D5W Z heater upgrade
Galaxy
14
Heater activation
The electrical actuation of the heater takes place on
the standard wiring harness (1) to the heater under the
side skirt trim (interior of the vehicle) near the left rear
door.
- Cut the insulation on the wiring harness (1) as
shown in the figure
IMPORTANT
The cable colour may be either black/red or black/blue
depending on the vehicle’s equipment!
The electrical activation is made:
1. On the black/red or black/blue cable (1, 2) on the
standard blade-type fuse F3 to plug connector C311,
PIN 7.
NOTE
The vehicle’s C311 plug connector is on the underfloor
in front of the heater!
2. On the black cable (1, 2) from exterior temperature
switch N289 to plug connector C311, PIN 6.
Make the connections using the supplied butt
connectors as shown in the figure and in the circuit
diagram in Figure 3 or 4 (crimp and shrink).
- Cut the black and red or black and blue cable (1, 4)
and the black cable (2, 3) as shown in the figure
- Route the wiring harness with diode group (5) to the
isolation point
- Check and mark the flow direction of the diode group
(5) as shown in the circuit diagram in Figure 3 or 4
1
21
2
1
22
2
1
23
3
2
1
4
5
24