Checking Pump Motor [EL10]

Checking Pump Motor





- Ignition off.
- Disconnect combination relay 4-pin and 15-pin connector.
- Connect two temporary leads:
• between combination relay 15-pin connector terminal 2 and terminal 3 on 4-pin connector
• between terminal 15 and terminal 1 on 4-pin connector.

Pump motor should start up; maximum cut-in time should be approx. 20 seconds.

- Remove the two temporary leads.

If pump motor starts:
- Check combination relay EL11. Checking Combination Relay [EL11]

If pump motor does not start:
- Check leads between pump motor and combination relay 4-pin connector terminal 1 and 3 for open circuit as per HA2. Open Circuit [HA2]

- If leads are OK, try another hydraulic unit as per NE. Hydraulic unit, replacement. Service and Repair