Grand Cherokee 2WD Limited V8-4.7L (2002)
speed message received from the Powertrain Control Module (PCM) indicates that the vehicle speed is above 120 km/h (75 mph). The
chimes will continue to sound until the vehicle speed is below 120 km/h (75 mph). This feature is only enabled on a BCM that has been
programmed with a Middle East Gulf Coast Country (GCC) country code.
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Tactile Beep Support - The BCM chime tone generator will generate a single beep each time a PCI data bus tactile beep request message is
received from the Electronic Vehicle Information Center (EVIC) or the Sentry Key Immobilizer Module (SKIM). This beep provides an
audible confirmation that an EVIC button was completely depressed, or that the optional Sentry Key Immobilizer System (SKIS) is in the
"Customer Learn" mode.
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Warning Beep Support - The BCM chime tone generator will generate a short series of beeps each time a PCI data bus warning beep request
message is received from the EVIC or the Electro-Mechanical Instrument Cluster (EMIC). These beeps provide an audible alert to the vehicle
operator, of certain visual warning indications displayed by the EVIC and/or the EMIC.
The BCM provides chime service for all available features in the chime warning system. The BCM relies upon message inputs received from other
modules over the PCI data bus network to provide chime service for all of the remaining chime warning system features.
The internal programming of the BCM determines the priority of each chime tone request input that is received, as well as the rate and duration of
each chime tone that is to be generated.
CHIME SYSTEM
The chime system responds to requests from five modules: the Body Control Module (BCM), Electronic Vehicle Information Center (EVIC),
Mechanical Instrument Cluster (MIC), Sentry Key Immobilizer Module (SKIM) and the Powertrain Control Module (PCM). Each module
monitors its related systems and, via the PCI bus, requests the BCM to sound its internal chime as needed.
The chime will sound for the following conditions:
MIC Requested Chime Messages
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Airbag
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Check Gauges: Charging Voltage Low
Coolant Temp High
Low Oil Pressure
Charging Voltage High
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Low Fuel
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ABS
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Low Battery Voltage
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Water in Fuel (Diesel)
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Low Coolant level (Diesel)
BCM Initiated Chime Messages
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Headlamp ON with ignition OFF and driver door open
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Key in ignition with ignition OFF and driver door open
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Seat Belt Warning
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Overspeed Warning (Gulf Coast Countries Only)
EVIC Chime Requested Messages
When the following messages are displayed the EVIC will send a chime request to the BCM. The BCM will respond with a series of chimes.
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Turn signal ON for more than 1.0 mile
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Service reminder
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Coolant level low
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Washer fluid low
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Tire Pressure Monitoring System alert messages (if equipped)
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Door or liftgate ajar (when critical speed is reached)**
**CRITICAL SPEED CHART
Sentry Key Immobilizer System
The Sentry Key Immobilizer System (SKIS) also uses tactile beep support from the chime warning system. The Sentry Key Immobilizer Module
