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.
2001 Volvo S80 BaseFACTORY OEM SERVICE PROCEDURE
Phone Module (PHM) DTCS
PHONE MODULE (PHM) - DTC INDEX
| DTC | Description |
|---|---|
| PHM-0001 | Power supply. Faulty signal. Permanent fault (USA/CDN) |
| PHM-0004 | Hands-free loudspeaker. Signal too low. Intermittent fault (USA/CDN) |
| PHM-0004 | Hands-free loudspeaker. Signal too low. Permanent fault (USA/CDN) |
| PHM-0006 | Hands-free loudspeaker. Signal too high. Intermittent fault (USA/CDN) |
| PHM-0006 | Hands-free loudspeaker. Signal too high. Permanent fault (USA/CDN) |
| PHM-0008 | Hands-free microphone. Signal missing. Intermittent fault (USA/CDN) |
| PHM-0008 | Hands-free microphone. Signal missing. Permanent fault (USA/CDN) |
| PHM-0009 | Hands-free microphone. Signal too high. Intermittent fault (USA/CDN) |
| PHM-0009 | Hands-free microphone. Signal too high. Permanent fault (USA/CDN) |
| PHM-000A | Hands-free microphone. Signal too low. Intermittent fault (USA/CDN) |
| PHM-000A | Hands-free microphone. Signal too low. Permanent fault (USA/CDN) |
| PHM-000B | Handset cradle. Signal too high. Intermittent fault (USA/CDN) |
| PHM-000B | Handset cradle. Signal too high. Permanent fault (USA/CDN) |
| PHM-000C | Handset cradle. Signal missing. Intermittent fault (USA/CDN) |
| PHM-000C | Handset cradle. Signal missing. Permanent fault (USA/CDN) |
| PHM-000D | Handset microphone. Signal too low. Intermittent fault (USA/CDN) |
| PHM-000D | Handset microphone. Signal too low. Permanent fault (USA/CDN) |
| PHM-000F | Handset loudspeaker. Signal too high. Intermittent fault (USA/CDN) |
| PHM-000F | Handset loudspeaker. Signal too high. Permanent fault (USA/CDN) |
| PHM-0010 | Handset loudspeaker. Signal too low. Intermittent fault (USA/CDN) |
| PHM-0010 | Handset loudspeaker. Signal too low. Permanent fault (USA/CDN) |
| PHM-0012 | Handset supply. Signal too low. Intermittent fault (USA/CDN) |
| PHM-0012 | Handset supply. Signal too low. Permanent fault (USA/CDN) |
| PHM-0013 | Control module. Internal fault. Intermittent fault |
| PHM-0013 | Control module. Internal fault. Permanent fault (USA/CDN) |
| PHM-0014 | Carphone antenna. Faulty signal. Intermittent fault (USA/CDN) |
| PHM-0014 | Carphone antenna. Faulty signal. Permanent fault (USA/CDN) |
| PHM-0015 | Control module. Internal fault. Intermittent fault |
| PHM-0015 | Control module. Internal fault. Permanent fault (USA/CDN) |
| PHM-0020 | Handset microphone. Signal too high. Intermittent fault (USA/CDN) |
| PHM-0020 | Handset microphone. Signal too high. Permanent fault (USA/CDN) |
| PHM-0022 | Handset supply. Signal too high. Intermittent fault (USA/CDN) |
| PHM-0022 | Handset supply. Signal too high. Permanent fault (USA/CDN) |
| PHM-0030 | Backup battery. Low voltage (USA/CDN) |
| PHM-0031 | GPS unit. Internal fault. Intermittent fault |
| PHM-0031 | GPS unit. Internal fault. Permanent fault (USA/CDN) |
| PHM-0032 | GPS antenna. Signal too low. Intermittent fault (USA/CDN) |
| PHM-0032 | GPS antenna. Signal too low. Permanent fault (USA/CDN) |
| PHM-0033 | GPS-antenna. Open circuit. Intermittent fault (USA/CDN) |
| PHM-0033 | GPS-antenna. Open circuit. Permanent fault (USA/CDN) |
| PHM-0034 | GPS antenna. Signal too high. Intermittent fault (USA/CDN) |
| PHM-0034 | GPS antenna. Signal too high. Permanent fault (USA/CDN) |
| PHM-003A | Internal antenna. Open circuit. Intermittent fault |
| PHM-003A | Internal antenna. Open circuit. Permanent fault (USA/CDN) |
| PHM-E001 | Control module communication. Faulty communication |
| PHM-XXXX | Unknown diagnostic trouble code (DTC) for the current control module version |
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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