INTERMITTENT SHORT TO GROUND. INSPECT THE CIRCUITS FOR WIRE CHAFING ON THE 10B689 HARNESS NEAR C4002 BETWEEN THE TRACTION BATTERY COVER PLATE AND THE TRACTION BATTERY, REMOVE THE AFFECTED CIRCUIT FROM THE CONNECTOR, APPLY HEAT SHRINK TUBING OVER THE CHAFED AREA OF THE CIRCUIT AND APPLY ANTI-ABRASION TAPE. SECURE THE 10B689 HARNESS TO PREVENT REPEAT OCCURRENCE. USE APPLICABLE LABOR OPERATIONS FROM SECTION 10 OF THE SERVICE LABOR TIME STANDARDS (SLTS) MANUAL.

FORD, LINCOLN · 2012-05-30

FORD/LINCOLN: A DIAGNOSTIC TROUBLE CODE (DTC) P0A0A (HIGH VOLTAGE SYSTEM INTERLOCK CIRCUIT) SHOWS WHEN CERTAIN VEHICLES EXPERIENCE RED TRIANGLE ON/STOP SAFELY NOW MESSAGE AND/OR A CONDITION OF NO START. *PE