Installation; Remote Switches; Description; Operation - Dodge dakota 2002 Service Manual

8A - 10 AUDIO
RADIO NOISE SUPPRESSION GROUND STRAP (Continued)
Fig. 12 ENGINE GROUND STRAP - 5.9L (8.0L
SIMILAR)
1 - GROUND STRAP
2 - MOUNTING BOLTS

INSTALLATION

BED TO CAB
(1) Install the ground strap and retaining bolts.
Tighten to 5 N·m (45 in. lbs.).
(2) Connect the battery negative cable.
ENGINE TO HEAT SHIELD
(1) Install the retaining nut and ground strap to
the plenum. Tighten to 8 N·m (70 in. lbs.).
(2) Install the retaining bolt and ground strap to
the engine cylinder heads. Tighten to 12 N·m (106 in.
lbs.).
(3) Connect the battery negative cable.

REMOTE SWITCHES

DESCRIPTION

A remote radio control switch option is available on
some models. Two rocker-type switches are mounted
on the back (instrument panel side) of the steering
wheel spokes (Fig. 13). The switch on the left spoke
is the seek switch and has seek up, seek down, and
preset station advance functions. The switch on the
right spoke is the volume control switch and has vol-
ume up, and volume down functions. The switch on
the right spoke also includes a "mode" control that
allows the driver to sequentially select AM radio, FM
radio, cassette player, CD player or CD changer (if
equipped).
Fig. 13 Remote Radio Switch Operational View
1 - PRESET SEEK
2 - SEEK UP
3 - VOLUME UP
4 - MODE
5 - VOLUME DOWN
6 - SEEK DOWN

OPERATION

The six switches in the two remote radio switch
units are normally
momentary switches that are hard wired to the Inte-
grated Power Module (IPM) through the clockspring.
The IPM sends a five volt reference signal to both
switch units on one circuit, and senses the status of
all of the switches by reading the voltage drop on a
second circuit.
When the IPM senses an input (voltage drop) from
any one of the remote radio switches, it sends the
proper switch status messages on the Programmable
Communication Interface (PCI) data bus network to
the radio receiver. The electronic circuitry within the
radio receiver is programmed to respond to these
remote radio switch status messages by adjusting the
radio settings as requested. For diagnosis of the IPM
or the PCI data bus, the use of a DRB III scan tool
and the proper Diagnostic Procedures manual are
recommended.
For more information on the features and control
functions for each of the remote radio switches, refer
to the owner's manual.
open, resistor multiplexed
DR