AD83.40-S-6001-01A | Voltage supply, testing electrical system TM |
| Scope of test | Measuring instrument/ Test connection | Operation/Requirement | Specified value | Possible cause/Remedy | ||
1.0 | Climate control pushbutton control unit (A20) Voltage supply terminal 31 |
| A20.2 |
15 | Ignition: OFF Connector 2 disconnected from A20 |
< 5 Ω | Cables Ground connection 1.1 |
1.1 | Climate control pushbutton control unit (A20) Voltage supply terminal 30 (not assigned with manual heating) |
15 | A20.2 |
1 | Ignition: OFF Connector 2 disconnected from A20 |
11 - 14 V | Cables Fuse F106/f12 1.2 |
1.2 | Climate control pushbutton control unit (A20) Voltage supply terminal 15 |
15 | A20.2 |
21 | Connector 2 disconnected from A20 Ignition: ON |
11 - 14 V | Cables Fuse F106/f16 1.3 |
1.3 | Climate control pushbutton control unit (A20) Voltage supply terminal D+ (assigned with manual heating only) |
15 | |
8 | Connector 2 disconnected from A20 Engine: RUNNING |
11 - 14 V | Cables 1.4 |
1.4 | Climate control pushbutton control unit (A20) Voltage supply terminal 58k |
15 | |
9 | Connector 2 disconnected from A20 Headlamp low beam turned on |
11 - 14 V | Cables Connection to J66 |