DTC 26-1
DTC 26-1: VSA or ABS Modulator Control Unit or Wire Harness1. Clear the DTCs.
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 VSA/ABS indicator.
Does the VSA/ABS indicator come on?
YES-Check the VSA or ABS system for DTCs.
- ABS
- VSA
NO-Go to step 4.
4. Raise the vehicle, and make sure it is securely supported.
5. Turn the ignition switch ON (II).
6. Measure the voltage between the A3, A5, A7, and A9 terminals of the VTM-4 control unit and body ground while rotating the appropriate wheel one rotation a second.
Are all four readings 2 V to 3 V?
YES-Check for loose terminal fit in the VTM-4 control unit. If it is normal, replace the VTM-4 control unit.
NO-Check for loose wires or poor connections between the VTM-4 control unit and the VSA or ABS control unit. If it is normal, replace the VSA or ABS modulator assembly.