C70 Coupe L5-2.3L Turbo VIN 53 B5234T3 (2001)

Control Module HVAC: Procedures
Removing, Replacing ECC/MCC Control Module
Preparations:
NOTE: Before replacing the control module read off data from the control module. Program this data back into the new control module.
Removing ECC control module
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Ignition off.
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Remove radio.
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Insert your hand through the radio compartment and remove the ECC control module by pressing it out from behind.
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Disconnect both ECC control module connectors.
Check
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Check that the control module connectors are intact.
Installing ECC control module
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In reverse order.
Follow-up work
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Program data read off the old control module.
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Self-adjustment of the motors should be carried out after programming.
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Check that no diagnostic trouble codes (DTCs) have been stored while the repair was carried out.
Removing the power unit (Electronic climate control)