HYBRID/TROUBLE SHOOTING
3–680
INSPECTION PROCEDURE: P0AA4 (TCD9)
1.
Set the starter key to the "LOCK" position.
2.
Connect the diagnosis tool (HINO-DX) to the vehicle.
3.
Set the starter key to the "ON" position.
4.
In [Fault Information] on the diagnosis tool screen, check if any
DTC other than P0AA4-D9 is detected:
NO
YES
1.
Set the starter key to the "LOCK" position.
2.
Disconnect the service plug and wait for 7 minutes or more.
3.
Remove the PCU top cover.
4.
Remove the system main resistor.
5.
Using the electrical tester, measure the resistance between the
terminals of system main resistor.
NO
YES
1
Reading the DTC [HINO-DX]
SHTS03ZZZ0300444
Is any DTC other than P0AA4-D9 detected?
Perform troubleshooting for each of related
DTC.
Go to step 2.
2
Inspecting the system main resistor
SHTS03ZZZ0300445
Measurement
conditions
Tester
connections
Standard values
—
Between the termi-
nals of system
main resistor
29.5
–
30.5
Is the measured value within the range of standard value?
Go to step 3.
Replace the system main resistor.
After replacement, go to step 3.