Signal Too Low or Signal Missing

Signal too low or signal missing

Checking for permanent or intermittent faults




- Ignition on.
Press the switch for the power window to check the function of the power window mechanism.

Is the power window control operating correctly?

Yes - Intermittent fault

No - Checking the connectors

-------------------------------------------------

Checking the connectors




- Ignition off.
Check that the fuses are intact.
Check the control module and power window lift motor connectors. Check for contact resistance and oxidation.

Other information:
- For further information about the fuses and relays, see the Wiring Diagram
- Driver's door module / passenger door module (DDM/PDM), replacing Service and Repair
- Window lift mechanism front side door, replacing Service and Repair
- Checking the power supply and ground terminals Checking the Voltage/Ground Terminal, Driver Door Module (DDM)/Passenger Door Module (PDM)
- Checking wiring and terminals Checking Wiring and Terminals

Continue - Checking the cable

-------------------------------------------------

Checking the cable
Check the cable between control module connector terminal #B4 and power window lift motor connector terminal #3. Check for an open-circuit. Check for a short-circuit to ground.
Check the cable between control module connector terminal #B3 and power window lift motor connector terminal #6. Check for an open-circuit. Check for a short-circuit to ground.
Remedy as necessary.

Other information:
- Connecting the breakout box Connecting the Breakout Box
- Signal specification Signal Specification, Driver Door Module (DDM)/Passenger Door Module (PDM)
- Driver's door module / passenger door module (DDM/PDM), replacing Service and Repair
- Checking the power supply and ground terminals Checking the Voltage/Ground Terminal, Driver Door Module (DDM)/Passenger Door Module (PDM)
- Checking wiring and terminals Checking Wiring and Terminals





Was the cable OK?

Yes - Replacing the component

No - Verification

-------------------------------------------------

Replacing the component




Replace the window lift mechanism.
- Ignition on.
Move the window to its upper limit position using manual control.
Initialize the window.
During initialization, the window will automatically go down to its lowest position and then go back up again.

Other information
- Window lift mechanism front side door, replacing Service and Repair





Continue - Verification

-------------------------------------------------

Verification




Verification

Hint: After the repair it is necessary to check that the fault has been rectified.








- Ignition off.
- Connect the connectors, install the components, etc.
- Ignition on.
Check that window operates by raising/lowering window to its end stops.

Does window operate?

Yes - Troubleshooting procedure complete

No - Fault-tracing information

-------------------------------------------------

Intermittent fault
Check the connectors for the control module and power window lift motor. Check for contact resistance and oxidation. Check for loose connections.
Check the cable between control module connector terminal #B4 and power window lift motor connector terminal #3. Check for an intermittent open-circuit.
Check the cable between the control module connector terminal #3B and the power window lift motor connector terminal #6. Check for an intermittent open-circuit.

Other information:
- Connecting the breakout box Connecting the Breakout Box
- Signal specification Signal Specification, Driver Door Module (DDM)/Passenger Door Module (PDM)
- Driver's door module / passenger door module (DDM/PDM), replacing Service and Repair
- Window lift mechanism front side door, replacing Service and Repair
- Checking the power supply and ground terminals Checking the Voltage/Ground Terminal, Driver Door Module (DDM)/Passenger Door Module (PDM)
- Checking wiring and terminals Checking Wiring and Terminals





Continue - Fault-tracing information

-------------------------------------------------

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

------------------------

Attempt New Test - Checking for permanent or intermittent faults

-------------------------------------------------

Fault-tracing information




Information

Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Do you want to view the information again?

Yes - Attempt New Test

No - Exit Fault-Tracing

------------------------

Attempt New Test - Checking for permanent or intermittent faults

-------------------------------------------------