Modulator Valve
- Disconnect modulator valve connector. Check resistance of hold valve solenoid winding between terminals No. 3 and 4 of modulator valve. See Fig 1 . Resistance should be 5.0 ohms.
- Check resistance of release valve solenoid winding between modulator valve terminals No. 1 and 2. Resistance should be 4.3 ohms. If resistance values are not within specification, replace modulator valve as an assembly.