Audio System - AM Static Caused By PEM, Turbo Cars Only
NO: 39-49DATE: 8/23/2005
MODEL:
XC70 173000-191800
S60 315000 - 462700
V70 349000 - 498300
S80 335000 - 406200
M. YEAR: 2004 & 2005
SUBJECT:
AM-Radio Static on Turbo Cars, Caused by PEM.
REFERENCE: VIDA
DESCRIPTION:
Analysis has found that the PWM (Pulse Width Communication) between the Engine Control Module (ECM) and the PEM (Pump Electric Module) can induce a whining noise on the lower frequencies of the AM-band.
From MY 2005 the PEM was introduced on all Turbo models.
PRODUCT MODIFICATION:
From 2005 week 4 (see chassis number limitations in header) a ferrite has been introduced in the cable harness to the PEM. This will minimize the noise on the AM-band.
SERVICE:
Install the service kit according to the instruction shown.
Material
Service solution 1
S60R, V70R, engine code 52 (B5254T4),
Model year 2004 only. Steps 1-8.
1.
Exposing connectors
Lift up the rear seat cushion, see:
Removal, replacement and installation
Body and interior
Interior
Rear seat, passenger seat, seat
Upholstery seat cushion, replacing
Lift the insulation on the right side and expose the
connectors.
Dismantling
2.
Dismantling connector
Remove the six-pin connector from the attaching plate.
Unplug the connector.
Removal
3.
Remove secondary lock
Release the catch and pull out the secondary lock.
Use dismantling tool 951 2853 or a radio
screwdriver, see figure.
4.
Remove cable
Remove the yellow cable in position 6. Use
dismantling tool 951 2639, see figure.
Installation
5.
Install service kit
Install the removed cable in position 1 of the
loose connector that comes with the service kit.
Check that the terminal locks securely.
Press in the secondary lock.
Install the service kit's terminal in the unoccupied
slot of the vehicle's connector (where the yellow
terminal was removed from)
6.
Install both connectors.
7.
Install foam tape
Wrap foam tape around the two-pin connector.
8.
Install connector
Press in the new connector under the plastic
protection and secure the six-pin connector on the
holder.
Restore the insulation and reinstall the seat
cushion.
Service solution 2
S60, V70, S80, engine code 59 (B5254T2)
with steel tank,
Model year 2004 only. Steps 9 - 13.
9.
Exposing connector
Lift up the seat cushion and remove the backrest,
see:
Removal, replacement and installation
Body and interior
Interior
Rear seat, passenger seat, seat
Upholstery seat cushion, replacing
Upholstery back rest, replacing
Removal
10.
Remove cover for fuel pump
Remove:
^ Nuts, 4 pcs.
^ Cover
^ The six-pin connector.
Installation
11.
Install service kit
Install:
^ adapter cable harness between the fuel
pump and the cable harness
^ Foam tape around the loose connector.
Fix the connector on the tank with the supplied tape.
12.
Install cover for fuel pump
Install:
^ Cover
^ Nuts, 4 pcs. Tighten with 10 Nm.
13.
Install backrest and seat cushion
Install backrest and seat cushion, see:
Removal, replacement and installation
Body and interior
Interior
Rear seat, passenger seat, seat
Upholstery seat cushion, replacing
Upholstery back rest, replacing
Service solution 3
S60, V70, S80, engine codes 54 (B5244T5), 52 (B5254T4), 59 (B5254T2), 91 (B6294T),
Model year 2005. All turbo engines. Steps 14 21
14.
Exposing connector
Lift up the rear seat cushion, see:
Removal, replacement and installation
Body and interior
Interior
Rear seat, passenger seat, seat
Upholstery seat cushion, replacing
Lift the insulation on the right side and expose the
connectors.
15.
Dismantling connector
Remove the six-pin connector from the attaching
plate. Unplug the connector.
Removal
16.
Remove secondary lock
Release the catch and pull out the secondary lock.
Use dismantling tool 951 2853 or a radio
screwdriver, see figure.
17.
Remove cable
Remove the yellow cable in position 6. Use
dismantling tool 951 2639, see figure.
Dismantling
18.
Opening cable harness
Carefully cut open the casing 150 mm.
Caution! Cut carefully so that no cable is damaged.
Installation
19.
Install ferrite ring
Wrap the yellow cable three times around the
ferrite ring, see figure.
20.
Install foam tape
Install foam tape around the ferrite ring and the
cable.
Reinstall the cable in the connector, position 6.
21.
Install connector
Plug in the connector and secure it in the holder.
Reinstall the insulation and seat cushion.
WARRANTY CLAIM INFORMATION