P0619 OBD-II Trouble Code: Alternative Fuel Control Module RAM/ROM Error

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0619 code

P0619 is a diagnostic trouble code (DTC) for "Alternative Fuel Control Module RAM/ROM Error". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$20.00
Toyota$20.00
BMW$20.00
SCHEDULE P0619 DIAGNOSTIC Get a fair and transparent estimate upfront

P0619 code definition

A P0619 trouble code indicates a problem in the alternative fuel control module random access memory/read-only memory. In addition to the Powertrain Control Module (PCM), this type of issue can be detected by the following modules: the antilock brake control module, the anti-theft module, the body control module, the climate control module, the cruise control module, the fuel injection control module, the instrument panel control module, proximity alert module, the traction control module, and the turbo control module. One similar code to a P0619 code is a P0618 trouble code.

What the P0619 code means

The storage of a P0619 trouble code indicates that the alternative fuel control module random access memory/read only memory has suffered an error. While most vehicles also illuminate a Check Engine light upon storing the P0619 trouble code, some models require multiple drive cycles, up to eight, before the lamp illuminates.

What causes the P0619 code?

The most common cause of a P0619 trouble code is a faulty alternative fuel control module. Some other causes can include faulty wiring or connectors within the Control Area Network (CAN) Bus harness, a loose ground strap or broken wire within one of the control modules, and a faulty CAN Bus.

What are the symptoms of the P0619 code?

Symptoms of a P0619 trouble code include engine stalling, rough idling, poor acceleration, problems shifting, and a reduction in the vehicle's fuel efficiency.

How does a mechanic diagnose the P0619 code?

To successfully diagnose a P0619 trouble code, the mechanic needs an OBD-II scanner, a digital volt/ohmmeter, a CAN Bus system wiring diagram, and a specialized CAN scanner. The mechanic also needs to complete the following steps:

  • Begin by visually inspecting all wiring, connectors, and other components, looking for any fault, corrosion, or other damage.
  • Hook up the scanner to the diagnostic connector and download any stored codes and freeze frame data. This allows the mechanic to clear the codes in the order that they were stored.
  • Using the specialized scanner, test the pins of the CAN Bus. Disconnect any related control modules before doing so to prevent damage and memory loss. Also, install a memory saving device to help with memory loss prevention.
  • Use the digital volt/ohmmeter to check the reference voltage and ground signal of the system circuitry, connectors, and fuses. Test the control module ground circuits for continuity with the battery ground.
  • In addition, the mechanic can use a CAN Bus system wiring diagram to check the continuity between the related control modules with the digital volt/ohmmeter.
  • Clear the code and test the system to see if the trouble code returns.

Common mistakes when diagnosing the P0619 code

When diagnosing trouble codes on the PCM, mechanics need to clear the codes in the order they were stored. A common mistake with a P0619 trouble code occurs when this procedure is not followed. Most often a mechanic will treat the symptoms that occur as a reaction to the communication failure and not the original source of the code, a failure on the part of the Alternative Fuel Control Module RAM/ROM. This subsequently leads to the problem not being fixed and the code returning.

How serious is the P0619 code?

Left unfixed, a P0619 trouble code can lead to problems with the engine in the form of misfires, acceleration, and fuel mileage. In addition, the problems associated with a P0619 trouble code can lead to harsh shifting with the vehicle in question.

What repairs can fix the P0619 code?

When repairing a P0619 trouble code, the mechanic should perform the following:

  • Replace any damaged or faulty wiring, connectors, or components. This includes circuitry associated with the various related control modules. When replacing wiring within the CAN Bus harness, it is easier to replace the whole harness as opposed to individual wiring.
  • Replace any faulty control modules, especially the alternative fuel control module, as this is often the cause of the storage of a P0619 trouble code.

Need help with a P0619 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

trouble codes
Check Engine Light
P0619

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P0619 code.

SCHEDULE P0619 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.8/5

Number of Reviews

5,170

Rating Summary
4,765
197
50
27
131
4,765
197
50
27
131

Fred

16 years of experience
364 reviews
Fred
16 years of experience
Mercedes-Benz E500 - Check Engine Light is on - Conroe, Texas
Fred was very friendly and thorough to get to the root of the issue. Even when he could not find a fault to why my engine light was on, he went above and beyond to make absolutely sure that the concern was minimized. Turns out, all that needed to be done was a reset but his diagnostic to address my issues was very intricate and appreciated.

David

17 years of experience
37 reviews
David
17 years of experience
Chevrolet Cruze - Check Engine Light is on - Aurora, Colorado
David was on time, professionalisms & honest! I would definitely request him again and pass along to friends/family.

John

18 years of experience
18 reviews
John
18 years of experience
Dodge Ram 1500 - Check Engine Light is on - Memphis, Tennessee
Demonstrated good integrity. Advised me when work I thought needed done was unnecessary and was helpful in identifying issues that needed to be addressed

Robert

21 years of experience
17 reviews
Robert
21 years of experience
Chrysler 200 - Check Engine Light is on - Fort Worth, Texas
Robert did a good job working on my car and letting me know what's needed to keep my car driving smoothly.


More related articles

P0181 OBD-II Trouble Code: Fuel Temperature Sensor 'A' Circuit Range/Performance
P0181 P0181 code definition Fuel Temperature Sensor ‘A’ Circuit Range/Performance What the P0181 code means P0181 is a generic OBD-II code that is triggered when the fuel temperature sensor ‘A’ circuit goes out of specifications during self-testing. This indicates that...
P0019 OBD-II Trouble Codes: Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B)
P0019 P0019 code definition Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B) What the P0019 code means P0019 is the OBD-II generic code indicating that the crankshaft and Variable Valve Timing (VVT) position sensor B for bank 2...
B1873 OBD-II Trouble Code: Turn Signal / Hazard Power Feed Circuit Short to Ground
B1873 means there is an issue with the circuit involving the turn signal and hazard light power feed, likely due to a damaged electrical component.

Related questions

engine codes related

Hey there. If the codes are cleared with a scanner, check to see if they return. Maybe the system was serviced or the battery ground is loose and causing the circuit to break which could cause a lack of communication...

P1743

This code is for a transmission overdrive solenoid problem. The overdrive solenoid would need to be tested to see if it has the proper resistance of 10 to 20 ohms. If it is okay then the harness will need to...

SUV will not accelerate sporadically and has no power

Hi there: To be completely honest, there could be multiple issues with your 2008 Mercedes-Benz that are causing the symptoms you're describing, ranging from something simple like a crankshaft position sensor to the throttle position sensor or complex issues with...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com