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LOCATION:    12.4 Mirror, Steering Column Adjustment, Heated Mirrors (MSC)  >   13 Diagnosis - Recalling Actual Values using HHT


Diagnosis - Recalling Actual Values using HHT

Preparation for Test:
1. Fuses F1-22, F4-3, F4-7 ok,
2. Connect the Hand-Held Tester (HHT) to X11/4, according to diagram, see section 0.


Erasing the Mirror, steering column adjustment, heated mirrors (MSC) DTC memory, will also erase the DTC memory for the Combination Control Module (N10-1) and Convenience Feature (CF).

Actual Value
Possible cause Test step/Remedy 1)
Circuit 15R, circuit 15,
Left/right front door switch (S17/3, S17/4)
23 2.0
D.M., Body and Accessories Volume 2.1,
5.2 >23> 5.0
, 6.0
Memory store button switch (S91s9), pressed D.M., Body and Accessories Volume 5, 15.3, >23 >18.0
Memory button 1 switch (S91s6), recall memory D.M., Body and Accessories Volume 5, 15.3, > 23 > 18.0
Memory button 2 switch (S91s7), recall memory D.M., Body and Accessories Volume 5, 15.3, > 23 > 18.0
Memory button 3 switch (S91s8), recall memory D.M., Body and Accessories Volume 5, 15.3, > 23 > 18.0
Outside rearview mirror-vertical adjustment (S21s6) 23 3.0, 4.0
Outside rearview mirror-horizontal adjustment (S21s7) 23 3.1, 4.1
Activation of vertical adjustment motor (M21/4m1, M21/5m1) by combination control module (N10-1) 23 5.0, 11.0
Activation of horizontal adjustment motor (M21/4m2, M21/5m2) by combination control module (N10-1) 23 6.0, 10.0
Potentiometer voltage supply for (M21/4m1, m2,M21/5m1, m2) 23 9.0, 14.0
Memory button 1 switch (S91s6), recall memory D.M., Body and Accessories Volume 5, 15.3, > 23 > 18.0
Store memory using memory button 2 switch (S91s7), with memory store button switch (S91s9) D.M., Body and Accessories Volume 5, 15.3, > 23 > 18.0
Recall memory, using memory button 2 switch (S91s7) D.M., Body and Accessories Volume 5, 15.3, >23 >18.0
Store memory, using memory button 3 switch (S91s8) with memory store button switch (S91s9) D.M., Body and Accessories Volume 5, 15.3, >23 >18.0
Recall memory, using memory button 3 switch (S91s8) D.M., Body and Accessories Volume 5, 15.3, >23 >18.0
Memory store button switch (S91s9), pressed D.M., Body and Accessories Volume 5, 15.3, >23 >18.0
Steering column up/down switch (S91s11) 23 17.1
Steering column in/out switch (S91s12) 23 17.0
Activation of tilt adjustment motor (M20/m2) (up/down ) by combination control
module (N10-1)
23 19.0
Activation of telescopic adjustment motor (M20/m1) (in/out) by combination control module (N10-1) 23 18.0
Tilt adjustment motor (M20m2), defective potentiometer or wiring -//- 23 19.1
Telescopic adjustment motor (M20m1), defective potentiometer or wiring -//- 23 18.1
Voltage supply for potentiometer (M20m1, M20m2) 23 18.1, 19.1
1) Observe Preparation for Test, see 22.