Malfunction of closing assist - AF72.29-P-6006A
MODEL 215, 220
MODIFICATION NOTES
| 17.12.01 | Replaces STIP 72.19-015 dated 14.12.2001 |
| Damage code | Cause | Remedy | |
|---|---|---|---|
| Door control unit 72 220 EZ (left front) 72 230 EZ (right front) 73 220 EZ (rear door) |
1 Delete fault memory of door control unit concerned. | ||
| Door lock: 72 111 73 (front door) 73 111 73 (rear door) |
The power closing function of the associated door will remain deactivated for as long as fault code B1602 in the door control unit is current and/or stored. | 2 Check power closing solenoid valve using DAS. |
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| Cause 1: | Procedure: | ||
| The fault B1602 will be stored in the door control unit if connector 8 (power closing valve) is disconnected from the left/right front or left/right rear door control unit although the door control unit is still being supplied with voltage (battery is connected and connector 1 for voltage supply of the door control unit is connected). | Check the door control unit using the DAS:
The actual value for the power closing solenoid valve is set to "OFF" if the door is open or completely closed. Close door to first detent. While the door is being pulled closed, the actual value changes to "ON" for approx. 2 seconds. |
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| If the actual values are OK and the power closing function is working properly, neither the door control unit nor the door lock should be replaced. The fault was in fault code B1602 stored in the door control unit (see Causes). |
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| Cause 2: | |||
| The fault B1602 will be stored in the door control unit if, when the door control unit is replaced, first the voltage supply (connector 1) and then connector 8 (power closing valve) is connected to the left/right front or left/right rear door control unit. | 3 Use DAS to check that power closing is functioning. Open the vehicle using the DAS:
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| Carry out function test step by step in the way described. |