HYBRID/TROUBLE SHOOTING
3–647
INSPECTION PROCEDURE: P0A78 (TC14)
1.
Set the starter key to the "LOCK" position.
2.
Remove the inverter terminal block cover and the ECU box termi-
nal block cover.
3.
Using the electrical tester, measure the resistance between the
terminals of inverter and high-voltage J/B (in the ECU box).
NO
YES
1.
Check the P(+) and N(-) terminals of DC high-voltage cable
(inverter side) for failing connection (looseness, wear, or damage).
NO
YES
1
Inspecting the DC high-voltage cable for continuity 1
INV(+)
2
1
INV(-)
SHTS03ZZZ0300418
Measurement
conditions
Tester
connections
Standard values
Starter key: LOCK
Inverter (high-volt-
age terminal)
–
High-voltage J/B
(in ECU box)
P(1) terminal
–
INV(+) terminal
N(2) terminal
–
INV(-) terminal
1
or less
(With continuity)
Is the measured value within the range of standard value?
Go to step 2.
Replace the DC high-voltage cable between
the terminals of inverter and high-voltage JB
(in the ECU box).
2
Inspecting the DC high-voltage cable 1
Is any defect found?
Retighten the terminals.
Replace the terminals if abnormal wear or
melting damage is detected.
Go to step 3.