Control Module Swapping (TJ 31946.1.2)

Publication date: 2019-11-14
Reference number: TJ 31946.1.2
Supersedes refnos: TJ 31946.1.0

CONTROL MODULE SWAPPING

TECHNICAL SERVICE BULLETIN

Reference Number(s): TJ 31946.1.2, Date of Issue: November 14, 2019

VOLVO:	All Models
FUNC GROUP:	3600
FUNC DESC:	Other electrical equipment

ATTACHMENT

VEHICLE TYPE

Type	Eng	Eng Desc	Sales	Body	Gear	Steer	Model Year	Plant	Chassis range	Struc Week Range
XXX							1927-9999		0000001-9999999	0-0

CSC CUSTOMER SYMPTOM CODES

Code	Description
3L	Technician information/Repair information/Not for warranty use
2V	Technician information/Software/Vehicle communication/Not for warranty use

VST OPERATION NUMBER

DTC DIAGNOSTIC TROUBLE CODES

Rows beginning with * are modified

NOTE: If using a printed copy of this Technical Journal, first check for the latest online version.

TEXT

DESCRIPTION

Swapping control modules from vehicle to vehicle for diagnostics should be avoided.

Swapping control modules may result in consequential damage to the swapped control module and in certain cases several other control modules in the vehicle.

Swapping the Driver Information Module (DEVI) is strictly forbidden as the DEVI it is the main carrier of the odometer function, and will, in case of swapping, result in manipulated odometer value.

SERVICE

Please do NOT swap any control modules from vehicle to vehicle for testing, unless instructed to do so in a Vehicle Report by the Technical Helpdesk.

VEHICLE REPORT

N/A