VOLVO
IEM-P0A5D19 - Drive Motor "A" Phase U Current. General Electrical Failures. Circuit current above threshold
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 current is too high in at least one of the phases feeding the electric rear axle (ERAD). The code is set while driving in gear D or R. The fault may lie in the high voltage cable connection, in the wiring between the ERAD and the voltage converter (ISC), or in the ISC itself. Electric propulsion is then not possible.
Possible causes
- High voltage cable not connected or poorly connected to the voltage converter (ISC)
- Loose contacts, contact resistance or oxidation at the connections between the ERAD and the ISC
- Open circuit in the high voltage cable
- High voltage cable short-circuited to ground
- Damaged wiring between the ERAD and the ISC
- Internal fault in the voltage converter (ISC)
What you can do
- 1Have a workshop check the high voltage cable connection to the voltage converter (ISC) and the wiring to the electric rear axle. High voltage systems may only be handled by qualified personnel
- 2If you have a diagnostic tool: compare the current in the different phases in live data during a drive in gear D or R
- 3Do not work on the high voltage cabling yourself
- 4After the repair, check that the code is not stored again while driving
Symptoms you may notice4
- Text window and warning symbol with a text message
- Drive mode PURE disengages automatically or is unavailable
- Drive mode AWD disengages automatically or is unavailable
- Drive mode HYBRID: the combustion engine runs all the time or too often
What the fault can affect2
- Electric propulsion is not possible
- Brake energy regeneration from the electric rear axle is not possible
General guidance for car owners. Diagnosis on the car can point to a different cause.