Signal Too High

Signal too high

Checking the component and wiring




- Ignition off.

For diagnostic trouble code (DTC) SUM-0112, front left solenoid:
- Check the power supply cable between suspension module (SUM) terminal #A6 and solenoid connector terminal #1. Check for a short-circuit to supply voltage
- Check the signal cable between suspension module (SUM) #A7 and solenoid terminal #2. Check for a short-circuit to supply voltage.

For diagnostic trouble code (DTC) SUM-0122, front right solenoid:
- Check the power supply cable between suspension module (SUM) terminal #A9 and solenoid connector terminal #1. Check for a short-circuit to supply voltage
- Check the signal cable between suspension module (SUM) #A8 and solenoid terminal #2. Check for a short-circuit to supply voltage.

For diagnostic trouble code (DTC) SUM-0132, rear left solenoid:
- Check the power supply cable between suspension module (SUM) terminal #A2 and solenoid connector terminal #1. Check for a short-circuit to supply voltage
- Check the signal cable between suspension module (SUM) #A1 and solenoid terminal #2. Check for a short-circuit to supply voltage.

For diagnostic trouble code (DTC) SUM-0142, rear right solenoid:
- Check the power supply cable between suspension module (SUM) terminal #A5 and solenoid connector terminal #1. Check for a short-circuit to supply voltage
- Check the signal cable between suspension module (SUM) #A4 and solenoid terminal #2. Check for a short-circuit to supply voltage.
Remedy as necessary.

Other information:
- Component specifications [1][2]Specifications
- Connecting the breakout box Connecting the Breakout Box, Suspension Module (SUM)
- Signal specification Signal Specification, Suspension Module (SUM)
- Shock absorber front, replacing, M58, M66 AWD, AW50/51 AWD Shock Absorber Front, Replacing
- 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 the component and wiring

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