61 35 502 Replacing trailer module (09/2006-03/2009): Notes

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Special tools required:

61 0 202
61 0 230
61 0 316
61 0 324

NOTE:

See GENERAL ELECTRICAL SYSTEM - SPECIAL TOOL .

NOTE: From 03/2009 trailer module AHM3+ will be replaced by trailer module AHM4R.
Plug connectors and associated pin assignments must be adapted if the old plug connector AHM3(+) is fitted.

Plug connector, new AHM4
Plug connector, old AHM3(+)

Fig 1: Identifying Plug Connector Models

Courtesy of BMW OF NORTH AMERICA, INC.

Necessary preliminary tasks:

Remove trailer module

From build date/version 03/2007 Series E60/61:

Installation:

Cut out device holder up to marking (1).

Cut out indentation in area (2).

Make sure AHM module is exactly seated and wiring harness is correctly routed.

Fig 2: Identifying Marking On Device Holder

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Positions of plugs and associated pin assignments are set out in the diagnosis system.
The repair instruction represents the highest vehicle configuration. Pin assignments of plug connections may be absent if optional equipments are not fitted.