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HOMESERVICE MANUALSVOLVO1993850 L5-2.4L VIN 55 B5254SREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSABS CODES (ANTILOCK BRAKE SYSTEM CONTROL MODULE)DTC 4-4-3 [EL]PROCEDURESCHECKING PUMP MOTOR WITH IGNITION ON [EL3]
1993 Volvo 850 L5-2.4L VIN 55 B5254S

Checking Pump Motor With Ignition on [EL3]

1993 Volvo 850 L5-2.4L VIN 55 B5254SSECTION Checking Pump Motor With Ignition on [EL3]


Checking Pump Motor With Ignition On





- Ignition on.

Pump motor should not be on.

Check if pump motor is running continuously or cuts in soon after the ignition is switched on.

If pump motor does not cut in or run continuously:
- Check pump motor and rotation sensor EL4. Checking Pump Motor and Rotation Sensor [EL4]

If pump motor starts but then stops again:
- Check lead between combination relay 15-pin connector terminal 13 and control module #15 for short to ground as per HA3. Short Circuit to Ground [HA3]

If pump motor runs continuously:
- Check leads between combination relay 15-pin connector terminal 13 and 12 and control module #15 and #34 for short to ground as per HA3. Short Circuit to Ground [HA3]
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.