Current Too High

Current too high

Checking components and wiring




- Ignition off.
Check the resistance of the solenoids.
Check the connectors for the Suspension Module (SUM) and the solenoids. Check for oxidation.

For diagnostic trouble code (DTC) SUM-0117, front left solenoid:
- Check the signal cable between control module #A7 and solenoid terminal #2. Check for a short-circuit to supply voltage.

For diagnostic trouble code (DTC) SUM-0127, front right solenoid:
- Check the signal cable between control module terminal #A8 and solenoid terminal #2. Check for a short-circuit to supply voltage or to the power supply cable for the solenoid.

For diagnostic trouble code (DTC) SUM-0137, rear left solenoid:
- Check the signal cable between control module terminal #A1 and solenoid terminal #2. Check for a short-circuit to supply voltage or to the power supply cable for the solenoid.

For diagnostic trouble code (DTC) SUM-0147, rear right solenoid:
- Check the signal cable between control module terminal #A4 and solenoid terminal #2. Check for a short-circuit to supply voltage or to the power supply cable for the solenoid.

Hint: Click on the VCT2000 symbol to activate the power supply to the solenoids. This will make fault-tracing easier. Measure the current on the signal cable. The value must be approximately 0.5 A.

Remedy as necessary.

Other information:
- For information about component specifications, see Component specifications [1][2]Specifications
- To connect the breakout box, see Connecting the breakout box Connecting the Breakout Box, Suspension Module (SUM)
- For information about signals, see Signal specification Signal Specification, Suspension Module (SUM)
- To replace the front solenoid/shock absorber, see Shock absorber front, replacing, M58, M66 AWD, AW50/51 AWD Shock Absorber Front, Replacing
- To replace the rear solenoid/shock absorber, see Spring/shock absorber rear, replacing Spring/Shock Absorber Rear, Replacing
- Checking wiring and terminals Checking Wiring And Terminals.










Continue - Verification

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Verification




Verification

Verification

Warning! Always test drive cars under safe, controlled conditions. Follow the appropriate traffic and speed regulations.

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








- Ignition off
- Reinstall the connectors, components etc.
- Test drive the car. The driving mode must be changed during the test drive
- Ignition on
- Click on the VCT2000 symbol to read off the present value on the signal cable from the solenoids. The value must be approximately 0.5 A.









Is the value OK?

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 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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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking components and wiring

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