SAAB WIS ONLINE

(02-02-854) Insufficient heating or cooling

Symptom: Heating and cooling are experienced as insufficient. No diagnostic trouble code is generated if there is an electrical fault in the solenoid valve for the heat exchanger shut-off valve.

TECHNICAL NEWS
Bulletin Nbr: 02-02-854
Date: ........... Februari 2002
Market: Alla
Insufficient heating or cooling

Cars affected

All Saab 9-5 MY02 within VIN range 23023934 - 23026972 having a solenoid valve for the heat exchanger shut-off valve.

Background

In conjunction with the introduction of a new ACC panel with provisions for cars with and without a solenoid valve for the heat exchanger shut-off valve, diagnostic trouble code generation for this function has been missed in the software. The function of the components is not affected, but this can make fault diagnosis difficult, for example in cases where a customer complains of reduced heating or cooling performance.

Symptom description

Heating and cooling are experienced as insufficient. No diagnostic trouble code is generated if there is an electrical fault in the solenoid valve for the heat exchanger shut-off valve.



Parts required

TECH 2, version 43.000

Procedure

After customer complaint regarding reduced heating or cooling for cars within the specified VIN range, program the ACC panel with HEAT EXCHANGE SOLENOID with the spare part program. Following this, check the function of the system and check for any diagnostic trouble codes. If there are any diagnostic trouble codes, continue fault diagnosis as prescribed.