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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-441/442 Program Downloading, Control Module (1999-2002) >> Not-Carried: Out/Faulty >> Checking Equipment And Software

Checking Equipment And Software

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.
Fig 1: Identifying Ignition ON
GLL101051Courtesy of VOLVO CARS OF NORTH AMERICA.

Check that ignition is ON.

Check ECC control module power supply to #B5 and to ground terminal #A23 for an open-circuit according to Open-Circuit, Permanent Faults .

Check that programming equipment is correctly connected.

Check that the new software to be loaded is the correct version.

Remedy as necessary.

Erase diagnostic trouble codes (DTCs) before starting programming.

Fig 2: Identifying Connector B
GLL127568Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 3: Identifying Ohmmeter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 4: Climate Control Module Connectors Terminals
GLL127471Courtesy of VOLVO CARS OF NORTH AMERICA.

Do you wish to erase diagnostic trouble codes (DTCs)