DTC 45

DTC 45: ABS Modulator Unit Power Supply

NOTE: There are two different VTM-4 control units available. LX and EX are non-VSA models, and EX-L models are equipped with VSA. If a VTM-4 control unit for a non-VSA model is installed in a model with VSA, DTC 45 will be set. Verify that the correct VTM-4 control unit is installed in the vehicle whenever DTC 45 is set.

LX and EX models without VSA: (P/N 48310-PVJ-A01)
EX-L models with VSA: (P/N 48310-PVJ-003)
1. Clear the DTC.
2. Test-drive the vehicle, and watch the VTM-4 indicator.
Does the VTM-4 indicator come on?
YES-Go to step 3.
NO-The system is OK at this time.
3. Watch the ABS indicator.
Does the ABS indicator come on?
YES-inspect the ABS system.
NO-Go to step 4.








4. Measure the voltage between the A19 terminal of the VTM-4 control unit and body ground with the ignition switch ON (II), and when the engine is cranking.
Is the voltage correct?
YES-Check for loose terminal fit in the VTM-4 control unit connectors. If it is normal, replace the VTM-4 control unit.
NO-Repair open in the wire between the No.11 terminal of the VTM-4 control unit and the driver's under-dash fuse/relay box.