Checking The Programming Of Blower Motor Speed

Trouble-Shooting Information

Condition

- No diagnostic trouble codes are stored.

Possible source

- Climate control module (CCM) blower motor speed incorrectly programmed.

Checking Programming Of Blower Motor Speed

Reading/programming the blower motor speed







HINT: Blower motor speed and air-distribution can be adjusted to air-conditioning AUTO-position. Adjustment is done by programming climate control module (CCM) which allows changes in air-distribution of approximately +/- 8 litres/second compared with normal position.







- 0=-1.0V
- 1=-0.5V
- 2=0V (preset value)
- 3=+0.5V
- 4=+1.0V.

If the climate control module (CCM) is programmed to a lower blower motor speed than normal (-V), interior air distribution is reduced which can make de-misting of windows difficult. If climate control module (CCM) is programmed to higher blower motor speed than normal (+V), an increased de-misting of windows is maintained but with a higher noise-level from the blower motor.

- Ignition on.

Checking the programming of blower motor speed.

Do the necessary corrective action.