AN43.40-W-1001-02PR | Install electrical wiring harness for permanent magnet retarder into cab | ||
Danger! | Risk of death caused by working on permanent magnet retarder for groups of persons with implants. Risk of injury caused by burns that may occur due to contact with the hot rotor. | For persons with implants, a minimum distance of 30 cm between the permanent magnet retarder and the body parts of the affected person is to be maintained as a safe distance from the permanent magnet retarder. Do not touch hot or rotating parts. |
Mounting wedge
110 589 03 59 00
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Connection scheme
A7 Base module (GM)
A22 Parameterizable special module (PSM) control unit
F8-A24 Central locking fuse, tml. 15 (fuse holder A1)
K1-A25 Relay, all-wheel drive neutral/Allison neutral/parking brake/PMR brake pedal (relay holder A31)
K9-A25 Relay, lock shutoff/PMR request (relay holder A31)
K10-A25 Relay, all-wheel drive off-road gear/Allison neutral/forced neutral/PMR ABS intervention (relay holder A31)
S28 Hazard warning system button
S2s2 Retarder switch
S201 Brake pedal PMR deactivation switch
XB.31.R Right ground weld
XM.31 Motor ground point
Y159 PMR solenoid valve
X2.1 Cab-chassis connector
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Overview of electrical wiring harness
1 Electrical wiring harness (cab permanent magnet retarder)
A7 X9 Connector (base module connector)
A Relay holder (A31)
B Fuse holder (A1)
C Connector (switch for permanent magnet retarder deactivation of brake pedal (S201))
D Connector for operating lever for engine brake/permanent brake
A22 X4 Connector (Connector for parameterizable special module (PSM) control unit)
X2.1 Cab-chassis connector
XB.31.R Right ground weld
Depending on the vehicle equipment various fuse holders (A1) (B), relay holders (A31) (A) or connector housings for individual connectors, e.g. (A7 X9) may already be installed in the vehicle. Where this is the case they have to be detached from the electrical wiring harness (1) (cab permanent magnet retarder) and the electrical lines plugged into the existing relay holder (A31) (A), fuse holder (A1) (B) or the connector housing for the individual connectors, e.g. (A7 X9) as per the connection diagram.
In the event that the free slots are still available on the holder (8), it is then possible to augment the existing relay holder (A31) (A), fuse holder (A1) (B) by installing an additional relay holder (A31) (A), fuse holder (A1) (B).
Before inserting the electrical lines into the connector housing they have to be released first and then locked again.
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1 Open maintenance flap (2).
2 Remove trim grille (3).
3 Remove air intake pipe (4).
4 Remove cover (5).
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5 Pry out switch unit (6) using assembly wedge.
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6 Remove bolts (7).
7 Fold base module (GM) (A7) downwards.
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8 Insert relay holder (A31) (A) into holder strip (8).
9 Route electrical wiring harness (1) along the existing electrical lines and fix in place using cable tie.
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10 Insert relay (9, 10, 11) into relay holder (A31) (A).
If the electrical lines and the relay are connected to/used on the vehicle in a manner other than described in the connection diagram, then this must be documented on the overview of the assignment plan.
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11 Remove fuse holder (A1) (B).
Only if the fuse holder (A1) (B) installed in the vehicle is used.
12 Route electrical lines (12, 13) along the existing electrical lines and fix in place using cable tie.
13 Install electrical line BK (12) into Pin 15 of fuse holder (A1) (B).
14 Install electrical line BK/WH (13) into Pin 16 of fuse holder (A1) (B).
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15 Insert fuse 10 A (14) into slot F8 of the fuse holder (A1) (B).
16 Insert fuse holder (A1) (B) into holder strip (8).
If the vehicle's slot for the central locking fuse, terminal 15 (fuse holder A1) (F8-A24) is occupied by the fuse for the central locking, then the electrical lines (12, 13) can be double-crimped with the existing electrical lines of the central locking fuse.
Or a free position for the permanent magnet retarder fuse on the fuse holder (A1) (B) can be used. This must be documented on the overview of the assignment plan.
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17 Route electrical line BK (15) along the existing electrical lines and fix in place using cable tie.
18 Detach connector (A7 X9) from base module (GM) (A7).
19 Insert electrical line BK (15) into Pin 13 of connector (A7 X9).
20 Insert connector (A7 X9) into base module (GM) (A7).
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21 Route electrical lines (16, 17) along the existing electrical lines and fix in place using cable tie.
22 Detach plug (A22 X4) to parameterizable special module (PSM) control unit (A22).
23 Insert electrical line YE/BU (16) into Pin 9 of connector (A22 X4).
24 Insert electrical line GN/BN (17) into Pin 10 of connector (A22 X4).
25 Insert plug (A22 X4) into parameterizable special module (PSM) control unit (A22).
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26 Detach cab chassis connector (X2.1) from connector plate (18) on outside.
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27 Remove cable tie (19).
28 Route electrical line (20) along the existing electrical lines and fix in place using cable tie.
29 Detach counterpart of cab chassis connector (X2.1) from connector plate (18) on inside.
30 Insert electrical line RD/YE (20) into Pin 3 of cab chassis connector housing (X2.1).
31 Insert cab chassis connector (X2.1) into connector plate (18) on inside.
32 Fit cable ties (19).
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33 Route ground lines (21) along the existing electrical lines and fix in place using cable tie.
34 Unscrew nut (22).
35 Fasten ground lines (21) with nut (22) to right ground weld (XB.31.R).
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36 Route electrical line (23) along the existing electrical lines and fix in place using cable tie.
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37 Remove cover (24).
38 Insert new switch for PMR deactivation of brake pedal (S201) into switch unit (6).
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39 Detach connector housing (25) from hazard warning system button (S28).
40 Remove electrical line GN/YE (26) from Pin 58 of connector housing (25).
41 Cut off connector (27) from electrical line (26).
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42 Cut electrical line (28) to length.
43 Strip both ends of the electrical lines (26, 28).
44 Join both ends of electrical lines (26, 28) to new connector (29).
45 Insert new connector (29) into Pin 58 of connector housing (25).
46 Plug connector housing (25) onto hazard warning system button (S28).
47 Plug connector (C) onto new switch for PMR deactivation of the brake pedal (S201).
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48 Route electrical lines (31, 32) along the existing electrical lines and fix in place using cable tie.
49 Detach connector for operating lever for engine brake/permanent brake (D) from bracket (33).
50 Insert electrical line BK/WH (31) into Pin 14 of connector for operating lever for engine brake/permanent brake (D).
51 Insert electrical line BK/GN (32) into Pin 4 of connector for operating lever for engine brake/permanent brake (D).
52 Insert connector for operating lever for engine brake/permanent brake (D) into bracket (33).
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53 Fold base module (GM) (A7) upwards.
54 Screw in screws/bolts (7) .
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55 Install switch unit (6).