Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2008 Volvo V70FACTORY OEM SERVICE PROCEDURE
Multimedia Module (Mmm) DTCS
MULTIMEDIA MODULE (MMM) - DTC INDEX
| DTC | Description |
|---|---|
| MMM-B1A8911 | Satellite Antenna. General Electrical Failures. Circuit short to ground |
| MMM-B1A8913 | Satellite Antenna. General Electrical Failures. Circuit open |
| MMM-B1A891B | Satellite Antenna. General Electrical Failures. Circuit resistance above threshold |
| MMM-B1D5514 | Antenna #2. General Electrical Failures. Circuit short to ground or open |
| MMM-U200531 | Vehicle Speed. FM (Frequency Modulated)/PWM (Pulse Width Modulated) Failures. No signal |
| MMM-U220041 | Control Module Configuration Memory Corrupt. System Internal Failures. General checksum failure |
| MMM-U220044 | Control Module Configuration Memory Corrupt. System Internal Failures. Data memory failure |
| MMM-U300049 | Control Module. System Internal Failures. Internal electronic failure |
| MMM-U300055 | Control Module. System Programming Failures. Not configured |
| MMM-U300087 | Control Module. Bus Signal/Message Failures. No signal |
| MMM-U300098 | Control Module. Component Failures. Component or system over temperature |
| MMM-U300316 | Battery Voltage. General Electrical Failures. Circuit voltage below threshold |
| MMM-U300317 | Battery Voltage. General Electrical Failures. Circuit voltage above threshold |
| MMM-U300362 | Battery voltage. Algorithm Based Failures. Signal compare failure |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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