Check Hydraulic Unit Connector C/ED [EG3]

Check Hydraulic Unit Connector C/ED





- Ignition off.
- Check hydraulic unit connector C/ED for contact resistance and oxidation as per HA6 Contact Resistance and Oxidation [HA6]





NOTE: Check particularly carefully that connector C/ED is connected correctly and that pin and sleeves are free from damage, sitting properly and are making good contact. This applies particularly to the pin and sleeves for the DTC concerned.

- Connect hydraulic unit connector C/ED.
- Disconnect control module.

Connect an ohmmeter between test box #3 and:
- #20 (DTC 4-1-1)
- #2 (DTC 4-1-2)
- #38 (DTC 4-1-3)
- #21 (DTC 4-1-4)
- #54 (DTC 4-2-1)
- #36 (DTC 4-2-2)
- #37 (DTC 4-2-3) (TRACS).





For DTCs 4-1-1, 4-1-3, 4-2-1 and 4-2-3, ohmmeter should read 6-8 Ohms.
For DTCs 4-1-2, 4-1-4, and 4-2-2, ohmmeter should read 3-5 Ohms.

If reading is OK:
- DTC was due to poor contact in hydraulic unit connector C/ED.

If reading is incorrect:
- Check resistance in hydraulic unit valves EG4. Check Resistance In Hydraulic Unit Valves [EG4]