D83.70-1199-06
Summary, warm water heater cable set
1 Auxiliary fuse holder, triple
2 Connecting cable for auxiliary fuse holder (circuit 15)
3 Line, br (ground)
4 8-pin water heater plug
5 Relay base (actuation of vehicle blower)
6 Line, red (circuit 15 timer)
7 Line, yellow (control line for timer)
8 Line, br (ground, timer)
9 Wire, blue/white (diagnosis)
10 Line, black/violet (vehicle blower)
11 Line, black (vehicle blower)
12 Line, 2.5 red (voltage supply to water heater)
13 Line 0.5 red (voltage supply to timer)
14 Line 4.0 red/white (voltage supply to vehicle blower)
15 Line black/white (inoperative)
Tie wires and leads to existing leads using cable straps when laying. Avoid chafing points, if necessary install chafe guard. Cut off or tie back excess wires and leads.
1 Connect 8-pin plug (4) of the cable set to the lead of the water heater.
2 Open the cable at the front end dash support above the battery.
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3 Guide the timer lead of the cable set with the red, yellow, brown, blue/white and black/white lines (69, 15) and blower actuation lead of the cable set with the black/violet and black lines (10, 11) through the open cable duct into the cab.
4 Route the blower actuation lead under the instrument panel to the installation location of the air conditioning control and operating unit.
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D83.70-1145-01
5 Connect the 4-pin plug (20) to the timer lead of the cable set and connect plug housing (21) to the plug housing (22) of the timer (23):
Insulate blue/white and black/white lines (9, 15) of the cable set and tie back.
Attach pin sockets to the red, yellow and brown lines (6, 7, 8) of the cable set.
Attach plug contacts to the red, yellow, brown and blue lines of the timer.
Insert wires into connector and connector housing in accordance with timer connection pin assignments.
Timer connection pin assignments
Plug-in position Wire
1 rt (red) (+ c. 30)
2 yellow (control line of timer/water heater)
3 br (brown) ()
4 bl (remote control, option)
The graphic shows the line entrance side of the plug and plug housing. Plug-in position 4 remains free and is intended for connecting the remote control option.
D83.70-1200-01
6 Connect plug and plug housing of timer and connector to existing lines or leads under the instrument panel.
7 For the connection to the auxiliary fuse holder (1) attach pin sockets to the red and red/white lines (12, 13, 14) of the cable set.
8 Insert the lines of the cable set and lines of the connecting cable (2) into the chambers of the auxiliary fuse holder (1).
D83.70-1201-01
9 Attach auxiliary fuse holder (1) and relay base (5) under the battery on the side wall of the front end.
Use the free holes in the side wall for attaching the auxiliary fuse holder and the relay base. If the specified installation area is occupied by other components, attach the auxiliary fuse holder and relay base above the battery on the engine compartment side wall.
10 Plug the relay for actuating the vehicle blower (24) into the relay base.
11 Insert fuses (25) into the auxiliary fuse holder:
Wire 2.5 red 20 A fuse
Wire 0.5 red 5 A fuse
Wire 4.0 red/white 25 A fuse
12 Fit cover of auxiliary fuse holder.
13 Attach connecting cable (2) of auxiliary fuse holder to the positive pole of the battery.
14 Connect brown (br) line (3) of cable set to a ground point in the area of the battery.