P31.19-2869-09
1 | Crossmember | 20.3 | Grommet | 20.5 | Grommet | ||
20 | Trailer hitch wiring harness | 20.4 | Cap | A63/2 | Fully electric trailer hitch swivel unit |
20.6 | Black 2-pin coupling |
20.7 | Black 5-pin connector |
P31.19-2870-11
20 | Trailer hitch wiring harness |
20.1 | Black 22-pin coupling |
N28/1 | Trailer recognition control unit |
X58/33 | Vehicle interior/trailer hitch electrical connector |
P31.19-3010-06
Warning | Risk of injury caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof. | No parts of the body or limbs should be within the operating area when the components are moving. | |
Danger | Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) | Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. | |
Topical note | General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system | ||
Topical note | Information on preventing damage to electronic components due to electrostatic discharge | ||
Notes on HANDS-FREE ACCESS | Model 253.3/9 | ||
| Remove/install | ||
1 | Remove rear bumper | ||
2 | Remove socket housing for trailer hitch | ||
3 | Fold load compartment well trim to one side | ||
4 | Disconnect black 22-pin connector (20.1) at trailer recognition control unit (N28/1) | ||
5 | Disconnect vehicle interior/trailer hitch electrical connector (X58/33) | ||
6 | Detach trailer hitch wiring harness (20) from crossmember (1) | ||
7 | Detach grommet (20.3) from rear center section | ||
8 | Guide trailer hitch wiring harness (20) and grommet (20.3) through opening in rear center section to outside | ||
9 | Turn cap (20.4) in counterclockwise direction | The cap (20.4) is locked by means of a quick-release coupling (arrow). | |
10 | Detach grommet (20.5) from cap (20.4) | ||
11 | Push cap (20.4) toward trailer hitch wiring harness (20) | ||
12 | Disconnect black 2-pin connector (20.6) | ||
13 | Disconnect black 5-pin connector (20.7) | ||
14 | Remove trailer hitch wiring harness (20) | ||
15 | Install in the reverse order | ||
| Check | ||
16 | Perform function test on ball neck and on light signals at trailer socket | ||
|
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