Toyota Prius 2010 Manual page 18

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.
16. CHECK HYBRID BATTERY JUNCTION BLOCK
CAUTION:
Be sure to wear insulated gloves.
(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.
(b) Disconnect the frame wire T4 and T3 from the hybrid battery
junction block.
HINT:
For the removal and installation procedures related to the frame wire,
.
(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
T4-1 (CBI) - Body ground and
shielded wire ground
T3-1 (CEI) - Body ground and
shielded wire ground
NG
REPLACE FRAME WIRE
OK
REPLACE HYBRID BATTERY JUNCTION BLOCK
SWITCH SPECIFIED
CONDITION CONDITION
Power switch off 10 MΩ or higher
Power switch off 10 MΩ or higher