Part 2
Checking the power supply and ground terminals for the control module (Continued)
Verification
Hint: After carrying out the repair, check that the fault has been remedied.
- Ignition off.
- Reconnect connectors, reinstall components.
- Ignition on.
When the ignition is switched on the control module lights the ABS warning lamp. Check that the warning lamp goes out after approximately 2 seconds.
Note! The warning lamp will not go out if a fault has been stored in the control module.
Does the ABS warning lamp light and go out shortly afterwards?
Yes - VERIFIED
No - 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
------------------------
FAULT-TRACING FAILED - FAULT-TRACING FAILED
Attempt New Test - Checking the ground terminals
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DSTC
Checking the power supply and ground terminals for the control module
Connecting the breakout box
- Ignition off
- Expose the ABS control module.
- Disconnect the control module by pulling out the catch on the front edge of the connector (engine side). Pull straight out so that the catches release and the connector rises
- Check that the male and female terminals on the control module and the control module connector are intact, secure and cannot be pressed in. Check that the female terminal cables are securely connected to the terminals
- In particular, check the terminal pins relevant to the diagnostic trouble code (DTC) or symptom
- Connect adapter 951 1518 Adapter 951 1518 Adapter to the control module connector (wiring side). Connect breakout box 951 1428 Breakout box 951 1428 Breakout Box to the adapter.
Continue - Checking the ground terminals
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Checking the ground terminals
- Ignition off
- Control module disconnected.
- Switch off all equipment that takes power from the battery (for example, courtesy lighting, radio etc.).
Check the resistance between the battery negative terminal and breakout box terminal #15 and between the battery negative terminal and breakout box terminal #46.
ohms
The ohmmeter should read approximately 0 for all measurements.
OK - Checking the 15-supply to the control module
Not OK - Checking the ground terminals
------------------------
Checking the ground terminals
- Ignition off
- Control module disconnected.
Check the ground terminal 1/1 (battery negative terminal). Check for an open-circuit and contact resistance.
Check the cable between ground terminal 31/95 (left-hand wheel arch) and ABS control module terminals #15 and #44. Check for an open-circuit and contact resistance.
Return to the fault-tracing procedure where it was interrupted.
Remedy as necessary.
Other information:
- Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Continue - Checking the 15-supply to the control module
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Checking the 15-supply to the control module
- Control module disconnected.
- Ignition on.
Check the voltage between breakout box terminals #44 and #46 and breakout box terminals #15 and #44.
The voltmeter should read approximately battery voltage.
OK - Checking the 30-supply (valves) to the control module
Not OK - Checking fuses
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Checking fuses
Check that fuse 11/9 in the integrated relay / fusebox in the passenger compartment is intact.
Is fuse 11/9 intact?
Yes - Checking the voltage before the fuse
No - Checking for a short-circuit
------------------------
Checking for a short-circuit
Check the cable between ABS control module terminal #4 (#4) and fuse 11/9. Check for a short-circuit to ground.
Remedy as necessary.
Replace the fuse.
Other information:
- Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Select Continue when the fault has been remedied.
Continue - Verification
------------------------
Checking the voltage before the fuse
- Ignition on.
Check the voltage between the left socket (engine side) on the fuse holder for fuse 11/9 and ground.
The voltmeter should read approximately battery voltage.
OK - Checking for an open-circuit
Not OK - Checking for an open-circuit
------------------------
Checking for an open-circuit
Check the cable between ABS control module terminal #44 (#44) and fuse 11/9. Check for an open-circuit.
Remedy as necessary.
Other information:
- Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Select Continue when the fault has been remedied.
Continue - Verification
------------------------
Checking for an open-circuit
Check the cable between ignition switch terminal #15 and fuse 11/9 in the integrated relay/fusebox in the passenger compartment. Check for an open-circuit.
Other information:
- Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Select Continue when the fault has been remedied.
Continue - Verification
------------------------
Checking the 30-supply (valves) to the control module
- Ignition on.
Check the voltage between breakout box terminals #15 and #16 and breakout box terminals #16 and #46.
The voltmeter should read approximately battery voltage.
OK - Checking the 30-supply (pump motor) to the control module
Not OK - Checking fuses
------------------------
Checking fuses
Check that fuse 11/11 the integrated relay / fusebox in the engine compartment is intact.
Is the fuse intact?
Yes - Checking the voltage before the fuse
No - Checking for a short-circuit
------------------------
Checking for a short-circuit
Check the cable between ABS control module terminal #9 (#9) and fuse 11/11. Check for a short-circuit to ground.
Remedy as necessary.
Replace the fuse.
Other information:
- Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Select Continue when the fault has been remedied.
Continue - Verification
------------------------
Checking the voltage before the fuse
- Ignition on.
Check the voltage between the left socket (engine side) on the fuse holder for fuse 11/11 and ground.
The voltmeter should read approximately battery voltage.
OK - Checking for an open-circuit
Not OK - Checking for an open-circuit
------------------------
Checking for an open-circuit
Check the cable between ABS control module terminal #16 (#16) and fuse 11/11. Check for an open-circuit.
Remedy as necessary.
Other information:
- Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Select Continue when the fault has been remedied.
Continue - Verification
------------------------
Checking for an open-circuit
Check the cable between the battery positive terminal and fuse 11/11 for an open-circuit.
Other information:
- Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Select Continue when the fault has been remedied.
Continue - Verification
------------------------
Checking the 30-supply (pump motor) to the control module
- Ignition off.
Check the voltage between breakout box terminals #15 and #47.
The voltmeter should read approximately battery voltage.
OK - No Fault Found
Not OK - Checking fuses
------------------------
Checking fuses
Check that fuse 11/12 in the integrated relay / fusebox in the engine compartment is intact.
Is the fuse intact?
Yes - Checking the voltage before the fuse
No - Checking for a short-circuit
------------------------
Checking for a short-circuit
Check the cable between ABS control module terminal #47 (#47) and fuse 11/12. Check for a short-circuit to ground.
Remedy as necessary.
Replace fuse.
Other information:
- Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Select Continue when the fault has been remedied.
Continue - Verification
------------------------
Checking the voltage before the fuse
- Ignition on.
Check the voltage between the left socket (engine side) on the fuse holder for fuse 11/12 and ground.
The voltmeter should read approximately battery voltage.
OK - Checking for an open-circuit
Not OK - Checking for an open-circuit
------------------------
Checking for an open-circuit
Check the cable between ABS control module terminal #47 (#47) and fuse 11/12. Check for an open-circuit.
Remedy as necessary.
Other information:
- Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Select Continue when the fault has been remedied.
Continue - Verification
------------------------
Checking for an open-circuit
Check the cable between the battery positive terminal and fuse 12/11 for an open-circuit.
Remedy as necessary.
Other information:
- Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault
Select Continue when the fault has been remedied.
Continue - Verification
------------------------
Verification
Hint: After carrying out the repair, check that the fault has been remedied.
- Ignition off
- Reconnect the connectors, reinstall components etc.
- Ignition on.
The ABS warning lamp lights when the ignition is switched on.
Check that the warning lamp goes out after approximately 2 seconds.
Note! The warning lamp will not go out if a fault has been stored in the control module.
Does the warning lamp go out after 2seconds?
Yes - Fault Found
No - Fault-tracing information
------------------------
Fault-tracing information
Information
Attempt New Test - Checking the 15-supply to the control module
FAULT-TRACING FAILED - FAULT-TRACING FAILED
------------------------
FAULT FOUND - Fault Found
No Fault Found - No Fault Found
FAULT-TRACING FAILED - FAULT-TRACING FAILED
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