Grand Cherokee 4WD V8-5.2L VIN Y (1998)
Body Control Module: Description and Operation
Chime System
CHIME SYSTEM
The chime system utilizes three modules. The Body Control Module (BCM), the Vehicle Information Center (VIC), Mechanical Instrument
Cluster (MIC), and the Powertrain Control Module (PCM) have the ability to request a chime. The chime is located in the BCM module. Each
module monitors circuits or systems and sends a CCD request for a chime from the BCM. The BCM is constantly monitoring the CCD bus for a
chime request message. If a MIC or VIC monitored system requires a chime to sound, the request for the chime will come from the MIC or VIC,
but the BCM will actually sound the chime.
The chime will sound for the following conditions:
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Check Engine Warning
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Check Gauges Warning
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Door ajar above critical speed
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Headlamp ON with ignition OFF and driver door open
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High Speed Warning - Gulf Coast Countries
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Hood Ajar
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Key in ignition with ignition OFF and driver door open
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Low Fuel Warning-less than 1/8 tank of fuel remaining
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Rear Lamp Failure
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Seatbelt warning
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Transmission Over Temp Turn signal on for more than 1.0 mile with no decrease in speed or TPS.
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Washer Fluid Low
