DTC Troubleshooting: U3006-17
DTC U3006-17: Power Source Failure for ECU (High Voltage)
NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description
DTC
Freeze Frame
U3006-17 Power Source Failure for ECU (High Voltage)
    

1.
Problem verification:

Problem verification
?1.
Turn the vehicle to the ON mode.

?2.
Clear the DTC with the HDS.


?3.
Turn the vehicle to the OFF (LOCK) mode, then start the engine.

?4.
Check for DTCs with the HDS.
DTC Description
DTC
Freeze Frame
U3006-17 Power Source Failure for ECU (High Voltage)
    

Is DTC U3006-17 indicated?

     
YES
     
     
     
The failure is duplicated. Go to step 2.
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the Freeze data/on-board snapshot.?
2.
VSA modulator-control unit check:

VSA modulator-control unit check
?1.
With the engine still running, check and note the parameter(s) below with the HDS.
Signal
Current conditions
Values
Unit
BATTERY VOLTAGE
    

?2.
Using a voltmeter, measure and note the voltage across the 12 volt battery terminals.
NOTE: If the voltage is more than 15.1 V, troubleshoot the PGM-FI DTCs.

?3.
Compare the voltage noted in step 2-1 to the voltage in step 2-2.

Is the difference between the two voltage readings less than 3 V?

     
YES
     
     
     
     
NO
     
     
     
Go to step 3.
3.
VSA modulator-control unit check (update):

VSA modulator-control unit check (update)
?1.
Update the VSA modulator-control unit if it does not have the latest software.

?2.
Turn the vehicle to the OFF (LOCK) mode, then start the engine.

?3.
Check for DTCs with the HDS.
DTC Description
DTC
Freeze Frame
     

Is DTC U3006-17 indicated?

     
YES
     
     
     
Check for loose terminals and poor connections in the VSA modulator-control unit 38P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit.?
     
NO
     
     
     
Troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.?