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.
2011 Volvo C70FACTORY OEM SERVICE PROCEDURE
Electronics - Design And Function - 4 Of 4
- Phone Module (PHM) (2006-2008)
- Power Seat Module, Left (PSL) And Power Seat Module, Right (PSR) (2006-2013)
- Remote Digital Audio Receiver (RDAR) (2007-2008)
- Remote Digital Audio Receiver (RDAR) (2009-2013)
- Software Downloading (2006-2013)
- Standard Central Locking System (2006-2007)
- Diagnostic Functions
- Function
- Standard Lock Function
- Lock Function With Deadlocking
- Private Locking
- Opening The Trunk Lid/Tailgate
- Locking/Opening Fuel Tank Filler Cover
- Light Functions
- Indication Of The Status Of The Doors And Hatches
- Remote Unlocking
- Automatic Locking When Driving
- Automatic Re-Locking After Unlocking
- "Comfort" Functions
- Signals
- System Description/Design
- Notes
- Central Electronic Module (CEM)
- Driver Door Module (DDM) / Passenger Door Module (PDM)
- Driver Information Module (Dim)
- Phone Module (PHM)
- Infotainment Control Module (ICM)
- Switch For Valet Locking
- Switch For Unlocking The Fuel Tank Filler Cover
- Lock Units Side Doors
- Lock Motor Tailgate/Trunk Lid
- Remote Control
- Remote Receiver Module (RRX)
- Lockable Ski Hatch
- Lockable Storage Compartment (Only C70) (Option)
- System Overview
- Notes
- Standard Locking Function
- Deadlock
- Valet Locking Mode
- Unlocking The Trunk Lid/Tailgate
- Unlocking The Fuel Tank Filler Cover
- Light Functions
- Switches For Doors, Tailgate/Trunk Lid And Hood
- Automatic Locking
- Re-Locking
- Text Message For The Lock System
- Customer Settings
- Acknowledgments
- Remote Control
- Panic Function
- Unlocking Using The Key
- Local Locking (C70)
- Remote Unlocking
- Standard Central Locking System (2008-2013)
- Diagnostic Functions
- Function
- Signals
- System Description/Design
- Notes
- Central Electronic Module (CEM)
- Driver Door Module (DDM) / Passenger Door Module (PDM)
- Driver Information Module (Dim)
- Phone Module (PHM)
- Infotainment Control Module (ICM)
- Switch For Valet Locking
- Switch For Unlocking The Fuel Tank Filler Cover
- Lock Units Side Doors
- Lock Motor Tailgate/Trunk Lid
- Remote Control
- Remote Receiver Module (RRX)
- Lockable Ski Hatch (Only C70)
- Lockable Storage Compartment (Only C70) (Option)
- System Overview
- Notes
- Standard Locking Function
- Deadlock
- Valet Locking Mode
- Unlocking The Trunk Lid/Tailgate
- Unlocking The Fuel Tank Filler Cover
- Light Functions
- Switches For Doors, Tailgate/Trunk Lid And Hood
- Automatic Locking
- Re-Locking
- Text Message For The Lock System
- Customer Settings
- Acknowledgments
- Remote Control
- Panic Function
- Unlocking Using The Key
- Local Locking
- Remote Unlocking
- Starter Motor (2006-2013)
- Steering Wheel Module (SWM) (2006-2013)
- Subwoofer Module (Sub) (2006-2007)
- Subwoofer Module (Sub) (2008)
- Subwoofer Module (Sub) (2009-2013)
- Supplemental Restraint System Module (SRS) (2006-2007)
- Design
- Control Module
- Side Impact Sensor
- Frontal Impact Sensor
- Seat Position Sensors
- Occupant Weight Sensor (OWS)
- Adaptive SEATBELT Force Limiter
- Adaptive Steering Column
- Front Airbags
- Side Impact Air Bags
- Seat Belt TENSIONERS
- Door Mounted Inflatable Curtains
- ROPS (Roll Over Protection System)
- SRS Indication
- Passenger Airbag Indication
- Seat Belt Buckle
- Activating Airbags/Seat Belt TENSIONERS
- Deployment Levels For Airbags/Seat Belt TENSIONERS
- Activating The Side Impact Protection System
- Activating The Collision Protection System
- Diagnostic Functions
- Downloading Software And Replacing The Control Module
- Function
- System Overview
- Design
- Supplemental Restraint System Module (SRS) (2008-2013)
- Design
- Control Module
- Side Impact Sensor
- Front Impact Sensor
- Seat Position Sensors
- Occupant Weight Sensor (OWS)
- Adaptive SEATBELT Force Limiter
- Adaptive Steering Column
- Front Airbags
- Side Impact Air Bags
- Belt TENSIONERS
- Door Mounted Inflatable Curtains
- ROPS (Roll Over Protection System)
- SRS Indication
- Passenger Airbag Indication
- SEATBELT Buckle
- Activating Airbags/Seat Belt TENSIONERS
- Deployment Levels For Airbags/Seat Belt TENSIONERS
- Deploying The Side Impact Protection System
- Activating The Collision Protection System
- Diagnostic Functions
- Downloading Software And Replacing The Control Module
- Function
- System Overview
- Design
- Suspension And Steering (2006-2013)
- The Controller Area Network (Can) (2006-2013)
- Tire Pressure Monitoring System (TPMS) (2008-2013)
- Traffic Message Channel Module (TMC) (2006-2007)
- Trailer Module (TRM) (2006-2013)
- Transmission
- Transmission (M66; 2006-2011)
- Design
- Transmission General
- Transmission, Internal Components
- Gear Selector, Internal
- Gear Selector Assembly And Mechanical Transmission Cables
- Back-Up (Reverse) Inhibitor
- Differential
- Synchronization
- Clutch, General
- Hydraulic Clutch Control Mechanism With Concentric Slave Cylinder (CSC)
- Shock Load Limiter
- Self-Adjusting Clutch (Sac)
- Clutch Driven Plate
- Dual Mass Flywheel
- Function
- Overview
- Design
- Transmission Control Module
- Windshield And Headlamp Washing (2006-2013)
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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