Test point

Pot. mirror left horizontal This fault is stored in the following cases:

to the pot. left rearview mirror.

2. The potentiometer is faulty.

3. The control module is faulty. Elimination:

Replace support with gear unit.

Actuate switch for memory seat adjustment.

The text in the fault memory changes from present to not present if the cause of the fault has really been eliminated.

If the fault is no longer present, erase the fault memory.

If the fault is still present, there is a fault in the wire.

For a fault in the wire, proceed as described below:

Disconnect plug at support with gear unit.

Disconnect mirror plug from the control module.

Use an ohmmeter to check for continuity on the support plug

Use an ohmmeter to check for open circuit on the support plug Pin 3 and the mirror plug on the control module Pin 5

If no fault is detected in the wire but the fault is still present,

72 98 Diagnosis/troubleshooting, seat memory (System S 01)

Fault. Fault code

Possible causes, elimination, notes

Test point 24

Pot. mirror left vertical open circuit Fault code 26

This fault is stored in the following cases:

1. There is an open circuit in the wire to the pot. left rearview mirror.

2. The potentiometer is faulty.

3. The control module is faulty. Elimination:

Replace support with gear unit.

Actuate switch for memory seat adjustment.

The text in the fault memory changes from present to not present if the cause of the fault has really been eliminated.

If the fault is no longer present, erase the fault memory.

If the fault is still present, there is a fault in the wire.

For a fault in the wire, proceed as described below:

Disconnect mirror plug from the control module.

Disconnect plug at support with gear unit.

Use an ohmmeter to check for open circuit on the support plug Pin 5 and the mirror plug on the control module Pin 11

Use an ohmmeter to check for open circuit on the support plug Pin 7 and the mirror plug on the control module Pin 4.

Use an ohmmeter to check for continuity on the support plug

If no fault is detected in the wire, replace the control module.

72 98 Diagnosis/troubleshooting, seat memory (System S 01)

Printed in Germany - 27, 1999

98672D1

Fault, Fault code

Possible causes, elimination, notes

Test point 25

Pot. mirror left vertical short circuit Fault code 27

This fault is stored in the following cases:

1. There is a short circuit in the wire to the pot left rearview mirror.

2. The potentiometer is faulty.

3. The control module is faulty. Elimination:

Replace support with gear unit.

Actuate switch for memory seat adjustment.

The text in the fault memory changes from present to not present if the cause of the fault has really been eliminated.

If the fault is no longer present, erase the fault memory.

If the fault is still present, there is a fault in the wire.

For a fault in the wire, proceed as described below:

Disconnect plug at support with gear unit.

Disconnect mirror plug from the control module.

Use an ohmmeter to check for continuity on the support plug

Use an ohmmeter to check for open circuit on the support plug Pin 3 and the mirror plug on the control module Pin 5

If no fault is detected in the wire but the fault is still present,

72 98 Diagnosis/troubleshooting, seat memory (System S 01)

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