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Home >> Volvo >> 2003 >> C70 2.3 53, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 93 (Electronic Climate Control (ECC), Manual Climate Control (MCC), Heater Module (HEA) - Diagnostic Trouble Code (DTC) Diagnostics - 2 Of 2 (Coupe)) >> ECC-420/421 ECC Control Module (1999-2002) >> Internal Fault >> Programming the ECC Control Module >> Programming the Sensitivity Of the Sun Sensor

Programming the Sensitivity Of the Sun Sensor

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: The intensity of the sun affects the temperature in the passenger compartment. In order to maintain a stable climate in the passenger compartment, irrespective of the intensity of the sun, the ECC control module calculates the climate control based on the signal from the sun sensor (which indicates the intensity of the sunlight). The sensitivity to the sunlight can be programmed. This allows the calculation of temperature settings by the ECC control module to be adapted. This allows for climate control that can be adapted to the wishes of the driver. The sensitivity can be set in 7 stages from -4 to +2. The higher the value chosen, the more the control module compensates for the intensity of the sun. However, if the compensation is set too high, droughts may be felt in the passenger compartment when the blower fan speed increases slightly. The lower the setting chosen, the less the control module compensates for the intensity of the sunlight. If the setting selected is too low, the passenger compartment may become too warm when the intensity of the sunlight is high.
NOTE: The setting should only be changed if it is definitely the sun compensation that the customer is dissatisfied with.
Fig 1: Identifying Ignition ON
GLL101051Courtesy of VOLVO CARS OF NORTH AMERICA.

Any further programming to be carried out?