P25a2 chevy volt

To diagnose the P25A2 Chevrolet code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

P25a2 chevy volt. 0:00 / 13:40. Chevy Volt ABS Sensor Replacement for Stabilitrak Issue, P25A2 code. Fix It Scotty. 3.08K subscribers. Subscribe. 5.5K views 1 year ago. After failing to fix the P25A2 …

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In this video TDM investigates a MIL on the 2017 Chevrolet Volt. So what is wrong and can it be fixed with just a reset?Want an official Disgruntled Mechanic...P25a2 U0146 U0101 U0100 mil status- off freeze frame dtc- U0146 i had an oil change done by hare chevy in noblesville 2 weeks ago, never an issue with my truck until after i left the dealership. Stanley chevy in mccordsville looked at it this morning and said they have to order a bunch of parts for it, including new leaf springs for a truck that is less than 2 …P25a2 U0146 U0101 U0100 mil status- off freeze frame dtc- U0146 i had an oil change done by hare chevy in noblesville 2 weeks ago, never an issue with my truck until after i left the dealership. Stanley chevy in mccordsville looked at it this morning and said they have to order a bunch of parts for it, including new leaf springs for a truck that is less than 2 …Re: Coolant bypass valve part defective part #13529523 on my 2019 Chevy Volt.. I included a picture of the repaired cable, when this did not resolved engine code P26A8 The dealer then replaced the defective Coolant bypass valve. My out of pocket cost was $331.31 including a $76 discount for the refused under warranty part and repair. 1.16K subscribers in the volt community. Chevy Volt news and discussion. Advertisement Coins. 0 coins. Premium Powerups Explore Gaming. Valheim Genshin ... P25A2 - 12v Battery issue? - might be bad, getting it tested P25C9 - Associated with ABS, …Description of the Complaint: The contact owns a 2019 chevrolet silverado 1500. While driving 15 mph, the contact attempted to make a right turn and the brakes failed to engage. Also, the brake warning indicator illuminated. The contact allowed the vehicle to idle, pulled into a parking lot, and came to a stop.

19-86 all-electric miles. $10K - $30K. 4.8/ 5. The Chevy Volt is a hybrid electric plug-in vehicle that is EPA-rated for either 38 or 53 miles of all electric range when new, depending on model year. Chevy considers the Volt an extended range electric, but it is commonly referred to a “series” hybrid, meaning that it runs on exclusively ...From my receipt: Code engine P25A2 caused by C05b1 and C0574 Part 84309575 SLN module kit Part 84570256 Module Part of the following campaign: ... A forum community dedicated to Chevy Volt electric car owners and enthusiasts. Come join the discussion about hybrid performance, modifications, classifieds, troubleshooting, …Nov 20, 2022 · Addressing Chevrolet Volt's 2017 to 2019 speed sensor issues that can generate Stabilitrac warnings and can generate codes: C0506, C0507, P215B, P25A2Officia... P25A2 - 2021 Chevrolet Silverado Custom Trail Boss. Dang, I did read through the forums someones whole top end got redone, also read there was a brake module replaced. Those are the messages that popped up when one of my lifters went. I was at 9900 miles so probably is that.9-yan, 2013 ... Bonjour,. J'ai une volt 2014 et je n'ai plus de chauffage. Je suis pas mal déçu car allait bien avec ce véhicule et avec l ...2017 CEL Flashing, Engine Shaking (on Freeway) - P0301, P25A2, P059F, U0100. About a month ago, I was driving the car on the freeway and had put it on Hold mode to preserve battery range (and keep myself warm because winter), and after about 30 seconds or so, the CEL came on and began flashing at me.If you are in the market for a reliable and stylish rental car, Chevy has a range of options to suit your needs. From compact cars to SUVs, Chevy has a car rental model to fit every lifestyle.Important: When programming a module in GM's new Vehicle Intelligence Platform, or VIP, the power mode (ignition) needs to be off or errors may occur. This involves the 2020 Chevrolet Corvette, Cadillac CT5 and CT4, as well as the upcoming full-size Chevrolet, GMC, Cadillac SUVs and Buick Envision. Serial Data Message Authentication also ...

Chevrolet GM OEM Cruze Drive-Front Suspension-Axle Assembly Washer 11611964. $2.18. +$6.00 shipping.I read the codes and I get P25A2, C0507 and U0415. After some searching I find a TSB (and several threads and videos) that point to replacement of the ABS wheel speed sensors. Seems they are in line with a washer that can cut them up. Pulled everything apart, replaced both front sensors for good measure even though it was coding for front right.P25a2 U0146 U0101 U0100 mil status- off freeze frame dtc- U0146 i had an oil change done by hare chevy in noblesville 2 weeks ago, never an issue with my truck until after i left the dealership. Stanley chevy in mccordsville looked at it this morning and said they have to order a bunch of parts for it, including new leaf springs for a truck that is less than 2 …Oct 23, 2023 · I just purchased a 2017 Volt and about 100 miles in my check engine light came on. when I ran the codes, this is what came up. 1/6 U0073 (CAN Bus Communication) 2/6 P0AC4 Hybrid Powertrain Control Module 3/6 P25A2 (Brake system control module 1) 4/6 P25C9 (Brake Control module 2)... Labor: 1.0. To diagnose the C056E Chevrolet code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

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2K views 1 year ago. In this video, I show how to fix the ABS / Traction Control / Stabilitrak warning light (P25A2 error code) as well as do a full front brake job replacing the pads and rotors.Chevy Volt Front Brakes and Wheel Hub Replacement for Stabilitrak Issue. In this video, I show how to fix the ABS / Traction Control / Stabilitrak warning ...One month with the car and everything was working good until now that the snow hit hard in Michigan. 2017 Volt LT Check Engine came on, throw code P25C9, I cannot find a lot of information related to it. Took it to the dealership and of course the light went off. They cannot replicate the issue... P25A2 - 2021 Chevrolet Silverado Custom Trail Boss. Dang, I did read through the forums someones whole top end got redone, also read there was a brake module replaced. Those are the messages that popped up when one of my lifters went. I was at 9900 miles so probably is that.Hello everyone! Welcome to @AutoScholarwithMrB and today we are talking about our diagnostic of this Chevrolet Volt. This was a relatively easy fix, but all...

To diagnose the P25A2 Chevrolet code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.2017 Volt Code P25A2 C050C ABS, check engine, and stabilitrack lights are on. I'm having an issue with my 2017 Volt premier, the codes that show indicate a LH rear wheel speed sensor. I've changed the sensor, no fix. I swapped the wheel hubs to see if the fault would follow over to the right side, still showing C050C for LH rear wheel speed sensor.Labor: 1.0. The cost to diagnose the P25A2 GMC code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour. Chevrolet Silverado 1500 (New Model) 2019 2019 Equipped with 5.3L L82, 5.3L L84, 6.2L L87, 4.3L LV3, 2.7L L3B, or 3.0L LM2 Silverado 1500 2020 2021 Suburban 2021 2021 3.0L LM2 Tahoe 2021 2021 3.0L LM2 GMC Sierra 1500 (New Model) 2019 2019 Equipped with 5.3L L82, 5.3L L84, 6.2L L87, 4.3L LV3, 2.7L L3B, or 3.0L LM2 Sierra 1500 2020 2021 Yukon ...Labor: 1.0. The cost to diagnose the P25A2 GMC code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto …Ignition Voltage > 11.0 volts Engine Speed > 400 RPM 250 ms / sample Continuous Heater Resistance outside of the expected range of 7.0 < < 13.0 No Active DTC's ECT_Sensor_FA P2610 IAT_SensorFA Once per valid cold start Coolant – IAT < 8.0 ºC Engine Soak Time > 28800 seconds Coolant Temp -30.0 < ºC < 45.0 Ignition Voltage < 32.0 voltsOne of the two AAT wires receives about 4.6 volts from the ECM/PCM, Instrument Cluster, Body Computer, etc. and the other wire is a reference ground, also from the module the sensor reports to. The reason it’s slightly less than the 5 volts delivered to three wire sensors is that there is a resistor inside the ECM/PCM on each two-wire …In this video, I show how to fix the ABS / Traction Control / Stabilitrak warning light (P25A2 error code) as well as do a full front brake job replacing the...Nov 20, 2022 · Addressing Chevrolet Volt's 2017 to 2019 speed sensor issues that can generate Stabilitrac warnings and can generate codes: C0506, C0507, P215B, P25A2Officia...

Jul 15, 2022 · Labor: 1.0. To diagnose the P25A2 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

The serial data message sent by the module also contains a request for the ECM to illuminate the Malfunction Indicator Lamp (MIL). The DTC will be set when the ECM receives a serial data message from the Brake System Control Module indicating that DTC has been set in the module. P25A2 Code - Brake System Control Module Requested MIL Illumination. Volt; Future Chevrolet Models; ... The AFM/DFM disabler is a plug-in module that deactivates the AFM and DFM systems in V6- and V8-powered GM vehicles. ... I guess that would explain the P25a2 ...The 2014 Chevy Equinox is a reliable and dependable SUV that has been a favorite among drivers for years. But how long can you expect it to last? Here, we’ll explore the expected lifespan of a 2014 Chevy Equinox and provide tips on how to e...There are 850 used Chevrolet Volt vehicles for sale near you, with an average cost of $17,467. Edmunds found one or more Great deals on a used Chevrolet Volt near you, starting at $13,900. That's ...P25a2 u0146 u0101 u0100 mil status- off freeze frame dtc- u0146 I had an oil ... Volt. ☆ Safety Ratings of Silverado 1500 Cars. ☘ Silverado 1500 Service ...The 2020 Chevrolet Silverado 1500 has 8 NHTSA complaints for ... Volt; switch years. 2021; 2020; 2019; ... And brake pedal was really hard again. Call onstar for a diagnostic and code came up ...First, if Chevy reuses codes, P25A2 is brakes/ABS issue (on a 2017 Camaro.) P25A2 Brake System Control Module Requested MIL . And C0501 is I believe “Steering assist control solenoid/motor/actuator return circuit malfunction” And the award for the stupidest suggestion for C0501 code repair goes to...

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In this video TDM investigates a MIL on the 2017 Chevrolet Volt. So what is wrong and can it be fixed with just a reset?Want an official Disgruntled Mechanic... Feb 12, 2023 · Steering assist, Service power steering, Trailer brake, Service traction control, Service Esc, etc. See video attached. I took it to Autozone and had them scan it. It showed 2 codes: P25A2 Brake System Control Module Requested MIL Illumination and U0139 Network Communication - Reserved by Document 13. I just purchased a 2017 Volt and about 100 miles in my check engine light came on. when I ran the codes, this is what came up. 1/6 U0073 (CAN Bus Communication) 2/6 P0AC4 Hybrid Powertrain Control Module 3/6 P25A2 (Brake system control module 1) 4/6 P25C9 (Brake Control module 2)...Join the Volt discussion to chat with electric vehicle owners and enthusiasts around the globe. Log in / Register. Menu Recent Posts. Forums. Forums. Quick Links. ... Installing BlackVue Power Magic Pro on 2015 Chevy Volt. Rockin' Kat, Jul 11, 2020. Replies: 1 Views: 2,692. Rockin' Kat Jul 11, 2020. Increasing regen. deanis, Jan 25 ...Silverado 1500. 104,000 miles. A D V E R T I S E M E N T S. The contact owns a 2019 Chevrolet Silverado 1500. The contact stated while driving 60 MPH, the vehicle lost motive power with the engine ...Jeff N · #4 · Nov 12, 2015. The "check engine" light is an all-purpose indicator that sometimes signals temporary indications that emission controls might not be in full compliance even though the car appears to be running fine. One example, might be failing to properly tighten the gas cap after refueling the car.2017 Volt Code P25A2 C050C ABS, check engine, and stabilitrack lights are on. I'm having an issue with my 2017 Volt premier, the codes that show indicate a LH rear wheel speed sensor. I've changed the sensor, no fix. I swapped the wheel hubs to see if the fault would follow over to the right side, still showing C050C for LH rear wheel speed sensor. ... chevy s10 fuse box, Angeloide ikaros, Why did reformation happen, Marathi ... p25a2! Beyaz camuzcu! Serf uw madison hours, Maiores micos do facebook ...Important: For 2013-14 Buick Lacrosse, 2013-14 Buick Regal, 2014 Chevrolet Impala E, or 2013-14 Chevrolet Malibu, If the wheel bearing encoder ring is damaged, replace the wheel bearing and follow Bulletin 16-NA-348. Caution: Take care not to damage the bearing outer seal when brushing and/or cleaning the magnetic encoder debris. Labor: 1.0. The cost to diagnose the P25A2 GMC code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour. Apr 18, 2022 · I have a 2017 Volt. My dashboard ABS and Engine Light came on. Upon further research, codes P25A2, C0500, and C0501 were triggered. I have seen some threads in this forum about this, but here is what is different with me: the car started pumping the brakes on its own. Not like the quick... 2019 Silverado 1500 LT Code P25A2,U0146,U0100,U0101 My wife was driving the truck around and the check engine light came on. Put the code reader and got these 4 codes. ….

Connecting two 12-volt batteries in series adds their individual voltages together to create a 24-volt battery pack. The series arrangement does not increase the capacity of the batteries.The following TSBs of Cadillac are related to DTC P25A2. 2020 Cadillac CT4 Adaptive Mobility Equipment TSB Details …. 2020 Cadillac CT4 Electrical System TSB Details …. 2020 Cadillac CT4 Forward Collision Avoidance Sensing System Camera TSB Details ….Generation 1 Chevy Volt (2011-2015) Problems, Driver Warnings or DTCs - Gen 1 Volt. GM Manual with all DTC/Trouble codes for the Volt. Jump to Latest Follow 55K views 31 replies 19 participants last post by SkiAustin May 8, …VW Golf 5, 2.0 Many codes P1637 P1570 U0146 U0164 etc Hi. I have a Golf 5 giving me troubles. It starts and immediately cuts off. I scanned the car and it gave me the following errors: U0155 P0071 U0164 P1637 U0146 P1570 P0408 I am trying to follow instructions but still makes the same.It took nearly four more years, but the first Volt — a longer-range version of a plug-in hybrid — rolled off the assembly line late in 2010. GM had hopes that customers would be ready for a ...What does DTC P25A2-00 and U3003-00 mean in the - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them.Dtc code P0AC4 and P25C9 on my 2017 chevy volt. Mechanic's Assistant: Just to clarify, what's the exact code? And have you tried to reset it? I think those are the codes following intermittand engine light. It was off during dx reading. No resetting that I'm aware of. …2017 Chevrolet Volt Technical Service Bulletins. Your path: TSB Home >> 2017 >> 2017 Chevrolet >> 2017 Chevrolet Volt The following TSB(s) may apply to your 2017 Chevrolet Volt. The source of the information below is the National Highway Transportation Safety Administration (NHTSA), which maintains TSBs for vehicles sold in the United States.If … P25a2 chevy volt, If you are in the market for a reliable and stylish rental car, Chevy has a range of options to suit your needs. From compact cars to SUVs, Chevy has a car rental model to fit every lifestyle., Description 📷. Add Comment. What does this mean? What are the Possible Causes of the DTC P25A2? NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes. Check Brake …, Aug 24, 2021 · And the kids! Hello - I've had the dreaded BECM failure on my 2017 Volt. 48,000 miles - started getting warnings about propulsion - battery range showing zero miles, despite also showing full - eventually died completely. Unable to drive even just on IC. Towed to dealer, took a week to diagnose as failed BECM. , Hello, 2 weeks ago I 've got MIL and DTC's U2603, U2604, U2605, U2606, U2617, U2618, U2619, U2620, U2621, U2622, U2623 and U2624. My 2016 Chevrolet Volt has 30k kilometers, but unfortunately I brought it to Europe, to Poland and I have no warranty. SO I bought used BECM from ebay with hope..., Garage Opel Chevrolet reviews 3. Sort by: date highest rated lowest rated most helpful. Tarik. 08 June 2018 1:12. Situé rue omar slaoui, angle mers sultan à Casablanca. Le Garage Opel Chevrolet est avant tout un concessionnaire automobile D'Opel Chevrolet et Suzuki., 2017 Chevy Volt, 73224 Miles. DTC Codes P1E00, U2619-U2624. The vehicle will start, and I can shift but the vehicle will - Answered by a verified Chevy Mechanic. We use cookies to give you the best possible experience on our website., If you’re looking into buying a dependable new or used truck, you’ve likely come across the 2020 Chevy Silverado in your search. The Silverado is consistently one of the most popular pickup trucks in the country, second only to Ford’s iconi..., Jul 16, 2019 · 12 posts · Joined 2019. #1 · Jul 16, 2019. I have only had one problem with my 2018 Volt. I purchased it in Scottsdale, Arizona and during the hot time of year the Stabilitrak, brake light and service light would come on. This would be only in the hot season and mostly with the gasoline engine being used. I took it to Van's Chevy in ... , The batteries are very different in size, which makes sense because of the hybrid and fully electric difference. The Chevy Bolt has a 60 kilowatt-hours battery, while the Chevy Volt has an 18.4 kilowatt-hours battery. A typical gas-powered car gets replaced roughly every three to five-years., Important: For 2013-14 Buick Lacrosse, 2013-14 Buick Regal, 2014 Chevrolet Impala E, or 2013-14 Chevrolet Malibu, If the wheel bearing encoder ring is damaged, replace the wheel bearing and follow Bulletin 16-NA-348. Caution: Take care not to damage the bearing outer seal when brushing and/or cleaning the magnetic encoder debris., Aug 27, 2019 · Chevy Mechanic: GM Tech (Cam), Chevy Technician replied 4 years ago Ok, so I found the codes, P0ac4, there are bulletins that outline a software update to fix that. P25C9 is set because the ABS is requesting it. , First, if Chevy reuses codes, P25A2 is brakes/ABS issue (on a 2017 Camaro.) P25A2 Brake System Control Module Requested MIL . And C0501 is I believe “Steering assist control solenoid/motor/actuator return circuit malfunction” And the award for the stupidest suggestion for C0501 code repair goes to... , Oct 23, 2023 · I just purchased a 2017 Volt and about 100 miles in my check engine light came on. when I ran the codes, this is what came up. 1/6 U0073 (CAN Bus Communication) 2/6 P0AC4 Hybrid Powertrain Control Module 3/6 P25A2 (Brake system control module 1) 4/6 P25C9 (Brake Control module 2)... , Chevy Volt news and discussion. Premium Explore Gaming ... The P25A2 code is set by the ECMs to turn the check engine light on. It is not a fault, and will go away if ..., GM General Motors OBD-II Diagnostic Trouble Codes. General Motors OBD-II Trouble Codes. The OBD-II DTC codes here generally apply to all OBD-II GM vehicles from 1996 and newer: GMC, Chevrolet, Buick, Cadillac, and former brands Oldsmobile, Pontiac, and Saturn.There may be slight changes depending on the year/model of vehicle, you would …, Bill Stasek Website: http://www.stasekchevrolet.com/ Like us on Facebook: https://www.facebook.com/pages/Bill-Stasek-Chevrolet/ Follow us on Twitter: https:/..., Sep 9, 2016 · P25A2 is really no big deal as it's essentially the braking system's equivalent of the P1E00 set when HPCM2 detects a fault and requests the MIL C05AD is "Brake Blending Performance" and appears to indicate incorrect hydraulic pressures in the master cylinder and/or brake lines being detected under specific conditions when the brake pedal is NOT applied. , Apr 9, 2020 · Volt. 2019. When receiving the ODB code p1e00 on Your Chevy Volt, You are likely experiencing an issue with the battery. Generally, that sequence indicates a generic electrical system problem. The message is almost always found concurrently with at least one other. Often, in this situation, Volt owners report that the car will not hold a charge ... , Important: For 2013-14 Buick Lacrosse, 2013-14 Buick Regal, 2014 Chevrolet Impala E, or 2013-14 Chevrolet Malibu, If the wheel bearing encoder ring is damaged, replace the wheel bearing and follow Bulletin 16-NA-348. Caution: Take care not to damage the bearing outer seal when brushing and/or cleaning the magnetic encoder debris. , 29 posts · Joined 2017. #1 · Nov 18, 2018. Hello, Check Engine light came on Volt 2017 Gen 2.. Using OBS2 diagnostic tool it had 5 "unknown" codes: POD 3E, P25a2, Co513, Co515, Co516., The P25A2 code is a generic diagnostic trouble code (DTC) defined as “Brake System Control Module Requested MIL Illumination.” This code is not specific to any particular vehicle make or model, but it is commonly triggered in GM vehicles such as the Chevy Silverado, Volt, Corvette, and GMC Sierra., GM began selling the Chevrolet Volt plug-in hybrid in 2011 (before Tesla began sales of the Model S) then discontinued it in March 2019. In 2013, GM released the Chevrolet Spark EV, ..., May 17, 2020 · Volt; Future Chevrolet Models; ... The AFM/DFM disabler is a plug-in module that deactivates the AFM and DFM systems in V6- and V8-powered GM vehicles. ... I guess that would explain the P25a2 ... , Colors indicate the type of OBD controller. Red = MASTER (ECM) - Stores Codes - Supports M01-0A - Controls MIL Blue = PRIMARY (HPC1, TCM, FPCM, HPC2) - Stores Codes - Supports Modes 01, 04, 09, 0A , Volt. 2019. When receiving the ODB code p1e00 on Your Chevy Volt, You are likely experiencing an issue with the battery. Generally, that sequence indicates a generic electrical system problem. The message is almost always found concurrently with at least one other. Often, in this situation, Volt owners report that the car will not hold a charge ..., Help Us Help You. We have not gotten around to publishing a technical guide specifically for P25A2 – Brake System Control Module “A” Requested MIL Illumination yet. To escalate the priority of this guide in our production queue, we appreciate a $9.99 donation. We will publish a guide within 30 days of payment., My chevy Silverado has almost 40k miles and the engine line just came on. When I read the codes it says it's a U1056 ("lost communication with gateway A") and a secondary P25A2 ("Brake system control module 1 requested Mil illumination")., Re: Chevy Volt Gen 2 charger 24281923 Post by arber333 » Fri Aug 19, 2022 8:58 pm vwbrady wrote: ↑ Fri Aug 19, 2022 8:42 pm the PWMs need to be 12v, otherwise this would all be a lot easier., Technical Bulletin - #18-NA-064 - Malfunction Indicator Lamp (MIL) and/or Propulsion Power Reduced Message Displayed on Driver Information Center (DIC), DTCs P0AEE, P0BD2 or P0BDC Set - (Sep 17, 2021) - For 2017 Chevrolet Bolt EV. This bulletin is found in the Bolt EV Service Manual., 104,000 miles. A D V E R T I S E M E N T S. The contact owns a 2019 Chevrolet Silverado 1500. The contact stated while driving 60 MPH, the vehicle lost motive power with the engine misfiring. The ..., The cost to diagnose the P25A2 2018 Chevrolet Silverado code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour. Search for P25A2 2018 Chevrolet Silverado Questions and ... , That C0507 code I had was what directed me to my FR wheel, each has its own unique code. You can also get codes from Onstar if you have it (or start/restart a trial). Once you know which wheel, you'll need to check your Wheel Speed Sensor first (easy). Pop the wheel off, its the black cable going down near the hub., What's the p25a2 code? 5 comments Best Add a Comment SnazzyInPink • 2016 Premier • 4 yr. ago • Edited 4 yr. ago I need to know more. I literally JUST got this code when I went to move my car. Called Onstar and they gave me this code with the following summary: ECM - Engine System The Engine and Transmission System is not performing as expected.