NHTSA ID Number: 10242851
Manufacturer Communication Number: TSB 23-2279
Summary
Some 2021-2023 F-150 vehicles equipped with a 3.5L hybrid engine, 2020-2023 Explorer vehicles equipped with a 3.3L hybrid engine and 2020-2023 Aviator vehicles equipped with a 3.0L hybrid engine may exhibit a powertrain malfunction indicator lamp with diagnostic trouble code (DTC) P0A1E stored in the powertrain control module (PCM). This may be due to the belt integrated starter generator (BISG). To correct this condition, follow the Service Procedure to diagnose and repair this symptom.
Model:
Issue: Some 2021-2023 F-150 vehicles equipped with a 3.5L hybrid engine, 2020-2023 Explorer vehicles equipped with a 3.3L hybrid engine and 2020-2023 Aviator vehicles equipped with a 3.0L hybrid engine may exhibit a powertrain malfunction indicator lamp with diagnostic trouble code (DTC) P0A1E stored in the powertrain control module (PCM). This may be due to the belt integrated starter generator (BISG). To correct this condition, follow the Service Procedure to diagnose and repair this symptom.
Action: Follow the Service Procedure to correct the condition on vehicles that meet all of the following criteria:
- One of the following vehicles:
- Has DTC P0A1E stored in the PCM
Parts
| Service Part Number | Package Order Quantity | Description |
BAGM-94RH7-800 | 1 | Battery (800 Amp) – Refer To The Parts Catalog For The VIN Specific Application |
| BAGM-48H6-760 | 1 | Battery (760 Amp) – Refer To The Parts Catalog For The VIN Specific Application |
| BAGM-49H8 | 1 | Battery (850 Amp) – Refer To The Parts Catalog For The VIN Specific Application |
| BXT-94RH7-730 | 1 | Battery (730 Amp) – Refer To The Parts Catalog For The VIN Specific Application |
| 11A213 | 1 | Starter And Alternator Assembly – Refer To The Parts Catalog For The VIN Specific Application |
Service Procedure
1. Perform only the first step of the Workshop Manual (WSM) pinpoint test for P0A1E:00.
- For F-150 vehicles, perform WSM, Section 303-06 Starting System, Diagnosis and Testing, Starting System, Pinpoint Test G, Step G1.
- For Explorer/Aviator vehicles, WSM, Section 303-06 Starting System, Diagnosis and Testing, Starting System, perform Pinpoint Test I, Step I1.
2. Was the BISG replaced in WSM Step G1/I1?
(1). Yes – repair is complete.
(2). No – proceed to Step 3.
3. Perform the second step of the WSM pinpoint test for P0A1E:00.
- For F-150 vehicles, perform WSM, Section 303-06 Starting System, Diagnosis and Testing, Starting System, Pinpoint Test G, Step G2.
- For Explorer/Aviator vehicles, WSM, Section 303-06 Starting System, Diagnosis and Testing, Starting System, perform Pinpoint Test I, Step I2.
4. Was the battery replaced during Step G2/I2?
(1). Yes – repair is complete.
(2). No – proceed to Step 5.
5. At the 12V battery negative post, inspect the nut securing the battery monitoring sensor to the negative battery post. (Figures 1-2) If it is loose, tighten the nut to the specified tightening value. Refer to WSM, Section 414-01 Battery, Mounting and Cables, General Procedures, Battery Disconnect and Connect.
Figure 1 – F-150
Figure 2 – Explorer/Aviator
6. At the battery monitoring sensor, inspect the nut attaching the sensor to the ground cable. (Figure 3) If it is loose, tighten the nut to the specified tightening value. Refer to WSM, Section 414-01 Battery, Mounting and Cables, Removal and Installation, Battery Monitoring Sensor.
Figure 3
7. At the 12V battery positive post, inspect the nut securing the positive battery cable to the post. (Figures 4-5) If it is loose, tighten the nut to the specified tightening value. Refer to WSM, Section 414-01 Battery, Mounting and Cables, General Procedures, Battery Disconnect and Connect.
Figure 4 – F-150
Figure 5 – Explorer/Aviator
8. At the 12V battery positive post, inspect the nut securing the positive cable eyelet lug. (Figures 6-7) If it is loose, tighten the nut to the specified tightening value. Refer to 414-01, Battery, Mounting and Mounting Cables, Removal and Installation.
Figure 6 – F-150
Figure 7 – Explorer/Aviator
9. Inspect engine ground G105. (Figures 8-10) Refer to Wiring Diagram, Cell 010, G105. If it is loose, tighten the bolt to the specified tightening value.
Figure 8 – F-150
Figure 9 – Explorer
Figure 10 – Aviator
10. Were any of the nuts/bolts inspected in Steps 3-7 loose or less than their specified tightening value?
- Yes – connections were repaired, repair is complete.
- No – replace the BISG. Refer to WSM, Section 414-02 Generator and Regulator, Removal and Installation.
11 Affected Products
Vehicles
1 Associated Document
Manufacturer Communications
23-2279
31 August 2023
MC-10242851-0001.pdf 412.976KB
NHTSA ID Number: 10250306
Manufacturer Communication Number: SSM 52244
Summary
Some 2021-2023 F-150 vehicles equipped with a 3.5L PowerBoost hybrid engine, 2020-2023 Explorer vehicles equipped with a 3.3L hybrid engine and 2020-2023 Aviator vehicles equipped with a 3.0L hybrid engine may exhibit a malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0A1E stored in the powertrain control module (PCM) and auto start/stop disabled. This may be due to a loose wiring connection to the belt integrated starter generator (BISG). The Workshop Manual (WSM) has recently been updated to provide new direction for DTC P0A1E. Refer to the WSM, Section 303-06 Starting System, Diagnosis and Testing, Starting System for applicable diagnosis.
1 Associated Document
Manufacturer Communications
SSM 52244 2021-2023 F-150, 2020-2023 Explorer/Aviator – Equipped With Hybrid Engines – Illuminated MIL With DTC P0A1E In The PCM
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TECHNICAL SERVICE BULLETIN
Equipped With Hybrid Engines – Illuminated Powertrain Malfunction Indicator Lamp With DTC P0A1E In The PCM
23-2279
31 August
2023 Model:
Ford
2020-2023 Explorer Engine: 3.3L Hybrid 2021-2023 F-150
Lincoln
2020-2023 Aviator Engine: 3.5L Hybrid Engine: 3.0L Hybrid Issue: Some 2021-2023 F-150 vehicles equipped with a 3.5L hybrid engine, 2020-2023 Explorer vehicles equipped with a 3.3L hybrid engine and 2020-2023 Aviator vehicles equipped with a 3.0L hybrid engine may exhibit a powertrain malfunction indicator lamp with diagnostic trouble code (DTC) P0A1E stored in the powertrain control module (PCM). This may be due to the belt integrated starter generator (BISG). To correct this condition, follow the Service Procedure to diagnose and repair this symptom.
Action: Follow the Service Procedure to correct the condition on vehicles that meet all of the following criteria:
• One of the following vehicles:
– 2021-2023 F-150 equipped with a 3.5L hybrid engine
– 2020-2023 Explorer equipped with a 3.3L hybrid engine
– 2020-2023 Aviator equipped with a 3.0L hybrid engine
• Has DTC P0A1E stored in the PCM Parts
Service Part Number Package Order Quantity Description BAGM-94RH7- 800
BAGM-48H6-760 BAGM-49H8 BXT-94RH7-730 11A213 1 Battery (800 Amp) – Refer To The Parts Catalog For The VIN Specific Application
1 Battery (760 Amp) – Refer To The Parts Catalog For The VIN Specific Application
1 Battery (850 Amp) – Refer To The Parts Catalog For The VIN Specific Application
1 Battery (730 Amp) – Refer To The Parts Catalog For The VIN Specific Application
1 Starter And Alternator Assembly – Refer To The Parts Catalog For The VIN Specific Application Warranty Status: Eligible under provisions of New Vehicle Limited Warranty (NVLW)/Emissions Warranty/Service Part Warranty (SPW)/Special Service Part (SSP)/Extended Service Plan (ESP) coverage. Limits/policies/prior approvals are not altered by a TSB. NVLW/Emissions Warranty/SPW/SSP/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.
Labor Times Description Diagnose And Repair Vehicle Following The Service Procedure (Do Not Use With Any Other Labor Operations) Operation No.
MT232279 Time Actual Time
Repair/Claim Coding Causal Part: Condition Code: 11A213
42 Service Procedure
1. Perform only the first step of the Workshop Manual (WSM) pinpoint test for P0A1E:00.
For F-150 vehicles, perform WSM, Section 303-06 Starting System, Diagnosis and Testing, Starting System, Pinpoint Test G, Step G1.
For Explorer/Aviator vehicles, WSM, Section 303-06 Starting System, Diagnosis and Testing, Starting System, perform Pinpoint Test I, Step I1.
2. Was the BISG replaced in WSM Step G1/I1? (1). Yes – repair is complete.
(2). No – proceed to Step 3.
3. Perform the second step of the WSM pinpoint test for P0A1E:00.
For F-150 vehicles, perform WSM, Section 303-06 Starting System, Diagnosis and Testing, Starting System, Pinpoint Test G, Step G2.
For Explorer/Aviator vehicles, WSM, Section 303-06 Starting System, Diagnosis and Testing, Starting System, perform Pinpoint Test I, Step I2.
4. Was the battery replaced during Step G2/I2? (1). Yes – repair is complete.
(2). No – proceed to Step 5.
5. At the 12V battery negative post, inspect the nut securing the battery monitoring sensor to the negative battery post. (Figures 1-2) If it is loose, tighten the nut to the specified tightening value. Refer to WSM, Section 414-01 Battery, Mounting and Cables, General Procedures, Battery Disconnect and Connect.
For F-150 vehicles with a 3.5L hybrid engine, tighten to 55 lb.in (6.2 Nm).
For Explorer/Aviator vehicles equipped with a hybrid engine, tighten to 48 lb.in (5.4 Nm). Figure 1 – F-150 Figure 2 – Explorer/Aviator 6. At the battery monitoring sensor, inspect the nut attaching the sensor to the ground cable. (Figure 3) If it is loose, tighten the nut to the specified tightening value. Refer to WSM, Section 414-01 Battery, Mounting and Cables, Removal and Installation, Battery Monitoring Sensor.
For F-150 vehicles with a 3.5L hybrid engine, tighten to 97 lb.in (11 Nm).
For Explorer/Aviator vehicles equipped with a hybrid engine, tighten to 80 lb.in (9 Nm). Figure 3 7. At the 12V battery positive post, inspect the nut securing the positive battery cable to the post. (Figures 4-5) If it is loose, tighten the nut to the specified tightening value. Refer to WSM, Section 414-01 Battery, Mounting and Cables, General Procedures, Battery Disconnect and Connect.
For F-150 vehicles with a 3.5L hybrid engine, tighten to 55 lb.in (6.2 Nm).
For Explorer/Aviator vehicles equipped with a hybrid engine, tighten to 48 lb.in (5.4 Nm). Figure 4 – F-150 Figure 5 – Explorer/Aviator 8. At the 12V battery positive post, inspect the nut securing the positive cable eyelet lug. (Figures 6-7) If it is loose, tighten the nut to the specified tightening value. Refer to 414-01, Battery, Mounting and Mounting Cables, Removal and Installation.
For F-150 vehicles with a 3.5L hybrid engine, tighten to 80 lb.in (9 Nm).
For Explorer/Aviator vehicles equipped with a hybrid engine: 80 lb.in (9 Nm). Figure 6 – F-150 Figure 7 – Explorer/Aviator 9. Inspect engine ground G105. (Figures 8-10) Refer to Wiring Diagram, Cell 010, G105. If it is loose, tighten the bolt to the specified tightening value.
For F-150 vehicles with a 3.5L hybrid engine, tighten to 35 lb.ft (48 Nm).
For Explorer/Aviator vehicles equipped with a hybrid engine, tighten to 106 lb.in (12 Nm). Figure 8 – F-150 Figure 9 – Explorer Figure 10 – Aviator 10. Were any of the nuts/bolts inspected in Steps 3-7 loose or less than their specified tightening value? Yes – connections were repaired, repair is complete.
No – replace the BISG. Refer to WSM, Section 414-02 Generator and Regulator, Removal and Installation. © 2023 Ford Motor Company All rights reserved.
NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by “do-it-yourselfers”. Do not assume that a condition described affects your car or truck. Contact a Ford or Lincoln dealership to determine whether the Bulletin applies to your vehicle. Warranty Policy and Extended Service Plan documentation determine Warranty and/or Extended Service Plan coverage unless stated otherwise in the TSB article. The information in this Technical Service Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves the right de this information with updates. The most recent information is available through Ford Motor Company’s on-line technical resources.
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