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Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control Module (CCM) Diagnostic Trouble Codes - 1 Of 2 >> CCM-000B: Left Temperature Damper Motor. Signal Too Low (1999-2004) >> Signal too low >> Checking the wiring

Checking the wiring

Check the control module connector (terminal #B18) and damper motor connector terminal #1. Check for contact resistance and oxidation. Check for loose connections. Check for damage carefully.

Check the signal cable between control module terminal #B18 and damper motor terminal #1. Check for an intermittent open-circuit.

Check the wiring between the right-hand temperature damper motor and the left-hand temperature damper motor. Check for an intermittent open-circuit.

Check the signal cable between control module terminal #B18 and damper motor terminal #1. Check for an intermittent short-circuit to supply voltage.

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