DEM-0006, DEM-0007, DEM-000B Volvo AWD – Haldex Feed Pump & DEM Module
Diagnostic and 1:1 Cloning guide for Volvo AWD models with Haldex Gen 3/4/5 covering DEM module faults DEM-0006, DEM-0007, and DEM-000B hydraulic feed pump.
Vehicle
VOLVO
Codes
3 units
Analysis Type
Technical Expert
Status
Analyzed
Technical Analysis
DEM-0006, DEM-0007, and DEM-000B on Volvo AWD vehicles indicate failure of the electric Haldex pre-charge pump or internal output driver burnout in the Differential Electronic Module (DEM).
Expected Symptoms
System Impact
Potential Fault Sources
Workflow / Methodology
Verify supply voltage and reference ground for DEM-0006, DEM-0007, DEM-000B with multimeter at key ON.
Verify DIM main power feed at cluster harness connector (must remain stable above 10.5V during cranking).
Check CAN bus communication response and frame timing to DIM via diagnostic tool.
OBD Tuning provides 1:1 Complete Bench Cloning of the instrument cluster to a tested replacement unit.
Live Data & Mätvärdestoleranser (Är/Bör-värden)
Fabriksgodkända referensvärden vid diagnos och live-avläsning
| Parameter / Signal | Testvillkor | Bör-värde (Normalt) | Avvikelse / Varning |
|---|---|---|---|
| DEM Oljetryck Haldex | Pump aktiv / Drift | 30.0 – 38.5 bar | < 20.0 bar (Tryckfall) |
| DEM Pump Strömförbrukning | Aktiv pumpning | 1.5 – 2.8 A | > 3.8 A (Blockerad pump/Haveririsk) |
| DEM Matningsspänning | Tändning på | 12.2 – 14.5 V | < 10.8 V (Säkring/Kablagefel) |
Assessment & Action Proposal
Technical Recommendation
Replacement of Haldex feed pump, fluid and filter service, plus 1:1 Cloning / rebuild of damaged DEM module at OBD Tuning.
Need a deeper analysis? Use our advanced fault code analyzer to find likely connections and in-depth guidance.
Start Fault Code AnalyzerVanliga frågor om dessa felkoder
Vad är den primära orsaken till felkoderna?
DEM-0006, DEM-0007, and DEM-000B on Volvo AWD vehicles indicate failure of the electric Haldex pre-charge pump or internal output driver burnout in the Differential Electronic Module (DEM).
Kan man köra vidare med tänd motorlampa / varningslampa?
Körning med aktiva felkoder kan leda till strypt motoreffekt (nödläge / Limp Home), blockerad partikelfilterregenerering eller följdskador på mekaniska komponenter. Felsökning bör genomföras omgående.
Hur åtgärdas kombinationen på säkrast sätt?
Replacement of Haldex feed pump, fluid and filter service, plus 1:1 Cloning / rebuild of damaged DEM module at OBD Tuning.