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.
Audio Module (AUM), Phone Module (PHM), Road Traffic Information (RTI) Diagnostic Trouble Codes (XC)
2003 Volvo XC70SECTION Audio Module (AUM), Phone Module (PHM), Road Traffic Information (RTI) Diagnostic Trouble Codes (XC)
- AUM-36E1: Antenna, Satellite Radio. Signal Too Low (2005-2007)
- AUM-36EF: Antenna, Satellite Radio. Signal Missing (2005-2007)
- AUM-4001: Antenna Amplifier 1. Signal Too Low. Intermittent Fault (2001-2007)
- AUM-4001: Antenna Amplifier 1. Signal Too Low. Permanent Fault (2001-2007)
- AUM-4002: Amplifier, Main Antenna. Signal Too High. Intermittent Fault (2001-2007)
- AUM-4002: Amplifier, Main Antenna. Signal Too High. Permanent Fault (2001-2007)
- AUM-40FF: Amplifier, Main Antenna. Signal Missing. Intermittent Fault (2001-2007)
- AUM-40FF: Amplifier, Main Antenna. Signal Missing. Permanent Fault (2001-2007)
- AUM-41FF: Amplifier, Sub-Antenna. Signal Missing. Intermittent Fault (2001-2007)
- AUM-41FF: Amplifier, Sub-Antenna. Signal Missing. Permanent Fault (2001-2007)
- AUM-42FF: Single Cd Player. Not Connected Or Communication Problems. Intermittent Fault (2001-2007)
- AUM-42FF: Single Cd Player. Not Connected Or Communication Problems. Permanent Fault (2001-2007)
- AUM-43FF: Minidisc Player. Not Connected Or Communication Problems. Intermittent Fault (2001-2007)
- AUM-43FF: Minidisc Player. Not Connected Or Communication Problems. Permanent Fault (2001-2007)
- AUM-44FF: 4 Disc Cd Changer. Not Connected Or Communication Problems. Intermittent Fault (2001-2007)
- AUM-44FF: 4 Disc Cd Changer. Not Connected Or Communication Problems. Permanent Fault (2001-2007)
- AUM-45FF: Cassette Deck. Not Connected Or Communication Problems. Intermittent Fault (2001-2007)
- AUM-45FF: Cassette Deck. Not Connected Or Communication Problems. Permanent Fault (2001-2007)
- AUM-46FE: 10 Disc Cd Changer. Faulty Installation. Intermittent Fault (2001-2007)
- AUM-46FE: 10 Disc Cd Changer. Faulty Installation. Permanent Fault (2001-2007)
- AUM-46FF: 10 Disc Cd Changer. Not Connected Or Communication Problems. Intermittent Fault (2001-2007)
- AUM-46FF: 10 Disc Cd Changer. Not Connected Or Communication Problems. Permanent Fault (2001-2007)
- AUM-47FE: Amplifier. Faulty Installation. Intermittent Fault (2001-2007)
- AUM-47FE: Amplifier. Faulty Installation. Permanent Fault (2001-2007)
- AUM-47FF: Amplifier. Not Connected Or Communication Problems. Intermittent Fault (2001-2007)
- AUM-47FF: Amplifier. Not Connected Or Communication Problems. Permanent Fault (2001-2007)
- AUM-48FD: Control Module. Faulty Frequency Setting. Intermittent Fault (2001-2007)
- AUM-48FD: Control Module. Faulty Frequency Setting. Permanent Fault (2001-2007)
- AUM-49FD: Control Module. Faulty Installation. Intermittent Fault (2001-2007)
- AUM-49FD: Control Module. Faulty Installation. Permanent Fault (2001-2007)
- AUM-4BFF: Control Module. Internal Program Fault. Intermittent Fault (2001-2007)
- AUM-4BFF: Control Module. Internal Program Fault. Permanent Fault (2001-2007)
- AUM-E001: Control Module Communication. Faulty Communication (2001-2004)
- AUM-E001: Control Module Communication. Faulty Communication (2005-2007)
- AUM-E003: Configuration Fault. Faulty Configuration (2001-2004)
- AUM-E003: Configuration Fault. Faulty Configuration (2005-2007)
- AUM-XXXX: Unknown Diagnostic Trouble Code (DTC) For The Current Control Module Version (2001-2007)
- PHM-0001: Power Supply. Faulty Signal. Intermittent Fault (2001-2004)
- PHM-0001: Power Supply. Faulty Signal. Permanent Fault (USA/CDN) (2001-2004)
- PHM-0004: Hands-Free Loudspeaker. Signal Too Low. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-0004: Hands-Free Loudspeaker. Signal Too Low. Permanent Fault (USA/CDN) (2001-2004)
- PHM-0006: Hands-Free Loudspeaker. Signal Too High. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-0006: Hands-Free Loudspeaker. Signal Too High. Permanent Fault (USA/CDN) (2001-2004)
- PHM-0008: Hands-Free Microphone. Signal Missing. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-0008: Hands-Free Microphone. Signal Missing. Permanent Fault (USA/CDN) (2001-2004)
- PHM-0009: Hands-Free Microphone. Signal Too High. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-0009: Hands-Free Microphone. Signal Too High. Permanent Fault (USA/CDN) (2001-2004)
- PHM-000A: Hands-Free Microphone. Signal Too Low. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-000A: Hands-Free Microphone. Signal Too Low. Permanent Fault (USA/CDN) (2001-2004)
- PHM-000B: Handset Cradle. Signal Too High. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-000B: Handset Cradle. Signal Too High. Permanent Fault (USA/CDN) (2001-2004)
- PHM-000C: Handset Cradle. Signal Missing. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-000C: Handset Cradle. Signal Missing. Permanent Fault (USA/CDN) (2001-2004)
- PHM-000D: Handset Microphone. Signal Too Low. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-000D: Handset Microphone. Signal Too Low. Permanent Fault (USA/CDN) (2001-2004)
- PHM-000F: Handset Loudspeaker. Signal Too High. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-000F: Handset Loudspeaker. Signal Too High. Permanent Fault (USA/CDN) (2001-2004)
- PHM-0010: Handset Loudspeaker. Signal Too Low. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-0010: Handset Loudspeaker. Signal Too Low. Permanent Fault (USA/CDN) (2001-2004)
- PHM-0012: Handset Supply. Signal Too Low. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-0012: Handset Supply. Signal Too Low. Permanent Fault (USA/CDN) (2001-2004)
- PHM-0013: Control Module. Internal Fault. Intermittent Fault (2001-2004)
- PHM-0013: Control Module. Internal Fault. Permanent Fault (USA/CDN) (2001-2004)
- PHM-0014: CARPHONE Antenna. Faulty Signal. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-0014: CARPHONE Antenna. Faulty Signal. Permanent Fault (USA/CDN) (2001-2004)
- PHM-0015: Control Module. Internal Fault. Intermittent Fault (2001-2004)
- PHM-0015: Control Module. Internal Fault. Permanent Fault (USA/CDN) (2001-2004)
- PHM-0020: Handset Microphone. Signal Too High. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-0020: Handset Microphone. Signal Too High. Permanent Fault (USA/CDN) (2001-2004)
- PHM-0022: Handset Supply. Signal Too High. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-0022: Handset Supply. Signal Too High. Permanent Fault (USA/CDN) (2001-2004)
- PHM-0030: Backup Battery. Low Voltage (USA/CDN) (2001-2004)
- PHM-0031: GPS Unit. Internal Fault. Intermittent Fault (2001-2004)
- PHM-0031: GPS Unit. Internal Fault. Permanent Fault (USA/CDN) (2001-2004)
- PHM-0032: GPS Antenna. Signal Too Low. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-0032: GPS Antenna. Signal Too Low. Permanent Fault (USA/CDN) (2001-2004)
- PHM-0033: GPS-Antenna. Open Circuit. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-0033: GPS-Antenna. Open Circuit. Permanent Fault (USA/CDN) (2001-2004)
- PHM-0034: GPS Antenna. Signal Too High. Intermittent Fault (USA/CDN) (2001-2004)
- PHM-0034: GPS Antenna. Signal Too High. Permanent Fault (USA/CDN) (2001-2004)
- PHM-003A: Internal Antenna. Open Circuit. Intermittent Fault (2001-2004)
- PHM-003A: Internal Antenna. Open Circuit. Permanent Fault (USA/CDN) (2001-2004)
- PHM-E001: Control Module Communication. Faulty Communication (2001-2004)
- PHM-E003: Configuration Fault. Faulty Configuration (2001-2004)
- PHM-XXXX: Unknown Diagnostic Trouble Code (DTC) For The Current Control Module Version (2001-2004)
- RTI-1000: Control Module. Internal Fault. Intermittent Fault (2001-2007)
- RTI-1000: Control Module. Internal Fault. Permanent Fault (2001)
- RTI-1000: Control Module. Internal Fault. Permanent Fault (2002-2007)
- RTI-2000: Cd-ROM Player Reading Off. Internal Fault. Intermittent Fault (2001)
- RTI-2000: Cd-ROM Player Reading Off. Internal Fault. Permanent Fault (2001)
- RTI-2000: DVD Player. Internal Fault (2002-2007)
- RTI-2100: Cd-ROM Player Missing. Signal Missing. Intermittent Fault (2001)
- RTI-2100: Cd-ROM Player Missing. Signal Missing. Permanent Fault (2001)
- RTI-2100: DVD Player. Signal Missing (2002-2007)
- RTI-3000: GPS Receiver Missing. Internal Fault. Permanent Fault (2001)
- RTI-3000: GPS Receiver. Internal Fault. Intermittent Fault (2001-2007)
- RTI-3000: GPS Receiver. Internal Fault. Permanent Fault (2002-2007)
- RTI-3100: GPS Antenna. Signal Missing (2002-2007)
- RTI-4000: TMC Receiver Missing. Internal Fault. Intermittent Fault (2001-2007)
- RTI-4000: TMC Receiver Missing. Internal Fault. Permanent Fault (2001)
- RTI-4000: TMC Receiver. Internal Fault. Permanent Fault (2002-2007)
- RTI-5000: Fm Multiplex Receiver Missing. Internal Fault. Permanent Fault (2001)
- RTI-5000: Fm Multiplex Receiver. Internal Fault. Intermittent Fault (2001-2007)
- RTI-5000: Fm Multiplex Receiver. Internal Fault. Permanent Fault (2002-2007)
- RTI-E001: Control Module Communication. Faulty Communication (2001-2004)
- RTI-E001: Control Module Communication. Faulty Communication (2005-2007)
- RTI-E003: Configuration Fault. Faulty Configuration (2005-2007)
- RTI-E003: Configuration Fault. Faulty Configuration (2001-2004)
- RTI-XXXX: Unknown Diagnostic Trouble Code (DTC) For The Current Control Module Version (2001-2007)
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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.