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HOMESERVICE MANUALSVOLVO2010XC70 AWD L6-3.2L VIN 96 B6324S2REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTECHNICAL SERVICE BULLETINSBY SYMPTOMCUSTOMER INTERESTDRIVETRAIN - DEM FAILURE DURING SOFTWARE UPDATE
2010 Volvo XC70 AWD L6-3.2L VIN 96 B6324S2
Drivetrain - DEM Failure During Software Update
2010 Volvo XC70 AWD L6-3.2L VIN 96 B6324S2SECTION Drivetrain - DEM Failure During Software Update
Status: Released
Status Date: 2010-04-08
Issue Date: 2010-04-06
Reference: VIDA, VSTG
Title: Differential Electronic Module (DEM) Micro controller failure
Ref No: US21868.1.0 en-GB
Partner 3 US 7510 Volvo Cars North America
Func Group: 4651
Func Desc: final drive; Automatic Operation Clutch
Attachment
Vehicle Type
CSC
DTC
Text
For Your Information CSC Customer Symptom Code
Note!
If using a printed copy of this Retailer Technical Journal, first check for the latest online version.
DESCRIPTION:
During a software download (SWDL) the DEM micro controller might fail. The symptom will be a "dead" DEM on the Controller Area Network (CAN). If the DEM has no communication for 5 seconds after the ignition is switched to position 2 some other control units might set Diagnostic Trouble Codes (DTCs) for "No communication" with the DEM.
PRODUCT MODIFICATION:
The new DEM with new Primary Boot Loader (PBL) was introduced during structure week 2009 week 25 for plant code 21 and during structure week 2009 week 26 for plant code 22. See chassis ranges in the header. Note that the plant code can be found in the 11th digit of the Vehicle Identification Number (VIN). A "1" in the 11th digit of the VIN indicates that the vehicle was built in plant 21 and a "2" in the 11th digit of the VIN indicates that the vehicle was built in plant 22.
SERVICE:
Check the DEM through VIDA/SoftWare/Advanced/Send Prog. Choose DEM and try to read Hardware number or Serial number. If this is not possible make sure that the power supply to DEM is OK.
If the power supply is OK and there is still no communication with the DEM replace the DEM according to VIDA.
VOLVO SERVICE TIME GUIDE (VSTG) INFO:
Operation number 46030-2 - Differential Electronic Module (DEM) replace - See VSTG Operation number 36004-2 - Control module Software download - See VSTG
- Claims may be submitted under the new car warranty when there is a documented customer complaint using claim type: 01
- Labor times are valid at the time of release and are subject to change.
Status Date: 2010-04-08
Issue Date: 2010-04-06
Reference: VIDA, VSTG
Title: Differential Electronic Module (DEM) Micro controller failure
Ref No: US21868.1.0 en-GB
Partner 3 US 7510 Volvo Cars North America
Func Group: 4651
Func Desc: final drive; Automatic Operation Clutch
Attachment
Vehicle Type
CSC
DTC
Text
For Your Information CSC Customer Symptom Code
Note!
If using a printed copy of this Retailer Technical Journal, first check for the latest online version.
DESCRIPTION:
During a software download (SWDL) the DEM micro controller might fail. The symptom will be a "dead" DEM on the Controller Area Network (CAN). If the DEM has no communication for 5 seconds after the ignition is switched to position 2 some other control units might set Diagnostic Trouble Codes (DTCs) for "No communication" with the DEM.
PRODUCT MODIFICATION:
The new DEM with new Primary Boot Loader (PBL) was introduced during structure week 2009 week 25 for plant code 21 and during structure week 2009 week 26 for plant code 22. See chassis ranges in the header. Note that the plant code can be found in the 11th digit of the Vehicle Identification Number (VIN). A "1" in the 11th digit of the VIN indicates that the vehicle was built in plant 21 and a "2" in the 11th digit of the VIN indicates that the vehicle was built in plant 22.
SERVICE:
Check the DEM through VIDA/SoftWare/Advanced/Send Prog. Choose DEM and try to read Hardware number or Serial number. If this is not possible make sure that the power supply to DEM is OK.
If the power supply is OK and there is still no communication with the DEM replace the DEM according to VIDA.
VOLVO SERVICE TIME GUIDE (VSTG) INFO:
Operation number 46030-2 - Differential Electronic Module (DEM) replace - See VSTG Operation number 36004-2 - Control module Software download - See VSTG
- Claims may be submitted under the new car warranty when there is a documented customer complaint using claim type: 01
- Labor times are valid at the time of release and are subject to change.
RENDER: 1.0x
NO RELATED
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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.