Cooper (R50) L4-1.6L (W10) (2002)
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Control Module HVAC: All Technical Service Bulletins
A/C - IHKA Intermittently Won't Switch ON
SI M64 03 06
Heating and Air Conditioning Systems
October 2006
Technical Service
This Service Information bulletin supersedes S.M. M64 202 04 dated July 2004.
SUBJECT
IHKA Intermittently Doesn't Switch On
MODEL
R50, R53
SITUATION
Intermittently the IHKA does not switch on until the ignition is cycled.
CAUSE
Poor ground
PROCEDURE
1.
Identify the ground wire (pin 26.5 BR/SW) from IHKA control module connector X610.
2.
This wire is routed through 2 separate splice points.
3.
Route a dedicated ground wire to ground point X13230 located near the drivers door-opening sill.
4.
Retest the system for proper operation.
No additional IHKA control modules are needed for analysis. Do not replace any parts.
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty
Defect Code
Refer to KSD
Labor Operation:
Refer to KSD
Labor Allowance:
Refer to KSD
