Newest Ford special service message on Hybrid 12v Volt Battery Drain Problem

[BlueSpec1]

I don't think the LN1 being an inch longer would fit.

Could be, The LN1 is a bit bigger. If/when I get a Maverick hybrid I'd check.
My BXT99RT4A measures 8-1/8"L x 6-7/8"W x 7-7/16"H, including the mount base.
My LN1AGM measures 8-1/4"L x 7-1/4"W x 7-1/2"H, including the mount base.

Edit: LN1AGM measures 8-1/8"L x 6-7/8"W x 7-7/16"H when out of the battery tray.

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[Darnon]

Could be, The LN1 is a bit bigger. If/when I get a Maverick hybrid I'd check.
My BXT99RT4A measures 8-1/8"L x 6-7/8"W x 7-7/16"H, including the mount base.
My LN1AGM measures 8-1/4"L x 7-1/4"W x 7-1/2"H, including the mount base.

Ah, the NAPA one I looked up in that size might have been in error. It was claiming 9.25" long.

 

[Tailender]

This is my voltage and the truck has not been run for over half an hour. Didn't have the replacent wire done yet either. Guess I got one of the soldered ones that was done correctly? Made April 2022.

 

[Silver23]

This is my voltage and the truck has not been run for over half an hour. Didn't have the replacent wire done yet either. Guess I got one of the soldered ones that was done correctly? Made April 2022.

Now that looks normal.

 

[Keyboard Jack]

This is a follow-up to a previous post (That I can't find). I took my hybrid XLT into the dealer after the battery went dead five different times. Ourisman Ford (NOVA) said the cause was my after-market amp. I took it to the audio shop that installed it. They ran a number of tests and said it was fine. I took it to another dealer (Koons) along with a hardcopy of TSB 22-2340 and summarized CSP 22B39. The dealer handed it off to their "EV Specialist". He ran a bunch of tests read a bunch of error codes then replaced the 300 amp fuse. I picked it up yesterday (8/17/23). Step in the right direction, fingers crossed and I found a service department I can work with.

 

[76rmerry]

There has been some mention posted on here about 12 volt( low voltage system) battery drain and " deep sleep" messages from Ford Pass in Mavericks, today Ford released on the Professional Technician System accessible by Ford technicians this special service message, this may be something to have your dealer check if you are experiencing the problem of no start or dead/low battery. It does not specify that the mega fuse is being " blown" or popped, from my experience as a technician with some of the other models I have seen this mega fuse actually develop a crack ( typically caused by road shock/vibration)which can intermittently allow the loss of electrical charge to the battery, I've had them where they test good with an ohm/continuity meter laying on a bench but then with a little pressure applied to each end will test open. Ford does listen and research complaints/concerns with their vehicles and typically will give us( technicians) a heads up once they find a repetitive cause. Here is the service message, hope it helps some of you!

​

May 4 2023 New SSM 51598 2020-2023 Escape/Corsair, 2022-2023 Maverick – FHEV/PHEV - 12V Battery Voltage Low Or Discharged With DTC U3003:62 Stored In The DC/DC

Some 2020-2023 Escape/Corsair equipped with 2.5L engine full hybrid electric vehicle (FHEV) and plug-in hybrid electric vehicle (PHEV) powertrain and 2022-2023 Maverick vehicles equipped with 2.5L engine FHEV powertrain may exhibit a condition where the 12V battery voltage is low or discharged with diagnostic trouble code (DTC) U3003:62 stored in the direct current/direct current converter control module (DC/DC). The vehicle may also exhibit DTC U3003:16 and/or U3000:04 stored in the DC/DC module. This may be due to an open in the 300 amp mega fuse located in the high current battery junction box (BJB). To correct this condition, refer to Workshop Manual (WSM), Section 414-05>Pinpoint Test H1 to verify the 300amp mega fuse condition, replace the fuse upon confirmation it is open. Test and recharge the 12v battery.

Not sure if everyone fixed the problem but i have a 2022 XL with Eco Boost. Battery was going completely dead in 3 days. After a month of trying to fix the Ford Dealship installed a new GSM unit and reprogramed as the drain was coming from that module. At least i hope it is fixed as i just picked up after being in garage for 3 weeks.

 

[Keyboard Jack]

This is a follow-up to a previous post (That I can't find). On August 2, 2023 I took my hybrid XLT into the dealer after the battery went dead five different times. Ourisman Ford (NOVA) said the cause was my after-market amp I had installed. I took it to the audio shop that installed it. They ran a number of tests and said it was fine. On August 15 I took it to another dealer (Koons Ford, Falls Church, VA) along with a hardcopy of TSB 22-2340 and summarized CSP 22B39. The dealer handed it off to their "EV Specialist". He ran a bunch of tests read a bunch of error codes then replaced the 300 amp fuse.

Follow-up #2: more dead batteries plus check engine light - “The power train control system has detected an electrical fault with the active grille shutter control actuator and its associated wiring.”

Took it back to Koons for service on August 27 and they replaced the main power cable from 12v battery to the battery junction box. The found, “Many codes for low battery in most of the modules (u3000).”

The truck has been running fine since then. Today is October 4. Two good things come out of this: Koons Ford has been great to work with and the truck is running great.

 

[Space]

There has been some mention posted on here about 12 volt( low voltage system) battery drain and " deep sleep" messages from Ford Pass in Mavericks, today Ford released on the Professional Technician System accessible by Ford technicians this special service message, this may be something to have your dealer check if you are experiencing the problem of no start or dead/low battery. It does not specify that the mega fuse is being " blown" or popped, from my experience as a technician with some of the other models I have seen this mega fuse actually develop a crack ( typically caused by road shock/vibration)which can intermittently allow the loss of electrical charge to the battery, I've had them where they test good with an ohm/continuity meter laying on a bench but then with a little pressure applied to each end will test open. Ford does listen and research complaints/concerns with their vehicles and typically will give us( technicians) a heads up once they find a repetitive cause. Here is the service message, hope it helps some of you!

​

May 4 2023 New SSM 51598 2020-2023 Escape/Corsair, 2022-2023 Maverick – FHEV/PHEV - 12V Battery Voltage Low Or Discharged With DTC U3003:62 Stored In The DC/DC

Some 2020-2023 Escape/Corsair equipped with 2.5L engine full hybrid electric vehicle (FHEV) and plug-in hybrid electric vehicle (PHEV) powertrain and 2022-2023 Maverick vehicles equipped with 2.5L engine FHEV powertrain may exhibit a condition where the 12V battery voltage is low or discharged with diagnostic trouble code (DTC) U3003:62 stored in the direct current/direct current converter control module (DC/DC). The vehicle may also exhibit DTC U3003:16 and/or U3000:04 stored in the DC/DC module. This may be due to an open in the 300 amp mega fuse located in the high current battery junction box (BJB). To correct this condition, refer to Workshop Manual (WSM), Section 414-05>Pinpoint Test H1 to verify the 300amp mega fuse condition, replace the fuse upon confirmation it is open. Test and recharge the 12v battery.

I have experienced issues with fuses working intermittently during my past working life. Sometimes you could see the element wiggling around when visually inspected.

 

[Captain Crunch]

I have a question just ordered 2024 XLT Hybrid. There will be a couple of times a year that my Maverick will sit for two months without being cranked. Will this be an issue with the electric engine battery? I know I can keep a maintainer on the gas battery. Thanks..

 

[Triple Brax]

I have a question just ordered 2024 XLT Hybrid. There will be a couple of times a year that my Maverick will sit for two months without being cranked. Will this be an issue with the electric engine battery? I know I can keep a maintainer on the gas battery. Thanks..

I've had no issues with leaving Lariat Hybrid Mavs under carport in middle TN for up to 7 weeks winter and summer. I park, cover, lock & walk away. No trickle charge or starting while gone. Have done the twice a year since 2022. I drive for about 25m for a good charge before parking. So far they both always start right up. I would expect a non start someday as the battery ages.

 

[Captain Crunch]

I've had no issues with leaving Lariat Hybrid Mavs under carport in middle TN for up to 7 weeks winter and summer. I park, cover, lock & walk away. No trickle charge or starting while gone. Have done the twice a year since 2022. I drive for about 25m for a good charge before parking. So far they both always start right up. I would expect a non start someday as the battery ages.

 

[Captain Crunch]

I appreciate it thanks

 

[Silver23]

I have a question just ordered 2024 XLT Hybrid. There will be a couple of times a year that my Maverick will sit for two months without being cranked. Will this be an issue with the electric engine battery? I know I can keep a maintainer on the gas battery. Thanks..

The high voltage battery is ok sitting. They don't loose charge like a lead acid battery. Two months is nothing.

 

[Captain Crunch]

The high voltage battery is ok sitting. They don't loose charge like a lead acid battery. Two months is nothing.

Thanks

 

[TedT]

Thank you for sharing this with the Mav community. Hopefully it is the start of resolving this issue.

My Cactus Gray 2022 Maverick XL hybrid has been in the shop 10 days for electrical issues. The truck was DEAD in my driveway, after being totally fine the day before. No dome light, no instrument panel display. Absolutely nothing. My AAA service guy came and checked battery voltage, which was fine. We used a jump box to get it started, and I drove it to the dealership without incident. While there, the 12 volt battery cable was replaced, per the recall notice (22B39), turn signal outage detection (23C41), instrument panel cluster IPC notification (24C01), and a cracked 200A inline fuse was replaced. When I went to pick the truck up a week ago today after being notified it was ready, I got in, turned the key, and the truck scrolled every fault code imaginable in the center display, and then died.
Over the past several days, the diagnosis has been that there are pinched wires in a main harness, that need to be cut and spliced.
I *LOVE* my truck. I have driven it 36,600 trouble free miles until this happened. I have averaged 42.5 mpg over those 36K miles. It is phenomenal. It has been a bitch this past week not having it. I am *hoping* that the fault has been detected and will be properly repaired.

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