HYBRID/TROUBLE SHOOTING
3–303
INSPECTION PROCEDURE: P3129 (TC7C)
1.
Check that the inverter cooling radiator fan is free from damage.
NO
YES
1.
Set the starter key to the "LOCK" position.
2.
Disconnect the connectors of HV ECU1 and inverter cooling radia-
tor fan.
3.
For the 3rd terminal of inverter cooling radiator fan connector,
inspect the signal line of PCU wire harness (lower side) for short
circuit. (See "Inspecting the PCU harness signal line for short cir-
cuit.")
NO
YES
1
Inspecting the inverter cooling radiator fan
Is any defect found?
Replace the inverter cooling radiator fan.
Go to step 2.
2
Inspecting the signal line of PCU wire harness (lower side) for short circuit
Measurement
conditions
Tester
connections
Standard values
Starter key: LOCK
Inverter cooling
radiator fan con-
nector
3rd terminal
–
Each signal line
10 k
or more
Is any defect found?
Replace the PCU wire harness (lower side).
Replace the inverter cooling radiator fan.
After replacement, go to step 3.