VOLVO
DCDC-P0A101C - DC/DC Converter Status Circuit High. General Electrical Failures. Circuit voltage out of range
System
Unknown System / Manufacturer Specific
Volvo models this fault code applies to
Applies to the following models:
1 modelV60 (2011–)
Show models by year and engine (2)
What does this fault code mean?
The DC/DC converter control module has registered that the status circuit is high and that the voltage in the circuit is outside the permitted range. The code may be a follow-up fault from another control module in the high voltage circuit, such as the on-board charger (OBC). In that case the fault in the charger must be fixed first, then the code can be cleared. A break or short in the high voltage wiring between the battery, the charger and the converter can also cause it, which affects charging of the high voltage battery.
Possible causes
- Fault in another control module in the high voltage circuit, such as the on-board charger (OBC)
- Break or short in the connectors or high voltage wiring between the battery, the charger and the converter
- Damaged on-board charger (OBC) or damaged DC/DC converter
What you can do
- 1Read all the fault codes in the car. If the on-board charger (OBC) has its own code, deal with that first, since this code is then only a follow-on fault
- 2Have a workshop check that the connectors and high voltage wiring between the battery, the charger and the converter are free from short circuits and breaks
- 3Once the root cause is fixed, switch the ignition off and on again, clear the code and check whether it returns
- 4The high voltage system may only be handled by qualified personnel. Do not work on the charger, the converter or their wiring yourself
Symptoms you may notice4
- Warning symbol and message in the display
- Charging of the high voltage battery is absent or reduced while driving
- The high voltage battery discharges or charges poorly
- Drive modes PURE, SAVE and AWD disengage automatically or cannot be selected
What the fault can affect2
- No charging of the high voltage battery
- Hybrid drive mode is forced
General guidance for car owners. Diagnosis on the car can point to a different cause.