DTC U3003-17 (VSA Control Unit)

DTC U3003-17  : Electric Parking Brake Control Unit Power Source Circuit (+B) High Voltage

NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC (VSA)

1. 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 to the READY TO DRIVE mode.

   -4. Check for DTCs with the HDS.

   DTC Description	DTC
   U3003-17 Electric Parking Brake Control Unit Power Source Circuit (+B) High Voltage

   Is DTC U3003-17 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 .

2. VSA modulator-control unit check

   -1. Check the parameter(s) below with the HDS.

   Signal	Threshold		Current conditions
   	Values	Unit	Values	Unit
   BATTERY VOLTAGE	More than 16.5	V

   Do the current condition(s) match the threshold?

   YES 

   Check the 12 volt battery , and check the electric powertrain system DTCs .

   NO 

   Check for loose terminals and poor connections in the VSA modulator-control unit 46P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the VSA modulator-control unit .