Fault In The Memory Position
Fault in the memory position
Checking memory button function
- Ignition off.
Read off the status of memory button 1 and MEM.
Press the programming button MEM while holding down memory button 1.
The status of MEM and memory button 1 should switch from OFF to ON respectively when the relevant button is pressed.
OK - Checking memory function 1
Not OK - Connecting the breakout box
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Checking memory function 1
Move the seat to a new position using the control buttons.
Try to move the seat to the position stored in memory position 1.
Does the seat move to memory position 1?
Yes - Fault-tracing information
No - Replacing the component
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Fault-tracing information
The diagnostic trouble code (DTC) was probably caused by no position being programmed into memory position 1.
Continue - FAULT FOUND
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Replacing the component
The diagnostic trouble code (DTC) has probably registered due to an internal fault in the control module.
Try a new control module according to Control module Control Module.
Continue - Verification
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Connecting the break-out box
981 3190 Replaced by 9511428 981 3190 Replaced by 951 1428 981 3194 Replaced by 9511495 981 3194 Replaced by 951 1495
Information
Connecting up the Test box
Is the test box connected to the control module?
Yes - CONNECTED
No - NOT CONNECTED
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NOT CONNECTED - Testing ground points
CONNECTED - FAULT FOUND
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Testing ground points
- Ignition OFF.
- Connect the break-out box 981 3190 Replaced by 9511428 981 3190 Replaced by 951 1428 using adapter 981 3194 Replaced by 9511495 981 3194 Replaced by 951 1495 on the 16-pin green connector (terminals 31-46).
Connect an ohmmeter between battery negative terminal and:
- terminal 36 on break-out box
- terminal 37 on break-out box
In both cases the ohmmeter should read 0 ohms.
OK - Calibrating ground terminals, continued
Not OK - Checking for an open-circuit
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Calibrating ground terminals, continued
- Ignition OFF.
Measure with an ohmmeter between the battery negative terminal and position A:3 on the 4-pin connector.
The ohmmeter should read approx. 0 ohms.
OK - FAULT FOUND
Not OK - Checking for an open-circuit, contact resistance and oxidation
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Checking for an open-circuit
Check lead between controller and control module connection D:6 or D:7 for break as per Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Signal Table for the break-out box connected to the 16-pin connector D, see Connector D Connector D.
Press "Continue" when the fault has been remedied.
Continue - FAULT FOUND
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Checking for an open-circuit, contact resistance and oxidation
Check lead between control module connection 31 and ground point for break as per Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault and contact resistance and oxidation in accordance with Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Signal Table for the break-out box connected to the 16-pin connector D, see Connector D Connector D.
Press "Continue" when the fault has been remedied.
Continue - FAULT FOUND
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FAULT FOUND - Checking memory buttons
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Checking memory buttons
- Ignition off.
- Breakout box connected.
Connect an ohmmeter between breakout box terminals 32 (memory button 1) and 36 (ground). Press memory button 1 and read off resistance.
Connect the ohmmeter between breakout box terminal 33 (MEM) and 36 (ground). Press MEM and read off resistance.
Resistance should be 0 ohms when the button is pressed.
OK - Checking contact resistance and oxidation
Not OK - Replacing the component
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Replacing the component
Remedy wiring or try a new control panel according to Control panel Control Panel.
Continue - Verification
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Checking contact resistance and oxidation
Check the 16-pin connector terminals D:2 and D:3 for contact resistance and oxidation and remedy according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
If the fault persists after verification, try a new control module according to Control module Control Module.
Continue - Verification
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Verification
Verification
Hint: After carrying out the repair, check that the fault has been remedied as follows.
- Ignition OFF.
- Connect up seat in car.
Program a seat position into memory 1.
Change seat position using the control buttons.
Activate stored memory position 1 to see if the seat moves to that position.
Does the seat move to memory position 1?
Yes - VERIFIED
No - VERIFICATION FAILED
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VERIFICATION FAILED - Fault-tracing information
VERIFIED - FAULT FOUND
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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 memory button function
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