V70 2.4 L5-2.4L VIN 61 B5244S (2001)
Throttle Body: All Technical Service Bulletins
Engine Controls - ECM Software Upgrade for ETS
NO: 25-149F
DATE: 03-16-2006
MODEL/YEAR:
C70 1999-2002
S70 1999-2000
S60 (2001 all engine variants), (2002 non-turbo only).
V70 (1999-2001 all engine variants), (2002 non-turbo only).
V70XC, 1999-2000
XC70 2001
S80 1999-2001
SUBJECT:
Electronic Throttle System Software - Upgrade.
REFERENCE:
TNN 149A
DESCRIPTION:
Beginning March 17th 2006 there will be an Electronic Throttle System (ETS) software upgrade available for the vehicles listed above. The software
contains changes that will reduce driver disturbances by allowing the system to better differentiate between glitches or minor disturbances, and system
faults. The upgraded software will also reduce driver disturbances due to idle oscillations caused by dirt build-up in the throttle. TNN 25-149A will be
updated to guide service technicians on the changes. The fault tracing for each DTC in the TNN will give guidance on where it is appropriate to use the
software as a solution for DTC's triggered in the vehicles current software. As the ETS software resides in both the Electronic Throttle Module (ETM)
and the Engine Control Module (ECM), both will receive new software with the upgrade.
When to download the Electronic throttle system upgrade:
^
The Electronic throttle system software upgrade should be installed into a customer's vehicle at the first service opportunity. Where the
customer requests or consents to the upgrade.
1.
If there are no ETS faults in the vehicle, and the customer requests or consents to their ETS being upgraded with the latest software, proceed to
download the software as described in the "Service" section below.
2.
Should the vehicle be brought in with an existent ETS fault:
Fault trace according to INN 25-149A, to best determine if the fault will be resolved by upgrading the software. A repair or service may be needed
before upgrading the software.
Please check the TNN date to ensure the latest version is always being used.
Important Note:
Current VIDA fault tracing for ETS should not be followed unless indicated as part of a diagnosis for a DTC in TNN 25-149A.
If either ETM or ECM should need to be replaced, as part of fault tracing, both the ETM and the ECM will receive the upgraded software, when
the new Module is downloaded. And the upgrade would not need to be made subsequently.
SERVICE:
Upgrade the ETS using the appropriate software part number in the table shown, for the vehicle being serviced.
