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 S80 BaseFACTORY OEM SERVICE PROCEDURE
Suspension Module (Sum) DTCS
SUSPENSION MODULE (SUM) - DTC INDEX
| DTC | Volvo Code | Description |
|---|---|---|
| C110C | SUM-C110C11 | Left Front Damper Solenoid. General Electrical Failures. Circuit short to ground |
| C110C | SUM-C110C12 | Left Front Damper Solenoid. General Electrical Failures. Circuit short to battery |
| C110C | SUM-C110C13 | Left Front Damper Solenoid. General Electrical Failures. Bus off |
| C110C | SUM-C110C18 | Left Front Damper Solenoid. General Electrical Failures. Circuit current below threshold |
| C110C | SUM-C110C19 | Left Front Damper Solenoid. General Electrical Failures. Circuit current above threshold |
| C110C | SUM-C110C1D | Left Front Damper Solenoid. General Electrical Failures. Circuit current out of range |
| C110C | SUM-C110C4B | Left Front Damper Solenoid. System Internal Failures. Over temperature |
| C110D | SUM-C110D13 | Right Front Damper Solenoid. General Electrical Failures. Bus off |
| C110D | SUM-C110D18 | Right Front Damper Solenoid. General Electrical Failures. Circuit current below threshold |
| C110E | SUM-C110E13 | Left Rear Damper Solenoid. General Electrical Failures. Bus off |
| C110E | SUM-C110E18 | Left Rear Damper Solenoid. General Electrical Failures. Circuit current below threshold |
| C110F | SUM-C110F13 | Right Rear Damper Solenoid. General Electrical Failures. Bus off |
| C110F | SUM-C110F18 | Right Rear Damper Solenoid. General Electrical Failures. Circuit current below threshold |
| C111C | SUM-C111C11 | Left Front Body Acceleration Sensor. General Electrical Failures. Circuit short to ground |
| C111C | SUM-C111C12 | Left Front Body Acceleration Sensor. General Electrical Failures. Circuit short to battery |
| C111C | SUM-C111C13 | Left Front Body Acceleration Sensor. General Electrical Failures. Bus off |
| C111C | SUM-C111C29 | Left Front Body Acceleration Sensor. General Electrical Failures. Signal plausibility failure |
| C112B | SUM-C112B94 | Isolation Switch. Component Failures. Unexpected operation |
| C112C | SUM-C112C11 | Mode Indicator 1. General Electrical Failures. Circuit short to ground |
| C112C | SUM-C112C12 | Mode Indicator 1. General Electrical Failures. Circuit short to battery |
| C112C | SUM-C112C13 | Mode Indicator 1. General Electrical Failures. Bus off |
| C1A03 | SUM-C1A0311 | Left Front Height Sensor. General Electrical Failures. Circuit short to ground |
| C1A03 | SUM-C1A0312 | Left Front Height Sensor. General Electrical Failures. Circuit short to battery |
| C1A03 | SUM-C1A0313 | Left Front Height Sensor. General Electrical Failures. Bus off |
| C1A03 | SUM-C1A0329 | Left Front Height Sensor. General Electrical Failures. Signal plausibility failure |
| C1A04 | SUM-C1A0429 | Right Front Height Sensor. General Signal Failures. Signal plausibility failure |
| C1A05 | SUM-C1A0529 | Left Rear Height Sensor. General Electrical Failures. Signal plausibility failure |
| C1A06 | SUM-C1A0629 | Right Rear Height Sensor. General Signal Failures. Signal plausibility failure |
| U0001 | SUM-U000100 | High Speed CAN Communication Bus. General Failure Information. No sub type information |
| U0100 | SUM-U010000 | Lost Communication With Engine control module. General Failure Information. No sub type information |
| U0121 | SUM-U012100 | Lost Communication With Brake Control Module. General Failure Information. No sub type information |
| U0126 | SUM-U012600 | Lost Communication With Steering Angle Sensor Module. General Failure Information. No sub type information |
| U0140 | SUM-U014000 | Lost Communication With Central electronic module. General Failure Information. No sub type information |
| U0300 | SUM-U030000 | Internal Control Module Software Incompatibility. General Failure Information. No sub type information |
| U0401 | SUM-U040168 | Invalid Data Received From Engine control module. Algorithm Based Failures. Event information |
| U0418 | SUM-U041868 | Invalid Data Received From Brake Control Module. Algorithm Based Failures. Event information |
| U0422 | SUM-U042268 | Invalid Data Received From Central electronic module. Algorithm Based Failures. Event information |
| U0428 | SUM-U042868 | Invalid Data Received From Steering Angle Sensor Module. Algorithm Based Failures. Event information |
| U200A | SUM-U200A94 | Control Module Internal Power A. Component Failures. Unexpected operation |
| U200B | SUM-U200B94 | Control Module Internal Power B. Component Failures. Unexpected operation |
| U200C | SUM-U200C94 | Control Module Internal Power C. Component Failures. Unexpected operation |
| U200D | SUM-U200D11 | Control Module Output Power A. General Electrical Failures. Circuit short to ground |
| U200D | SUM-U200D12 | Control Module Output Power A. General Electrical Failures. Circuit short to battery |
| U200E | SUM-U200E11 | Control Module Output Power B. General Electrical Failures. Circuit short to ground |
| U200E | SUM-U200E12 | Control Module Output Power B. General Electrical Failures. Circuit short to battery |
| U2010 | SUM-U201011 | Switch Illumination. General Electrical Failures. Circuit short to ground |
| U2010 | SUM-U201012 | Switch Illumination. General Electrical Failures. Circuit short to battery |
| U2010 | SUM-U201013 | Switch Illumination. General Electrical Failures. Bus off |
| U2013 | SUM-U201311 | Switch Pack. General Electrical Failures. Circuit short to ground |
| U2013 | SUM-U201312 | Switch Pack. General Electrical Failures. Circuit short to battery |
| U2013 | SUM-U201313 | Switch Pack. General Electrical Failures. Bus off |
| U2014 | SUM-U201441 | Control Module Hardware. System Internal Failures. General checksum failure |
| U2014 | SUM-U201444 | Control Module Hardware. System Internal Failures. Data memory failure |
| U2014 | SUM-U201445 | Control Module Hardware. System Internal Failures. Program memory failure |
| U2014 | SUM-U201446 | Control Module Hardware. System Internal Failures. Calibration/parameter memory failure |
| U2016 | SUM-U201647 | Control Module Main Software. System Internal Failures. Watchdog/safety μC failure |
| U2016 | SUM-U201648 | Control Module Main Software. System Internal Failures. Supervision software failure |
| U2016 | SUM-U20164A | Control Module Main Software. System Internal Failures. Incorrect component installed |
| U2016 | SUM-U201663 | Control Module Main Software. Algorithm Based Failures. Circuit/component protection time-out |
| U2016 | SUM-U201667 | Control Module Main Software. Algorithm Based Failures. Signal invalid |
| U201A | SUM-U201A4A | Control Module Main Calibration Data. System Internal Failures. Incorrect component installed |
| U201A | SUM-U201A95 | Control Module Main Calibration Data. Component Failures. Incorrect assembly |
| U2100 | SUM-U210000 | Control Module Not Configured. General Failure Information. No sub type information |
| U2101 | SUM-U210100 | Control Module Configuration Incompatible. General Failure Information. No sub type information |
| U3000 | SUM-U300016 | Control Module. General Electrical Failures. Circuit voltage below threshold |
| U3000 | SUM-U300017 | Control Module. General Electrical Failures. Circuit voltage above threshold |
| U3000 | SUM-U300062 | 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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