VOLVO CAR

SERVICE AND PARTS BUSINESS

Technical Journal
TITLE:

DEM-P188918 and AWD disabled message in DIM
REF NO:

ISSUING DEPARTMENT:

CAR MARKET:

TJ 31292

Technical Service

United States and Canada

PARTNER:

ISSUE DATE:

STATUS DATE:

3 US 7510 Volvo Cars North America

2016-02-15

2016-03-07

FUNC GROUP:

4651

FUNC DESC:

Final drive; Automatic Operation
Clutch

Page 1 of 3

“Right first time in Time”
Attachment
File Name
Black sludge.pdf
Goodcalibnoise.mov

File Size
0.4022 MB
0.2110 MB

Vehicle Type
Type

Eng

Eng
Desc

Sales

15X
1XX
256

Body

Gear
C
6
C

Steer

Model Year

Plant

2016-9999
2013-9999
2016-9999

Chassis range
-

Struc Week
Range
201546-999952
201220-999952
201505-999952

CSC Customer Symptom Codes
Code
MU

Description
4-wheel/all wheel drive/Does not work

VST Operation Number
VST Operation Number
36050-2
99400-2
46504-2

Description
Calibrating/Identifying with VIDA
US-Cleaning acc. to TJ 31292
Oil pump Active on Demand Coupling replace.

Produced in the USA and available as an electronic document. Hard copy documents are printed in USA on recycled paper containing
a minimum of 50% wastepaper and 10% post-consumer waste.
© 2016 VOLVO CAR USA, LLC

Technical Journal 31292
DTC Diagnostic Trouble Codes
Control Module
DEM

Code
P188918

Fault Type
Permanent

Text
DESCRIPTION:
AWD=All Wheel Drive
DIM= Driver Information Module
DTC= Diagnostic Trouble code
AOC= Active On Demand Coupling
DEM= Differential Electronic Module
If the “AWD disabled” is posted in DIM and DTC P188918 is set in DEM then follow advice under
SERVICE.
SERVICE:
1. Remove oil pump from AOC (Active On demand Coupling)and inspect the strainer. (See att.)
2. Clean strainer with lint-free cloth, do not use any cleaning liquids (this can contaminate the oil)
3. Clean pump sump in AOC, do not use any cleaning liquids (this can contaminate the oil)
4. Assemble cleaned pump to AOC
5. Fill up with new oil to correct oil level in AOC according to VIDA.
6. Perform a calibration using VIDA
If there is a screeching noise (see attachment) and the calibration finishes within one minute, the AOC is
OK, and sludge on the strainer and/or air in the oil system is root cause. Release the car.
If there is not a screeching noise, and the calibration process takes more than one minute due to
autostarting two times, then do a test drive while trying to provoke front wheels slip (obey all traffic
laws and be aware of your surrounding). If the DTC returns, then replace the complete AOC.
If the car is inside structure week 201220-201419, use VIDA to order and download the following SW
after AOC replacement:
31411060 for car 134, 155, & 156
31411059 for car 124 & 136
VEHICLE REPORT:
Yes, please submit a Vehicle Report if the service solution described in this TJ has no effect. Use
concern area “Vehicle Report” and sub concern area “Support not needed”, use function group 4651.

To view TJ attachment continue to next page. This has one attachment and one
sound file.

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2016-03-07

Technical Journal 31292

2016-03-07

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