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Body control module

9K views 7 replies 4 participants last post by  spritely 
#1 ·
Can anyone tell me where the BCM is located
 
#3 ·
Thanks for the info. Its with the dealership for them to sort as the car is still under warranty.
 
G
#5 ·
The BCM is the Body Control Module associated with the battery etc.
A Battery Monitoring System (BMS) control module is mounted on the battery negative terminal and
provides battery status information for the Body Control Module/Gateway Module (BCM/GWM)
assembly.
CAUTION:
When connecting a slave power supply to the vehicle, to avoid damaging the BMS control
module, always use the ground (negative (-)) terminal stud point on the right side top mount in
the engine compartment. Never connect directly to the battery negative terminal when
connecting a slave power supply to the vehicle; the BMS control module can be damaged.
The BJB is located below the luggage compartment floor panel, adjacent to the battery. The RJB is
located on the right side of the luggage compartment behind the trim panel. The BJB and RJB contain
fusible links, fuses, and relays to distribute electrical power to various vehicle systems. The right and
left EJBs are mounted adjacent to the appropriate front suspension top mount in the engine
compartment.
A jump start terminal is located below a hinged cover, adjacent to the right EJB. An additional cover
with a lanyard protects the terminal when not in use. If jump starting is required, the cover must be
removed and the positive (+) jump lead attached securely. The negative (-) jump lead is attached to
a jump start terminal stud located on the right side top mount. The cover must be fitted to the
positive terminal when not in use.
The Voltage Quality Module (VQM) is used to prevent the vehicle electrical systems being subjected to
undesirably low voltages during repeated engine restarts and produces a constant output voltage
during engine restart operation. If the electrical systems are subject to low voltages the customer
may notice degraded performance of components and systems and incorrect fault Diagnostic Trouble
Code (DTC) may be stored.
The PJB is located behind the A-pillar lower trim panel on the passenger side and receives its main
power supply from the BJB.
The BCM/GWM assembly is located adjacent to the PJB, and it is the main controller of the vehicle
body systems. The BCM/GWM assembly controlled functions are outlined in the relevant sections.
The BCM/GWM assembly software will monitor the state of charge of the battery and will determine
when a stop/start event can occur. It can also intervene to maintain vehicle systems by keeping the
engine running or initiating a restart due to, for example, climate control system requirements or
request for restart from the Engine Control Module (ECM). A brake pressure signal is received from
the ECM which will indicate to the BCM/GWM assembly that an engine restart is required from driver
operation of the foot brake. For additional information, refer to:
 
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