DTC: U3003-16 (Adaptive Damper Control Unit)

DTC U3003-16  : Adaptive Damper Control Unit +B Voltage Low Failure

NOTE: 

• Before you troubleshoot, review the general troubleshooting information .
• Check for PGM-FI DTCs with the HDS, and troubleshoot the PGM-FI DTCs first .

DTC (Adaptive Damper System)

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 ON mode.

   -4. Wait for 60 seconds or more.

   -5. Check for DTCs with the HDS.

   DTC Description	DTC
   U3003-16 Adaptive Damper Control Unit +B Voltage Low Failure

   Is DTC U3003-16 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. Fuse check

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Check the following fuse.

   Fuse

   No. B44

   Is the fuse OK?

   YES 

   The fuse is OK. Reinstall the fuse, then go to step 3.

   NO 

   Replace the fuse. If the fuse blows again, repair a short to body ground in the No. B44 fuse circuit.

3. Open wire check (+B ADS line)

   -1. Disconnect the following connector.

   Adaptive damper control unit 24P connector

   -2. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Adaptive damper control unit 24P connector: disconnected
   Test point 1	Adaptive damper control unit 24P connector No. 8
   Test point 2	Body ground

   Is there battery voltage?

   YES 

   Replace the adaptive damper control unit .

   NO 

   Repair an open in the wire between the adaptive damper control unit and the No. B44 fuse.