Checking cables

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.

Check RTI control module and display connectors for contact resistance and oxidation according to Contact resistance and oxidation .

Check cable between control module #A12 and display terminal 5 for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

Check the cable between the control module #A28 and display terminal 8 for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

Check the cable between the control module #A27 and display terminal 7 for an open-circuit according to Open-circuit, permanent faults and for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

Remedy as necessary.

Other information:

To access/replace the control module, see Replacing the control module, old system .
To access/replace the display, see Replacing the display .
For connecting breakout box to control module, see Connecting the breakout box .

Fig 1: Identifying Connector B Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Climate Control Module Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.