Toyota Prius 2010 Manual page 16

(a) Check that the service plug grip is not installed.
NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the
repair manual because this may cause a malfunction.
14. CHECK NO. 2 ENGINE WIRE
CAUTION:
Be sure to wear insulated gloves.
(a) Check that the service plug grip is not installed.
NOTICE:
(b) Disconnect the No. 2 engine wire (air conditioning harness) E2
from the inverter with converter assembly.
(c) Using a megohmmeter set to 500 V, measure the resistance
according to the value(s) in the table below.
NOTICE:
Be sure to set the megohmmeter to 500 V when performing this
test. Using a setting higher than 500 V can result in damage to the
component being inspected.
Standard Resistance:
TESTER CONNECTION
E2-1 (ACPB) - Body ground and
shielded wire ground
E2-2 (ACPE) - Body ground and
shielded wire ground
Text in Illustration
*1 No. 2 Engine Wire
(Air Conditioning Harness)
*2 Shielded Wire Ground
NG
CHECK NO. 2 ENGINE WIRE
OK
REPLACE INVERTER WITH CONVERTER ASSEMBLY
SWITCH SPECIFIED
CONDITION CONDITION
Power switch off 3 MΩ or higher
Power switch off 3 MΩ or higher