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
Combustion PREHEATER Module (CPM) DTCS
COMBUSTION PREHEATER MODULE (CPM) - DTC INDEX
| DTC | Volvo Code | Description |
|---|---|---|
| B1D22 | CPM-B1D2211 | Coolant Temperature Sensor. General Electrical Failures. Circuit short to ground |
| B1D22 | CPM-B1D2215 | Coolant Temperature Sensor. General Electrical Failures. Circuit short to battery or open |
| B1D23 | CPM-B1D2313 | Overheat Sensor. General Electrical Failures. Circuit open |
| B1D24 | CPM-B1D2411 | Glow Plug. General Electrical Failures. Circuit short to ground |
| B1D24 | CPM-B1D2415 | Glow Plug. General Electrical Failures. Circuit short to battery or open |
| B1D25 | CPM-B1D2511 | Heater Fuel Pump. General Electrical Failures. Circuit short to ground |
| B1D25 | CPM-B1D2515 | Heater Fuel Pump. General Electrical Failures. Circuit short to battery or open |
| B1D26 | CPM-B1D2611 | Combustion Air Blower. General Electrical Failures. Circuit short to ground |
| B1D26 | CPM-B1D2615 | Combustion Air Blower. General Electrical Failures. Circuit short to battery or open |
| B1D26 | CPM-B1D2692 | Combustion Air Blower. Component Failures. Performance or incorrect operation |
| B1D26 | CPM-B1D2693 | Combustion Air Blower. Component Failures. No operation |
| B1D27 | CPM-B1D2711 | Heater Coolant Pump. General Electrical Failures. Circuit short to ground |
| B1D27 | CPM-B1D2715 | Heater Coolant Pump. General Electrical Failures. Circuit short to battery or open |
| B1D28 | CPM-B1D2811 | Fuel pre-heater. General Electrical Failures. Circuit short to ground |
| B1D28 | CPM-B1D2815 | Fuel pre-heater. General Electrical Failures. Circuit short to battery or open |
| B1D29 | CPM-B1D2993 | No start, even after restart attempt. Component Failures. No operation |
| B1D30 | CPM-B1D3093 | No start in test mode. Component Failures. No operation |
| B1D31 | CPM-B1D3194 | Flame detected prior to normal operation. Component Failures. Unexpected operation |
| B1D32 | CPM-B1D3292 | Multiple flame interruption during heating cycle. Component Failures. Performance or incorrect operation |
| B1D33 | CPM-B1D3392 | Flame interruption during normal operation. Component Failures. Performance or incorrect operation |
| B1D34 | CPM-B1D3468 | Heater in lock out mode. Algorithm Based Failures. Event information |
| U0010 | CPM-U001000 | Medium Speed CAN Communication Bus. General Failure Information. No sub type information |
| U0028 | CPM-U002808 | Vehicle Communication Bus A. General Failure Information. Bus Signal/Message Failures |
| U0300 | CPM-U030000 | Internal Control Module Software Incompatibility. General Failure Information. No sub type information |
| U1A37 | CPM-U1A3787 | Crash Status Telegram. Bus Signal/Message Failures. Missing message |
| U2101 | CPM-U210100 | Control Module Configuration Incompatible. General Failure Information. No sub type information |
| U3000 | CPM-U300016 | Control Module. General Electrical Failures. Circuit voltage below threshold |
| U3000 | CPM-U300017 | Control Module. General Electrical Failures. Circuit voltage above threshold |
| U3000 | CPM-U300043 | Control Module. System Internal Failures. Special memory failure |
| U3000 | CPM-U300049 | Control Module. System Internal Failures. Internal electronic failure |
| U3003 | CPM-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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