Intrepid V6-215 3.5L (1995)
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windshield wiper / washer
Chime System
DESCRIPTION
The chime system is comprised of an audible chime located internal to the BCM, and is dependent on various inputs to the BCM to operate. These
inputs include key-in ignition switch, exterior lamps, seat belt switch, and speed warning (middle east vehicles only).
CIRCUIT OPERATION
Seat Belt Warning
The seat belt chime is used to indicate to the operator that the seat belt is not fastened when the ignition switch is in the RUN position. The seat
belt switch is normally CLOSED with the seat belt buckled. Circuit G10 is connected between the Body Control Module (BCM) and the switch.
Ground for the switch is provided on circuit Z1. The Z1 circuit terminates at the body ground located at the left kick panel.
Exterior Lamp-on Warning
The exterior lamp ON chime is used to indicate to the operator that the lamps are ON with the drivers door OPEN and the key removed from the
ignition. The Body Control Module (BCM) uses information from circuit L7 to determine if the lamps are ON, and circuit G75 for drivers door
ajar. The chime function will not operate when the headlamp delay feature is active.
Key-In Ignition Warning
The Key-In chime is used to indicate to the operator that the key is in the ignition with the driver's door OPEN. If the key is in the ignition, a
ground path is completed from the G26 circuit at the Body Control Module (BCM), through the CLOSED switch, to the Z1 circuit. The Z1 circuit
is the ground circuit and terminates at the body ground located at the left kick panel.
When the driver's door is open the normally OPEN door ajar switch CLOSES completing a path to ground on circuit G75. The BCM processes
this information and turns on the chime.
Circuit Operation
The Body Control Module (BCM) is used to supply the vehicles occupants with visual and audible information, control various vehicle functions, and
provide a centralized power distribution for the passenger compartment. To both provide and receive vehicle information the BCM is interfaced with the
CCD Bus.
There are two BCM's available on this vehicle, a base and a premium. The premium has all the functions of the base model with additional features.
Since the BCM handles many vehicle functions, for example Vehicle Theft Alarm (VTA), circuit descriptions for those systems are covered in their
appropriate group. See: Accessories and Optional Equipment/Antitheft and Alarm Systems
Power for the BCM is provided from three sources. One is the M1 circuit. This is the Ignition-Off Draw (IOD) circuit and is protected by a 10 Amp fuse
located in cavity 13 of the junction block. This circuit is HOT at all times
Power for this fuse is supplied by circuit A7. This circuit originates in the Power Distribution Center (PDC) and is protected by a 20 Amp fuse located in
cavity G.
Power is also supplied on circuit G5. This circuit is protected by a 5 Amp fuse located in cavity 14 of the junction block. Power for the fuse is supplied
by circuit A21 from the ignition switch. This circuit is HOT in the RUN position only
Power for the A21 circuit is supplied by circuit A1 from the PDC. The A1 circuit is protected by a 20 Amp fuse located in cavity A.
Circuit F11, which is HOT when the ignition switch is in the OFF, RUN, and START positions, supplies power to the BCM. This circuit is protected by
a 5 Amp fuse located in cavity 17 of the junction block.
Power for the fuse is supplied on circuit A81 from the ignition switch. Circuit A81 receives power from circuit A1, which originates in the PDC, and is
protected by a 20 Amp fuse located in cavity A.
Ground for the BCM is supplied by two circuits. They are the Z1 and Z2 circuits. Both of these grounds terminate at the Airbag Control Module (ACM)
bracket.
CCD Bus interface is accomplished on circuits D1 and D2. The D1 circuit is used for CCD (+) and the D2 for CCD (-).
A/C Switch Status/Evaporator Temperature Status
When the ignition is in the RUN position, the Body Control Module (BCM) monitors the evaporator temperature and the status of the A/C switch
(manual A/C only) or the current status of the ATC system. Based on this information, the BCM sends a CCD message to the powertrain control module
(PCM) indicating the A/C switch status and the evaporator temperature status.
Automatic Temperature Control (ATC)
