Vario roof (VR) diagnosis, functional test, actual values - AD77.50-P-3001A
MODEL 170
| Vario roof (VD) diagnosis, previous knowledge | AD77.50-P-2000A | |||
| Gong in instrument cluster can be actuated via HHT | ||||
| a | Fuses OK | |||
| b | Battery voltage > 11 V | |||
| c | Connect up Hand-Held Tester according to connection diagram | AD00.00-P-2000-03A | ||
| Performance test | ||||
| Test procedure/ A scope | Operation/requirement | Specified value | Possible cause/remedy | |
| 1 | 01 | Ignition position 1 | AD77.50-P-6000-03A | |
| Terminal 15R | ON | ON | ||
| OFF | OFF | |||
| 2 | 02 | Ignition position 2 | AD77.50-P-6000-04A | |
| Terminal 15 | ON | ON | ||
| OFF | OFF | |||
| 3 | 03 | < 10 V | YES | AD77.50-P-6000-01A |
| Undervoltage | > 10 V | NO | AD77.50-P-6000-02A | |
| AD77.50-P-6000-03A | ||||
| AD77.50-P-6000-04A | ||||
| AD77.50-P-6000-05A | ||||
| 4 | 04 | > 15.5 V | YES | AD77.50-P-6000-01A |
| Overvoltage | < 15.5 V | NO | AD77.50-P-6000-02A | |
| AD77.50-P-6000-03A | ||||
| AD77.50-P-6000-04A | ||||
| AD77.50-P-6000-05A | ||||
| 5 | 17 | Vehicle stationary | 0 km/h | AD77.50-P-6000-35A |
| Front left speed signal from traction system control module (N47) | Vehicle moving > 5 km/h | > 5 km/h | ||
| 6 | 18 | Vehicle stationary | 0 km/h | AD77.50-P-6000-34A |
| Status of front left speed signal from traction system control module (N47) | Vehicle moving > 5 km/h | > 5 km/h | ||
| 7 | 21 | < 95 °C | √ | AD77.50-P-6000-08A |
| Temperature of hydraulic unit (A7/5) | > 95 °C | F | ||
| 8 | 22 | Switch S84 pressed at rear not pressed pressed at front | AD77.50-P-6000-16A | |
| Vario roof switch (S84) | OPEN O CLOSE |
AD77.50-P-6000-17A | ||
| 9 | 23 | Vario roof switch (S84) pressed not pressed | AD77.50-P-6000-16A | |
| Indicator lamp for vario roof switch (S84) | ON OFF |
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| 10 | 24 | Ignition: On | AD77.50-P-6000-27A | |
| Energizing of left rear power window motor (M10/5) | Vario roof closed Vario roof switch (S84) pressed at rear not pressed pressed at front |
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| OPEN O CLOSE |
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| 11 | 25 | Ignition: On | AD77.50-P-6000-29A | |
| Energizing of right rear power window motor (M10/6) | Vario roof closed Vario roof switch (S84) pressed at rear not pressed pressed at front |
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| OPEN O CLOSE |
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| 12 | 26 | Ignition: On | AD77.50-P-6000-07A | |
| Energizing of relay for hydraulic unit (A7/5k1) | Vario roof closed Move vario roof switch (S84) to rear forward |
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| ON OFF |
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| 13 | 27 | Ignition: On | AD77.50-P-6000-31A | |
| Energizing of vario roof solenoid valve (A7/5y1) | Vario roof closed Move vario roof switch (S84) to rear forward |
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| ON OFF |
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| 14 | 28 | Ignition: On | AD77.50-P-6000-32A | |
| Energizing of trunk lid cylinder (A7/5y2) | Vario roof closed Move vario roof switch (S84) to rear forward |
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| ON OFF |
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| 15 | 29 | Trunk partition lock release | AD77.50-P-6000-14A | |
| Trunk partition "closed" limit switch (S69/10) | CLOSED OPEN |
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| 16 | 30 | Trunk lid open | OPEN | AD77.50-P-6000-15A |
| Trunk lid rotary tumbler/trunk lamp toggle switch (S69/12) | Trunk lid closed | CLOSED | ||
| 17 | 31 | Move vario roof switch (S84) to rear | AD77.50-P-6000-09A | |
| Vario roof "locked" limit switch (left or right rotary tumbler) (S69/3 or S69/2) | Vario roof open Move vario roof switch (S84) forward |
OPEN | ||
| Vario roof closed | CLOSED | |||
| 18 | 32 | Move vario roof switch (S84) to rear | AD77.50-P-6000-14A | |
| Vario roof "closed" limit switch (right lug) (S69/1) | Vario roof open Move vario roof switch (S84) forward |
OPEN | ||
| Vario roof closed | CLOSED | |||
| 19 | 33 | Move vario roof switch (S84) to rear | AD77.50-P-6000-13A | |
| Left or right trunk lid "closed/locked" limit switch (S69/7 or S69/8) | Trunk lid open Move vario roof switch (S84) forward |
OPEN | ||
| Trunk lid closed and locked | CLOSED | |||
| 20 | 34 | Move vario roof switch (S84) to rear | AD77.50-P-6000-12A | |
| Trunk lid "open" limit switch (S69/9) | Trunk lid open Move vario roof switch (S84) forward |
OPEN | ||
| Trunk lid closed | CLOSED | |||
| 21 | 35 | Move vario roof switch (S84) to rear | AD77.50-P-6000-11A | |
| Vario roof "open/lowered" limit switch (S69/11) | Vario roof lowered Move vario roof switch (S84) forward |
OPEN | ||
| Vario roof closed | CLOSED | |||