Application

What you need to know (please read before ordering)

Important: This is a fault specific ECM Repair and Return service for the following issues:
• “Electrical System Service Required” message is displayed on the dash.
• LIN Bus failure between ECM and alternator
• Alternator is not charging
• DTC-U012086 “Lost Communication with Alternator Control Module”
• DTC-U012087 “Lost Communication with Alternator Control Module”

If you have any other codes stored or misfire/communication problems, please see our Program Transfer service here.

This is a Repair service of your existing module. You will need to remove and send your module to us for repair using the shipping labels provided to you.

The order will be processed during our regular business hours (Mon-Fri 8:30 – 5:00 EST). After processing your order, we will email shipping labels and shipping instructions. If you don’t see shipping labels within 1 hour of submitting your order (during business hours) please first check your junk/spam folders. If you still don’t see the labels, please contact us at 1-888-712-2525

Features:

Plug & Play: The software and settings will not be modified, making this module plug and play. No software reload or calibration is required after installation.

Quick Turnaround: Your module will be tested, repaired, tested again, and sent back to you in the same day (unless otherwise noted).

Quality Tested: All our Volvo ECMs undergo rigorous tests on our specialized custom built CAN-bus driven test bed. Functions, DTCs, and software are checked and verified for proper operation.*

Please note that since this is an Engine Control Module some functions can only be tested when installed in the vehicle with a working engine, meaning testing is limited outside of the vehicle. If you’re in doubt of whether or not your ECM is faulty, please consult with a Volvo specialist or contact our tech support by submitting a Technical Question Form here.

Lifetime Limited Warranty: This module comes with our Lifetime Limited Warranty. Please see here for more information.

Reference Numbers

30743217AA | 30729999AA

Common Failure Symptoms

• “Electrical System Service Required” message is displayed on the dash.
• LIN Bus failure between ECM and alternator
• Alternator is not charging
• DTC-U012086 “Lost Communication with Alternator Control Module”
• DTC-U012087 “Lost Communication with Alternator Control Module”

How This Service Works

Step 1: Purchase our repair service online or over the phone.
Step 2: After processing your order, we will email you pre-paid shipping labels.
Step 3: Send us your old defective unit by dropping off the package to any UPS location, or call UPS to schedule a pick up.
Step 4: We will inspect and repair your old module.
Step 5: We will send you back the repaired module the same day (unless otherwise stated).
Step 6: You install the unit back into your vehicle.

For more detailed instructions, please see here.

Technical Resources

How we test your ECM