Signal Too Low/Signal Missing

Signal too low/Signal missing

Checking components and wiring

Caution! Do not touch the terminal pins in the Parking Assistance Module (PAM). There is a risk of static discharge which could damage the control module.








- Ignition off.
- Disconnect the connector from parking sensor 6 (inner left front)
- Disconnect connector B from the parking assistance module (PAM).
Check the connectors for the parking sensor and the Parking Assistance Module (PAM). Check for damage to pins and connections. Also check the other connectors, which connect the cables between the Parking Assistance Module (PAM) and the parking sensor.
Remedy as necessary.
Check the signal cable between the parking assistance module (PAM) and the parking sensor's connector for a short-circuit to ground and open circuit.
Check the cable between:
- Parking assistance module (PAM) terminal #B7 and parking sensor connector terminal #2.
Remedy as necessary.
Check the voltage supply cable between the parking assistance module (PAM) and the parking sensor connector for a short-circuit to ground and open circuit.
Check the cable between:
- Parking assistance module (PAM) terminal #B2 and parking sensor connector terminal #1.
Remedy as necessary.
If no fault was detected, replace the parking sensor.

Other information
- Connecting the breakout box Connecting the Breakout Box, Parking Assistance Module (PAM)
- Signal specification, R.H.D Signal Specification, Parking Assistance Module (PAM)
- For information about terminal numbers and cable routing, see signal description and corresponding wiring diagram.
- For accessing/replacing the front parking assistance sensors, see Installation instructions, Accessories.
- Parking assistance module (PAM), replacing Service and Repair





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.




- Ignition off. Wait at least 10 seconds.
- Reinstall the connectors, components etc.
- Ignition on Wait at least 10 seconds.
- Read off the diagnostic trouble codes (DTCs) by clicking on the VCT2000 symbol.
If the fault is intermittent, the fault has been remedied.





Is the fault intermittent?

Yes - Troubleshooting procedure complete

No - 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 - Exit Fault-Tracing

No - Attempt New Test

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Attempt New Test - Checking components and wiring

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