NHTSA ID Number: 10191655
Manufacturer Communication Number: KC-2100
TSB/Document Date: 2021-05-05
Summary
Diagnostic Trouble Code (DTC) P065900 - Actuator Supply Voltage "A" Circuit High - US17+OBD16 Emissions And Newer
5/4/2021
Article
Diagnostic Trouble Code (DTC) P065900 - Actuator
Supply Voltage "A" Circuit High - US17+OBD16
Emissions And Newer
DTC P065900 can be set when the ACM voltage momentarily drops
below 8V. At this voltage, the ACM can set a ‘short circuit high’ fault in
error. In this case, the code is not indicative of an actual short circuit.
However it may indicate that the power to the ACM is compromised.
Typical issues triggering the fault are loose battery nuts or discharged
batteries causing low voltages during cranking.
This issue is expected to be addressed in a future software update, and
this solution will be updated when more information is available.
Initial Checks
This fault can be caused by a loose or faulty connection on battery power
or ground (but not fully disconnected—if fully disconnected, DTCs U116F
and U010E would also be present).
• Check that ALL of the ACM power and ground connections are
securely tightened.
- Ensure battery nuts are tightened to 15 lb-ft (20 Nm).
- Ensure multiple ring terminals on a common stud are fanned out
and lying flat against each other.
- Ensure ring terminals and other contact points are clean of
corrosion and free from any terminal protectant coating or wax.
• If there is no evidence of loose battery connections: Continue to the
checks below.
Other items to check
1. Check the complete battery pack
voltage.
1.1. Start the truck.
1.2. Run the engine at fast idle (1000 RPM) for 1 minute.
; Live UI
13 T
th t
k ff th
t
th k
t th ON
iti
1/3
5/4/2021
Article
1.3. Turn the truck off, then return the key to the ON position.
1.4. Check voltage with all of the batteries still connected to one
another.
• All battery positive terminals are connected together by
busbars or cables, and all battery negative terminals are
connected together.
1.5. Make a note of the voltage and evaluate results:
• For a fully charged system, in good condition, the voltage
should be 12.5V, or higher, for standard flooded lead-acid
batteries, or 12.7V, or higher, for AGM-type batteries.
• Low battery voltage is indicative of a defective battery, an
inadequate charging system, corroded cables, or
contaminated connections.
2. Check individual battery condition.
2.1. Disconnect the busbars and cables.
2.2. Inspect and clean all interconnecting terminals. Ensure there is
no corrosion.
2.3. Check each battery voltage and perform a load test on each
battery individually.
2.4. Evaluate results:
• If one battery's voltage is significantly lower than the
others, or lower than the measurement from Step 1.1.5,
OR fails a load test: The battery may be bad or there may
be a connection issue such as excessive corrosion on the
busbar or terminal, inhibiting proper charging.
2.5. Replace any bad batteries or clean any corroded part as
needed.
2.6. Reconnect the busbars and/or cables.
3. Check the battery pack voltage while charging system is active.
; Live UI 3.1. Start the truck.
https://volvo-trkna-prod1.pegacloud.net/prweb/PRAuth/app/VolvoKM_/iNPUIKpeinqPJi2G0hH930k43USdE1gb*/!TABTHREAD6?pyActivity=%40basec…
2/3
5/4/2021
Article
3.2. Run the engine at fast idle (1000 RPM) for 1 minute.
3.3. With the engine still running, recheck battery voltage:
• Voltage should rise to 13.5-14.5V rapidly.
• If the voltage is less than 13V: Run then engine for an
additional minute and recheck, as the batteries may have
been deeply discharged.
3.4. Evaluate results:
• If the voltage remains less than 13V: There is an issue
with the alternator or the alternator belt.
• If the alternator belt is in good condition, there is an issue
with the alternator.
If there are no issues found from the checks above or the code
continues to log after the steps above are followed, normal
diagnostic steps should be followed in Premium Tech Tool.
Tags
p065900
p0659-00
acm voltage
Related links and attachments
No links or attachments available
Feedback
Give feedback
to help improve the content of this article
3/3
- 💯【Conta.ct us for Support Directly】If you met any...
- 🔥🔥🔥【2026 AUTEL FLAGSHIP MK900BT MK900-BT, NEW...
- 🚗【3000+ ACTIVE TESTS (50➡3000+), SAME AS MS...
- 🚗【40+ HOT SERVICES FOR 150 MAKES (28+➡40+)】Full...
- 🚗【OE ALL SYSTEM DIAGNOSE, AUTO SCAN 2.0: SCAN LICENSE...
- 【TURN OFF CEL】 This AL319 car scanner diagnostic tool...
- 【EXTENSIVE APPLICATION】 Autel AL319 Compatible with...
- 【FOR END USER & DIYERS】 This error code reader AL319 is...
- 【USER-FRIENDLY DESIGN】 This OBD2 scanner and check...
- 【HIGH-QUALITY SERVICES】 12 months war.ranty from the...
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: KC-2100
Replacement Service Bulletin Number:
MFR Communication Date: 2021-04-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
- [Notice] When you receive a used device, it may be a customer return resold by Amazon without inspection. You can exchange it for a new one through Amazon. As this situation is unavoidable, we sincerely apologize. For any issues, contacting us via Amazon's "Messages" is the best way. THINKSCAN 689BT Bidirectional Scan Tool Can Be Used Immediately After It is Turned On, Without Complicated Registration Process, Which is More Convenient & Quick.
- Full Bi-Directional Control & 3000+ Active Tests: Take control and test components like actuators, fuel injectors, relays, and cooling fans in real time. You’ll quickly see if the problem is in the part itself or the control module — saving you hours of guesswork and frustrating trial-and-error.
- Advanced ECU Coding Capabilities: Handle module matching and hidden feature activation with confidence. When you replace an ECU or want to customize settings, this obd2 scanner diagnostic bi directional tool gives you the professional-level capabilities you need without the dealership price tag.
- 34+ Useful Reset and Maintenance Functions: Complete everyday service tasks smoothly with a wide range of helpful reset and maintenance functions. Whether you’re keeping up with regular upkeep or tackling a specific job, this scanner makes maintenance simpler and less stressful for both DIYers and pros.
- Comprehensive Full System Diagnostics: Diagnose every major system — Engine, Transmission, ABS, SRS, TPMS, and more — all in one place. Finally stop wondering if you’re missing something important; get the full picture and clear codes with ease.
- Top Reasons to Choose the D7S OBD2 Scanner: XTOOL D7S car scan tool, an upgrade of XTOOL D7, offers comprehensive features for automotive technicians, workshops, and DIY enthusiasts 1. Upgraded Hardware: 2+64GB memory, rear camera, intuitive interface, foldable bracket 2. Complete Diagnostics: FCA
Autoauth, OE-level all system scan, 39+ maintenance services, 4K+ bidirectional, CANFD/DoIP protocol 3. Advanced Capabilities: ECU c0ding, PMI functions 4. Wide Compatibility: Support 10,000+ models, covering 99% vehicle brands 5. Multi-language: Available in 22+ languages, No IP Restrictions 6. 3-Year Updates: Save 300 bucks on software updates for the latest features and optimizations - 2026 Upgraded D7S Car Scanner Features: The newly 2026 D7S V2.0 scanner for car brings exciting features for advanced vehicle diagnostics and enhanced user experience 1. FCA AutoAuth: Now supports FCA SGW module for Chrysler, for Jeep, for Dodge (2018+), for Fiat (2017+), enabling faster vehicle communication without gateway restrictions 2. PMI (Offline ECU Pr0gramming): Allows for Ford, for Lincoln, and for Mazda ECU pr0gramming for new modules 3. Optimized Diagnostic Report 2.0: Personalized reports with logos and customer info for auto shops. Note: Compatibility varies by cars, please check before order
- 39+ Services/Resets/Adaptations/Relearns/Calibrations: XTOOL D7S full system car scanner diagnostic tool tackles 99% of common car issues through its 36+ special functions, including Oil Reset, EPB, SAS, BMS, Throttle Reset, Injector C0ding, ABS Bleed, TPMS Reset, Power Balance, etc and also covers specific-vehicle functions like Crank Sensor Relearn, ABS Initialization, Cylinder Power Balance, Fuel Trim Reset, Idle Relearn etc. This car diagnostic scanner enhances efficiency, making repairs and maintenance hassle-free. Tip: DO NOT for All vehicles, please check compatibility first
- Cost-effective ECU C0ding Scan Tool for Specific Brands: Enhance your vehicle's performance with XTOOL D7S! This obd2 scanner all systems bidirectional offers advanced capabilities at an affordable price, supports online for BMW, for Benz and offline for BENZ, for MIT, along with PMI functions for Ford, for Mazda, and for Lincoln. Ideal for technicians and DIY enthusiasts, this automotive scanner diagnostic tool optimizes vehicle performance and enhances the driving experience. Note: Not for all cars and modules, please send car VIN to check the compatibility before purchase
- OE All System Diagnostic & 8 Pids Graphing: XTOOL D7S is a comprehensive all system bi directional obd2 scanner that delivers dealer-level diagnostics, completely controlling over your vehicle’s performance and health. This automotive scan tool can read and clear DTCs, view live data and ECU information, retrieve freeze frames, and perform active tests and full obd2 functions. This bi-directional scan tool can can identify your vehicle's make, model, and year information with just one click and show up to 8 PIDs live data with options for CSV viewing, playback, and recording for in-depth analysis. It is easy-to-use for both professionals and beginners, helping pinpoint issues efficiently
- 【✅Compared to BOSSCOMM IF742, IF745 Offers Full-System Diagnostics】The BOSSCOMM IF745 car diagnostic scanner is an upgraded model of IF742. In addition to supporting all OBD2 Code Reader functions and 6 reset options (ABS/EPB/SAS/BMS/Oil/Throttle), it expands diagnostics from 4 systems (Check Engine/ABS/SRS/Transmission) to vehicle All systems, including Steering, Suspension, and Body Electronics. This provides deeper, more comprehensive diagnostic capabilities.
- 【✨10 OBD2 Functions】The BOSSCOMM IF745 scan tool’s DTC Lookup instantly translates fault codes into user-friendly explanations, its I/M Readiness feature streamlines emissions testing with a single tap, and Freeze Frame lets you pinpoint the exact moment of a fault for in-depth root-cause diagnosis. Combined with a live data dashboard and advanced diagnostics (O2S, OBMon, EVAP), it delivers comprehensive insights for confident troubleshooting.
- 【✨Deep Diagnostics for All Vehicle System Modules】Beyond code reading/clearing and ECU information retrieval, our all-in-one data stream feature lets you inspect all current fault codes and their locations across the vehicle’s systems. This vehicle code reader helps you turn off dashboard warning lights and perform a comprehensive self-check of your car at home—no more back-and-forth trips to the repair shop or hefty inspection fees.
- 【✨6 Essential Resets: ABS Bleeding, Oil, EPB, SAS, Throttle, BMS】The BOSSCOMM IF745 obd2 scanner diagnostic tool swiftly purges air from brake lines to restore braking sensitivity, fine-tunes maintenance cycles to eliminate false alerts, resolves parking brake issues with one-click control, recalibrates steering sensors for stability, optimizes engine idling/acceleration for smoother performance, and deeply resets battery systems to extend lifespan and range via precise parameter adjustments.❗NOTE: Does NOT support bidirectional control, coding, or programming.
- 【✨10,000+ Car Models, AutoVIN, 13 Languages】The BOSSCOMM IF745 vehicle scanner diagnostic tool covers 73+ global car brands and offers support in 13 languages, making it perfect for DIYers, auto mechanics, or as a thoughtful gift. With a single-click AutoVIN feature, it instantly retrieves vehicle serial numbers, streamlining diagnostics for users globally. This adaptable tool balances user-friendliness with precision, catering to both personal and professional requirements.✅Unsure about compatibility? Compatibility will vary on vehicles' model and year, pls reach us via 📧 [email protected] 📧 before purchase.
This product presentation was made with AAWP plugin.