Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLVO2004C70 2.4 63REPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSCAB CONTROL UNIT (CCU) DIAGNOSTIC TROUBLE CODES (DTC) DIAGNOSTICS - 2 OF 2 (CONVERTIBLE)CCU-230 CONVERTIBLE CONTROL UNIT OUTPUTS. SIGNAL TOO HIGH. INTERMITTENT FAULT (1998-2004)DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION
2004 Volvo C70 2.4 63
Diagnostic trouble code (DTC) information
2004 Volvo C70 2.4 63SECTION Diagnostic trouble code (DTC) information
Condition
Diagnostic trouble code (DTC) CCU-230 is stored if any of the following outputs are short circuited to voltage or overloaded at a high ambient temperature.
- Warning signal buzzer
- Trunk lid inhibitor
- Side windows down
- Heated rear window.
Possible Source
- Short-circuit to supply voltage in the signal cable
- Overload in the component at high ambient temperature.
Fault symptom[s]
- No warning signal during convertible top operation
- The trunk lid can be opened during convertible top operation
- The side windows do not raise or lower when the convertible top is operating
- Rear demist does not operate.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.