Check quiescent current consumption - AR54.10-P-1030GX
MODEL 463.202 /222 /236 /237 /270 /271 /303 /306 /336 /340 /341 /346
| Checking | |||
| Risk of explosion caused by oxyhydrogen gas. Risk of poisoning and caustic burns caused by swallowing battery acid. Risk of injury caused by burns to skin and eyes from battery acid or when handling damaged lead-acid batteries | No fire, sparks, open flames or smoking. Wear acid-resistant gloves, clothing and glasses. Only pour battery acid into suitable and appropriately marked containers. |
AS54.10-Z-0001-01A | |
| Notes on battery | AH54.10-P-0001-01A | ||
| 1 | Activate service mode in Telematic Alarm Identification on Demand (emergency call system) (TELE AID) | AR82.95-P-0005-03GR | |
| Notes regarding the Tele-Aid emergency cal system | Model 463.243/244/245/250/309/322/ 323/332/333, Model 463.247/248/254/270 up to 1.04.07 |
AH82.95-P-0001-01GA | |
| 2 | Remove cup holder (A) | ||
| 3 | Remove battery box cover (B) | ||
| 4 | Prepare test without quiescent current retention unit | Digital multimeter | AR54.10-P-1030-02GX |
| Fig 4 | |||
| 5 | Remove CD-ROM from the COMAND operating, display and controller unit (A40/3), switch off COMAND operating, display and controller unit | ||
| 6 | Switch off all electrical consumers | ||
| Risk of injury to skin and eyes caused by handling hot or glowing objects. | Wear safety gloves, protective clothing and safety glasses, if necessary. | AS00.00-Z-0002-01A | |
| 7 | Check whether heater circulation pump is operating | ||
| 8 | Remove right cover below instrument panel | AR68.10-P-1520GM | |
| 9 | Testing quiescent current | If the limit value of the total quiescent current is exceeded: ↓ |
AR54.10-P-1030-03GX |
| Determine circuit with excessive quiescent current consumption. | AR54.10-P-1030-04GX | ||
| Fig 2 | |||
| Fig 3 | |||
Limit value of total quiescent current exceeded: ↓ |
Fig 4 | ||
| Determine fuse-protected components with increased quiescent current consumption | AR54.10-P-1030-05GX | ||
| Fig 2 | |||
| Fig 3 | |||
Limit value of total quiescent current exceeded: ↓ |
Fig 4 | ||
| Determine non-fuse protected components with increased quiescent current consumption. |
AR54.10-P-1030-06GX | ||
| 10 | To check, re-test quiescent current | AR54.10-P-1030-03GX | |
| 11 | Detach measuring instruments and testing units | ||
| 12 | Install all components which were removed to allow quiescent current test to be performed | ||
| 13 | Connect battery | ||
| 14 | Deactivate service mode in TELE AID | AR82.95-P-0005-03GR | |
| Notes regarding the Tele-Aid emergency cal system | Model 463.243/244/245/250/309/322/ 323/332/333, Model 463.247/248/254/270 up to 1.04.07 |
AH82.95-P-0001-01GA | |
| 15 | Install right-hand cover under dashboard | AR68.10-P-1520GM | |
| 16 | Switch on COMAND operating, display and controller unit, insert CD-ROM and switch off again | ||
| 17 | Install battery box cover (B) | ||
| 18 | Install cup holder (A) | ||
| 19 | Perform basic programming | AR00.19-P-0200P |