{{year}} {{brand}} {{engine}} {{collection-synonym}} failure and symptoms. Much like other electronic components, {{brand}} {{collection-synonym}} failures are widespread and can be due to several reasons. Finding out what caused your {{year}} {{brand}} {{engine}} {{collection-synonym}} failure can help determine whether you need an {{collection-synonym}} repair or a replacement {{collection-synonym}}. The ECU Pro offers {{year}} {{brand}} {{engine}} {{collection-synonym}} replacements / repairs that are more affordable than OEM repairs. Below are some common {{year}} {{brand}} {{engine}} {{collection-synonym}} failure symptoms: Injector driver faulty Cylinder Misfires C9304 BSD databus communications fault Internal Valvetronic failure or Valvetronic under-voltage detected No ignition spark on one cylinder 133902 DME internal fault 134B02 Valvetronic servomotor supply voltage short circuit to earth DME Master relay Activation Intelligent battery sensor (IBS) related codes 12474 or 30BA injection valve failure 12475 or 30BB injector 4,5,6 failure Water damaged DME Corrupted DME coding Blown DME due to jump-started vehicle DME processor failure If you experience any of these symptoms you can send us your {{year}} {{brand}} {{engine}} {{collection-synonym}} for a repair or replacement service. Once we receive your {{year}} {{brand}} {{engine}} {{collection-synonym}} our professional team will conduct a comprehensive test and diagnostic check on the {{collection-synonym}}. Our team of specialized technicians can then recommend a repair or replacement {{collection-synonym}}, depending on the results. If no fault is discovered and your {{year}} {{brand}} {{engine}} {{collection-synonym}} is in working order, your original {{collection-synonym}} unit will be returned. All our repair and replacement services are Plug and Play solutions. Once we have completed the repair, the vehicle will be 100% back to normal and no other programming is required. All our work comes with a 6-month warranty and free 30-day technical support! {{collection-synonym}} repairs / clone highlights: 100% plug and play - There is no additional coding required. 3-6 day turnaround - Most of our repairs/clones are completed within 5 days. Time is impacted by the availability of parts and the extent of the damage to the unit. Some units can take between 5-10 days. 6-month warranty - All our {{collection-synonym}} repairs / clone come with a 6-month warranty.

<h2>{{year}} {{brand}} {{engine}} {{collection-synonym}} failure and symptoms.</h2>
Much like other electronic components, {{brand}} {{collection-synonym}} failures are widespread and can be due to several reasons. 
Finding out what caused your {{year}} {{brand}} {{engine}} {{collection-synonym}} failure can help determine whether you need an {{collection-synonym}} repair or a replacement {{collection-synonym}}. The ECU Pro offers {{year}} {{brand}} {{engine}} {{collection-synonym}} replacements / repairs that are more affordable than OEM repairs. 
Below are some common {{year}} {{brand}} {{engine}} {{collection-synonym}} failure symptoms: 
<ul data-mce-fragment="1">
<li data-mce-fragment="1" style="font-weight: 400;" data-mce-style="font-weight: 400;">Injector driver faulty</li>
<li data-mce-fragment="1" style="font-weight: 400;" data-mce-style="font-weight: 400;">Cylinder Misfires</li>
<li data-mce-fragment="1" style="font-weight: 400;" data-mce-style="font-weight: 400;">C9304 BSD databus communications fault</li>
<li data-mce-fragment="1" style="font-weight: 400;" data-mce-style="font-weight: 400;">Internal Valvetronic failure or Valvetronic under-voltage detected</li>
<li data-mce-fragment="1" style="font-weight: 400;" data-mce-style="font-weight: 400;">No ignition spark on one cylinder</li>
<li data-mce-fragment="1" style="font-weight: 400;" data-mce-style="font-weight: 400;">133902 DME internal fault</li>
<li data-mce-fragment="1" style="font-weight: 400;" data-mce-style="font-weight: 400;">134B02 Valvetronic servomotor supply voltage short circuit to earth</li>
<li data-mce-fragment="1" style="font-weight: 400;" data-mce-style="font-weight: 400;">DME Master relay Activation</li>
<li data-mce-fragment="1" style="font-weight: 400;" data-mce-style="font-weight: 400;">Intelligent battery sensor (IBS) related codes</li>
<li data-mce-fragment="1" style="font-weight: 400;" data-mce-style="font-weight: 400;">12474 or 30BA injection valve failure</li>
<li data-mce-fragment="1" style="font-weight: 400;" data-mce-style="font-weight: 400;">12475 or 30BB injector 4,5,6 failure</li>
<li data-mce-fragment="1" style="font-weight: 400;" data-mce-style="font-weight: 400;">Water damaged DME</li>
<li data-mce-fragment="1" style="font-weight: 400;" data-mce-style="font-weight: 400;">Corrupted DME coding</li>
<li data-mce-fragment="1" style="font-weight: 400;" data-mce-style="font-weight: 400;">Blown DME due to jump-started vehicle</li>
<li data-mce-fragment="1" style="font-weight: 400;" data-mce-style="font-weight: 400;">DME processor failure</li>
</ul>
If you experience any of these symptoms you can send us your {{year}} {{brand}} {{engine}} {{collection-synonym}} for a repair or replacement service.  Once we receive your {{year}} {{brand}} {{engine}} {{collection-synonym}} our professional team will conduct a comprehensive test and diagnostic check on the {{collection-synonym}}.  Our team of specialized technicians can then recommend a repair or replacement {{collection-synonym}}, depending on the results. 
If no fault is discovered and your {{year}} {{brand}} {{engine}} {{collection-synonym}} is in working order, your original {{collection-synonym}} unit will be returned. All our repair and replacement services are Plug and Play solutions. Once we have completed the repair, the vehicle will be 100% back to normal and no other programming is required.
All our work comes with a 6-month warranty and free 30-day technical support!
<h2 data-mce-fragment="1">{{collection-synonym}} repairs / clone highlights: </h2>
<ul>
<li>100% plug and play - There is no additional coding required.</li>
<li>3-6 day turnaround - Most of our repairs/clones are completed within 5 days. Time is impacted by the availability of parts and the extent of the damage to the unit. Some units can take between 5-10 days.   </li>
<li>
6-month warranty - All our {{collection-synonym}} repairs / clone come with a 6-month warranty.</li>
</ul>

DME / EWS Related codes Engine temp gauge in red No ECU function or communication with the ECU DME RAM self-test checksum errors Electronic throttle controller errors

<ul>
<li>DME / EWS Related codes</li>
<li>Engine temp gauge in red 
</li>
<li>No ECU function or communication with the ECU</li>
<li>DME RAM self-test checksum errors 
</li>
<li>Electronic throttle controller errors</li>
</ul>

{{year}} {{brand}} {{engine}} {{ecu}} {{collection-synonym}} mail in repair service. Get a professional {{ecu}} {{collection-synonym}} replacement at a fraction of the OEM price. Fast and easy {{collection-synonym}} repairs.

MS43 EWS

Testing

Repair

Replace

Engine temp gauge in red No ECU function or communication with the ECU Water damage DME RAM self-test: checksum errors

<ul>
<li>Engine temp gauge in red 
</li>
<li>No ECU function or communication with the ECU</li>
<li>Water damage</li>
<li>DME RAM self-test: checksum errors</li>
</ul>

MS45 CAS

All keys lost replacements Replacement key Vehicle not accepting the key

<ul data-mce-fragment="1">
<li data-mce-fragment="1">All keys lost replacements</li>
<li data-mce-fragment="1">Replacement key</li>
<li data-mce-fragment="1">Vehicle not accepting the key</li>
</ul>

The ECU Pro offers professional {{year}} {{brand}} {{engine}} key replacement service. It can be used for all keys lost situations or to make one replacement key. Our {{year}} {{brand}} {{engine}} key replacement services are mail-in repairs and 100% plug-and-play.

Diamond Shape

Replacement

All Keys Lost

{{year}} {{brand}} {{engine}} {{product}} failure, repairs, and symptoms. {{product}} module failure is a common problem in {{year}} {{brand}} {{engine}} vehicles. The {{product}} module enables your vehicle to start. If faulty, the car typically won’t crank and no start signal will be generated. The {{product}} module is an important module in {{year}} {{brand}} {{engine}} vehicles for two reasons. Firstly, it functions as an anti-theft system in your vehicle. For the vehicle to start the {{product}}, key, and the engine control unit (ECU or DME) need to be in sync. Secondly, the {{product}} stores the vehicle order (VO). The VO is essentially the coding that knows and controls all the car’s features, similar to the DNA of a human. It has information about the type of transmission, extra features, VIN, engine type, etc. Typical signs of a faulty {{product}} in {{year}} {{brand}} {{engine}} vehicles include: No vehicle crank Vehicle not accepting the key Vehicle starts and stalls Yellow ELV steering lock on the dash Once the {{product}} module fails, it will either require a repair or replacement unit. Repairs can typically be performed if the software on the unit is corrupt, which is often caused by failed software updates or when adding additional keys with incorrect tools. If there is physical hardware damage to the unit, potentially from water or another force or decay, it will likely require a replacement {{product}} unit. Regardless of the type of failure, the ECU Pro can offer you a repair service at a fraction of the OEM repair price. It is recommended that you first send your {{product}} for testing services. Once we have determined what is wrong with the unit, we will recommend either a repair or replacement {{year}} {{brand}} {{engine}} {{product}}. To get the process started, simply send us your {{year}} {{brand}} {{engine}} {{product}}, KEY, and DME / ECU. Upon checkout, detailed removal instructions will be provided for your vehicle. {{year}} {{brand}} {{engine}} {{product}} repairs/clone highlights: 100% plug-and-play - There is no additional coding required. 1-3 day turnaround - Most of our repairs/clones are completed within 3 days. Time is impacted by the availability of parts and the extent of the damage to the unit. Some units can take between 5-10 days. 6-month warranty - All our ECU repairs/replacements come with a 6-month warranty.

<h2>
{{year}} {{brand}} {{engine}} {{product}} failure, repairs, and symptoms.</h2>
{{product}} module failure is a common problem in {{year}} {{brand}} {{engine}} vehicles. The {{product}} module enables your vehicle to start. If faulty, the car typically won’t crank and no start signal will be generated.
The {{product}} module is an important module in {{year}} {{brand}} {{engine}} vehicles for two reasons. Firstly, it functions as an anti-theft system in your vehicle. For the vehicle to start the {{product}}, key, and the engine control unit (ECU or DME) need to be in sync.
Secondly, the {{product}} stores the vehicle order (VO). The VO is essentially the coding that knows and controls all the car’s features, similar to the DNA of a human. It has information about the type of transmission, extra features, VIN, engine type, etc.
Typical signs of a faulty {{product}} in {{year}} {{brand}} {{engine}} vehicles include:
<ul data-mce-fragment="1">
<li data-mce-fragment="1">No vehicle crank</li>
<li data-mce-fragment="1">Vehicle not accepting the key</li>
<li data-mce-fragment="1">Vehicle starts and stalls</li>
<li data-mce-fragment="1">Yellow ELV steering lock on the dash</li>
</ul>
Once the {{product}} module fails, it will either require a repair or replacement unit. Repairs can typically be performed if the software on the unit is corrupt, which is often caused by failed software updates or when adding additional keys with incorrect tools. If there is physical hardware damage to the unit, potentially from water or another force or decay, it will likely require a replacement {{product}} unit.
Regardless of the type of failure, the ECU Pro can offer you a repair service at a fraction of the OEM repair price. It is recommended that you first send your {{product}} for testing services. Once we have determined what is wrong with the unit, we will recommend either a repair or replacement {{year}} {{brand}} {{engine}} {{product}}. 
To get the process started, simply send us your {{year}} {{brand}} {{engine}} {{product}}, KEY, and DME / ECU. Upon checkout, detailed removal instructions will be provided for your vehicle. 
<h2>
{{year}} {{brand}} {{engine}} {{product}} repairs/clone highlights: 
</h2>
<ul data-mce-fragment="1">
<li data-mce-fragment="1">
100% plug-and-play - There is no additional coding required.</li>
<li data-mce-fragment="1">
1-3 day turnaround - Most of our repairs/clones are completed within 3 days. Time is impacted by the availability of parts and the extent of the damage to the unit. Some units can take between 5-10 days.   </li>
<li data-mce-fragment="1">
6-month warranty - All our ECU repairs/replacements come with a 6-month warranty.</li>
</ul>

Security System

No vehicle crank Vehicle not accepting the key Vehicle starts and stalls EWS Related codes

<ul data-mce-fragment="1">
<li data-mce-fragment="1">No vehicle crank</li>
<li data-mce-fragment="1">Vehicle not accepting the key</li>
<li data-mce-fragment="1">Vehicle starts and stalls</li>
<li data-mce-fragment="1">EWS Related codes</li>
</ul>

The ECU Pro offers professional {{year}} {{brand}} {{engine}} Electronic Immobilizer (EWS) testing, repairs, and replacement services. All our {{year}} {{brand}} {{engine}} EWS repair services are mail-in repairs and 100% plug-and-play. Once installed in your vehicle, no other coding will be required.

No vehicle crank Vehicle not accepting the key Vehicle starts and stalls Yellow ELV steering lock on the dash

<ul data-mce-fragment="1">
<li data-mce-fragment="1">No vehicle crank</li>
<li data-mce-fragment="1">Vehicle not accepting the key</li>
<li data-mce-fragment="1">Vehicle starts and stalls</li>
<li data-mce-fragment="1">Yellow ELV steering lock on the dash</li>
</ul>

The ECU Pro offers professional {{year}} {{brand}} {{engine}} car access system (CAS) testing, repairs, and replacement services. All our {{year}} {{brand}} {{engine}} CAS repair services are mail-in repairs and 100% plug-and-play.  Once installed in your vehicle, no other coding will be required.

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Vehicles
→ BMW
→ 5-Series
→ 525i
→ 2003
Vehicle repairs for your 2003 BMW 525i

ECU Service for 2003 BMW 525i

ECU Service for 2003 BMW 525i

Key Service for 2003 BMW 525i

EWS Service for 2003 BMW 525i

CAS Service for 2003 BMW 525i

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Vehicles→ BMW→ 5-Series→ 525i→ 2003Vehicle repairs for your 2003 BMW 525i

ECU Service for 2003 BMW 525i

ECU Service for 2003 BMW 525i

Key Service for 2003 BMW 525i

EWS Service for 2003 BMW 525i

CAS Service for 2003 BMW 525i

What our customers have to say

Vehicles
→ BMW
→ 5-Series
→ 525i
→ 2003
Vehicle repairs for your 2003 BMW 525i