508
REVO-E Heat pump 5 Troubleshooting
– Eliminate error in frequency converter according to
EPA description (see operating instructions of diag-
nostics case)
Unlock - ignition off and wait 1 min
F32 HVIL error
System behavior
– Cooling Mode not available
Necessary inspections
– HVIL power using DCT (13-19 mA)
– Other high-voltage components affected in vehicle
– HVIL "loop" in the air-conditioning system according
to wiring plan
– HVIL resistance in the system (~10 Ohm)
– HVIL resistance of system + cable harness (SC620
separated) ~11 Ohm
– HVIL power supply for vehicle according to vehicle
documentation
Actions
– Replace cable harness
– Replace SC620
– Repair according to Volvo documentation
There are two options for the diagnosis of the frequency
converter:
1. MMI handheld control device
This is sufficient for reading the fault memory, but
without precise information about the time.
=> Read out current errors of the frequency converter
=> Read out error memory (inactive errors) of the
frequency converter
2. Analysis via PC (recommended)
The expert-level diagnosis (detailed information of the
frequency converter control) can be carried out by
means of the manufacturer diagnostic software.
This is part of the DCT setup file (data CD).
=> Read out current errors
=> Read out the last 20 errors of the frequency
converter (“Time course” field)
=> All errors over lifetime incl. counter (“Counter” field)
=> Read out operating hours (600V DC power supply)
=> Possible to record data
In both cases, the frequency converter must be provided
with 600V DC. Hybrid system must be active.
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