A/C - Hard To Control Passenger Side Temperature: Overview
Bulletin Number: 854-2578Date: April 2006
Market: all
ACC/MCP has difficulty controlling and maintaining the temperature on the passenger side
Cars affected
Saab 9-5 M98-04
LHD: up to and including M04 Vehicle Identification Number 43010216
RHD: up to and including M04 Vehicle Identification Number 43013832
including those updated with 53 35 831 (CA: 30591598)/53 36 664 (CA: 30592689) Service kit, Heat exchanger housing LHD or 53 35 823/53 36 672 Service kit, Heat exchanger housing RHD in accordance with TSB 854-2396 ed. 2 or TSB 854-2411 ed. 2.
Background
The air mixing damper (heater damper) shaft may fail at which temperature control operates unsatisfactorily or not at all. In addition, temperature control in the rear seat may be affected. The nature of the failure may be such that the problem is intermittent.
The diagnostic trouble codes B2295 and B2495 may be generated.
In many cases the air mixing damper shaft is only broken in the area from the outer end closest to the stepping motor to 30-40 mm in toward the damper, and can then be repaired using this method. Consequently, repairs in accordance with TSB 854-2411 ed. 2 (US/CA) or 854-2396 ed. 2 (other markets) respectively are not necessary.
In the case of customer complaint the air mixing damper shaft must be checked in accordance with the following method.
Symptom description
ACC/MCP has difficulty controlling and maintaining the temperature on the passenger side.
Parts required
Warranty/Time Information
In the case of customer complaint and if the car is within the warranty period, use the following information to fill out the claim:
Failed Object: 85434
Fault/Reason code: 71
Location code: 09 (US=4 Right/Passenger Side)
Warranty Type (US): 01
Repair/Action code: 01
Labor Operation (US): 8543403
Labor Operation (CA): D0580
Time: 0.7 hr
Fault diagnosis procedure is not available.
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