HYBRID/TROUBLE SHOOTING
3–230
1.
Remove the radiator cap and check the height from the coolant
level to the filling port.
NO
YES
1.
Set the starter key to the "LOCK" position.
2.
Disconnect the inverter cooling pump and the HV ECU2 connec-
tors.
3.
For the 3rd terminal of inverter cooling pump connector, inspect
the signal line of PCU wire harness (lower side) for short circuit.
(See "Inspecting the PCU harness signal line for short circuit.")
NO
YES
3
Inspecting the coolant level
Is the coolant level about 10 mm from the filling port?
Go to step 4.
Add coolant. (See "Adding coolant.")
After adding coolant, perform the inspection
again.
4
Inspecting the signal line of PCU wire harness (lower side) for short circuit 1
Measurement
conditions
Tester
connections
Standard values
Starter key: LOCK
Inverter cooling
pump connector
3rd terminal
–
Each signal line
10 k
or more
Is any defect found?
Replace the PCU wire harness (lower side).
Go to step 5.
