Grand Cherokee 2WD V8-4.7L VIN N (2000)
Stored Codes
A stored code indicates that there was an active code present at some time. The reason for the active code was corrected and the code was changed
to the stored code.
If the reason for the code was corrected, the AZC head will erase the code after 72 keys cycles. The code may also be erased from the head using
the DRBIII (R).
If no obvious problems are found, read active codes on the DRBIII (R) while wiggling the harness and connectors. Recheck for codes periodically
as you work through the system. This procedure may uncover a malfunction that is difficult to locate.
BODY CONTROL MODULE
The Body Control Module (BCM) supplies vehicle occupants with visual and audible information and controls various vehicle functions. To
provide and receive information, the module is interfaced to the vehicle's serial bus communication network (Programmable Communication
Interface or PCI bus). This network consists of the Powertrain Control Module (PCM), the Memory/heated Seat Module (MHSM, MSM or
HSM), the Sentry Key Immobilizer Module (SKIM), the Transmission Control Module (TCM), the Electro/mechanical Instrument Cluster
(MIC), the Driver Door Module (DDM), the Passenger Door Module (PDM), the Airbag Control Module (ACM), the Antilock Brake Module
(ABS), the optional Electronic Vehicle Information Center (EVIC), the optional PCI radio and the optional Automatic Zone Control Module
(AZC). The BCM is operational when battery power is supplied to the module, ignition switch power is needed for ignition switched functions.
The BCM provides the following new features:
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Full control of all exterior and interior lamps, including these features:
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A Battery Saver automatically turns OFF all exterior and interior lamps within 8 minutes after the ignition is turned OFF if they are not
turned OFF by the driver. This includes the front and rear reading/courtesy lamps and the cargo area dome lamp, even if they are turned
ON manually.
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Theater-style interior lighting dims gradually when the doors are closed.
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Interior courtesy lamp operation may be "defeated" using the dimmer control ring on the left stalk switch.
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Instrument panel light intensity may be maximized for daytime visibility with the head lamps or parking lights by using the dimmer control
ring on the left stalk switch.
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A refined Accessary/Sunroof Delay allows operation of the sunroof as well as the power windows. In addition, the time has been extended
from 30 to 45 seconds after the ignition is switched OFF for added convenience. As in the past, the delay terminates (window and/or sunroof
ceases) if a door is opened, which helps protect occupants from possible injury.
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Beep tones for warnings and programming actions associated with the Sentry Key Immobilizer system and the EVIC.
The BCM also provides the following features:
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Intermittent wipe and low speed wiper control
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Wiper system status
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Ignition ON/OFF timer
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VF displays synchronization
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Rear door and liftgate ajar status
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Acquisition & transmission of external temperature
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A/C select switch status
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Chime
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Courtesy lamps with fade to OFF feature
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Reading lights/glove box lamp load shedding control
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Exterior lighting control including automatic headlamps, fog lamp control and parking lamps
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Exterior lamp status
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Headlamp time delay upon ignition OFF and head- lamps switch OFF
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Parade mode
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Illuminated entry
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Instrument panel dimming
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Vehicle theft security system with panic & horn and hazard lamp activation
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Key-in ignition switch interface
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Brake fluid level switch/park brake switch interface
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Seatbelt reminder
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Speed sensitive intermittent wipe control
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Remote radio switch interface to radio
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Vehicle ignition status
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BCM self diagnostics
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Liftgate courtesy lamp disable
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Rear window defogger control
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Accessory delay control (windows and sunroof)
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Fuel economy and Distance To Empty (DTE) calculations
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Heated seat switch status
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Exterior lamp load shed
