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Home >> Volvo >> 2000 >> S40 L4-1.9L Turbo VIN 25 B4204T2 >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> Manufacturer Code Charts >> ABS Codes (Antilock Brake System Control Module) >> ABS-443 >> Pump Motor. Electrical Or Mechanical Fault. Permanent Fault >> Electrical Or Mechanical Fault. Permanent Fault

Electrical Or Mechanical Fault. Permanent Fault






Electrical or mechanical fault. Permanent fault

Checking fuse no. 12 (50 A) in the engine compartment




- Ignition off.
Check that fuse no. 12 (50 A) in integrated relay / fuse box in the engine compartment is intact.









Is the fuse OK?

Yes - Checking voltage

No - Checking for a short-circuit

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Checking voltage




- Ignition off.
Connect a voltmeter between ground (0 Volts) and the rear socket on the fuse holder (windshield side) for fuse no. 12 (50 A) in the integrated relay / fuse box in the engine compartment.









The voltmeter should read approximately battery voltage.

OK - Connecting the breakout box
Checking the 30-supply to the control module

Not OK - Checking for an open-circuit

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Checking for a short-circuit
Check the cable between fuse no. 12 (50 A) and control module connector terminal: 17 for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault , Section 5 (50-59), Brakes, 1996-.
Replace fuse 12 (50 A).










Continue - Verification

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Connecting the breakout box





Connecting the breakout box
951 1426 31-pin adapter 951 1426 31-Pin Adapter 981 3190 Replaced by 9511428 981 3190 Replaced by 951 1428
Connecting the breakout box to the ABS control module





Is the breakout box connected to the ABS control module?

Yes - FAULT FOUND

No - Connecting the breakout box

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Connecting the breakout box








- Ignition off.
- Disconnect the ABS control module.
- Check the control module and the control module connector to ensure that:
The male and female terminals are undamaged and properly attached (cannot be pressed in).
The wiring for the female terminals are securely connected.
Check in particular those terminals that are relevant to the stored diagnostic trouble code (DTC) / symptoms.
Connect adapter 951 1426 31-pin adapter 951 1426 31-Pin Adapter to the control module connector (wiring side). Connect breakout box 981 3190 Replaced by 9511428 981 3190 Replaced by 951 1428 to the adapter.

Note! ABS control module terminals 1-40 correspond to terminals 1-40 on the breakout box.





Select Continue.

Continue - Checking the ground terminal

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Checking the ground terminal




- Ignition off.
- Switch of all power consuming components, such as the passenger compartment lighting and the radio.
Connect an ohmmeter between terminal 16 on the breakout box and the battery negative terminal.









The ohmmeter should read approximately 0 ohms.

OK - No Fault FoundFault-tracing information

Not OK - Checking for an open-circuit and contact resistance

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Checking for an open-circuit and contact resistance
Check ground terminal 31/2. Check the cable between ground terminal 31/2 and control module terminal 16 for:
an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
contact resistance according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
Check the ground lead between the battery and the bodywork for:
an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.
contact resistance according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault.













Select "Continue" when the fault has been remedied.

Continue - Verification
Verification

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Verification




Verification

Verification

Hint: Check after repair that the fault has been rectified.
Proceed as follows:




- Switch off the ignition.
- Switch off all power consuming components such as the courtesy lighting and the radio.








- Connect an ohmmeter between terminal 16 on the breakout box and the battery negative terminal.

The ohmmeter should read approximately 0ohms.

OK - VERIFIED

Not OK - VERIFICATION FAILED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
The fault should be diagnosed and remedied. Since this is not the case the fault-tracing process has failed.
Complete the fault-tracing for those fault or try again.

Do you want to terminate fault-tracing at this time?

Yes - FAULT-TRACING FAILED

No - Attempt New Test

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Attempt New Test - Connecting the breakout box

FAULT-TRACING FAILED - FAULT-TRACING FAILED

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FAULT FOUND - Checking the 30-supply to the control module

No Fault Found - Checking the 30-supply to the control module

FAULT-TRACING FAILED - Checking the 30-supply to the control module

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Checking the 30-supply to the control module








- Ignition off.
- Connect the breakout box. Check the ground plate according to Connecting the breakout box.
- Reconnect the control module.
Connect a voltmeter between terminals 19 (0 Volt) and 17 on the breakout box.









The voltmeter should read approximately battery voltage.

OK - Checking the ground terminal for the pump motor

Not OK - Checking for an open-circuit

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Checking for an open-circuit
Check the circuit before fuse no. 12 (50 A) for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault , Section 5 (50-59), Brakes, 1996-.
For information of the circuit before fuse no. 12 (50 A), see Service Manual Section 3 (39) Wiring diagrams.









Select "Continue" when the fault has been remedied.

Continue - Verification

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Checking the ground terminal for the pump motor




- Ignition off.
Connect an ohmmeter between the ground terminal for the pump motor and ground.

Hint: The pump motor has a separate ground lead. This ground lead is connected to the rear edge of the pump motor and the chassis below it.





The ohmmeter should read approximately 0 ohms.

OK - Testing the function of the ABS hydraulic modulator

Not OK - Checking for an open-circuit

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Checking for an open-circuit
Check the cable between control module connector terminal: 17 and fuse no. 12 (50 A) for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault , Section 5 (50-59), Brakes, 1996-.









Select "Continue" when the fault has been remedied.

Continue - Verification

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Testing the function of the ABS hydraulic modulator












- Ignition off.
- Reinstall the connectors, components etc.
Test drive the car at a speed above 6 km/h or 15 km/h. The control module will test the valves and pump motor at 6 km/h.
Stop the car. Do not switch off the ignition.
Connect VCT 2000.
Read off the diagnostic trouble code (DTC) status.









Is the status permanent?

Yes - Checking the control module

No - Checking for contact resistance and oxidation

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Checking for an open-circuit
Check the cable between the ground terminal for the pump motor and the chassis for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault , Section 5 (50-59), Brakes, 1996-.





Select "Continue" when the fault has been remedied.

Continue - Checking for contact resistance and oxidation

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Checking for contact resistance and oxidation
Check the ground terminal for the chassis for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault , Section 5 (50-59), Brakes, 1996-.





Select "Continue" when the fault has been remedied.

Continue - Verification

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Checking the control module












- Ignition off.
- Disconnect the control module.
- Remove the existing control module. Connect the new control module according to Replacing the ABS control module Replacing The ABS Control Module , Section 5 (50-59), Brakes, 1996-.
- Reinstall the connectors, components etc.
- Connect the control module
Test drive the car at a speed above 6 km/h or 15 km/h. The control module will test the valves and pump motor at 6 km/h.
Stop the car. Do not switch off the ignition.
Connect VCT 2000.
Read off the diagnostic trouble code (DTC) status.









Is the status intermittent?

Yes - Fault-tracing information

No - Replacing the component

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Checking for contact resistance and oxidation
- The cause of the diagnostic trouble code (DTC) was loose terminals in the control module connector.
Check the control module connector for contact resistance and oxidation. Remedy according to Checking wiring and terminals. Permanent fault Checking Wiring And Terminals. Permanent Fault , Section 5 (50-59), Brakes, 1996-.





Select "Continue" when the fault has been remedied.

Continue - Verification

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Fault-tracing information
- The old control module was faulty.

Continue - Verification

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Replacing the component
- The old control module was OK.
Try a new ABS hydraulic modulator according to Replacing the ABS hydraulic modulator and control module Replacing The ABS Hydraulic Modulator And Control Module , Section 5 (50-59), Brakes, 1996-.





Select "Continue" when the fault has been remedied.

Continue - Verification

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Verification




Verification

Hint: After carrying out the repair, check that the fault has been remedied as follows:




- Ignition off.
- Reinstall the connectors, components etc.
- Control module connected.
Test drive the car at a speed above 6 km/h or 15 km/h. The control module tests the valves and pump motor when speed exceeds 6 km/h or 15 km/h.
Stop the car. Do not switch off the ignition.
Connect VCT 2000.
Read off the diagnostic trouble code (DTC) status.









Is the status intermittent?

Yes - VERIFIED

No - VERIFICATION FAILEDPAPER

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - FAULT FOUND

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Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - FAULT-TRACING FAILED

No - Attempt New Test

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Attempt New Test - ???

FAULT-TRACING FAILED - FAULT-TRACING FAILED

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