Sprinter 2500 L5-2.7L DSL Turbo (2003)
Body Control Module: Component Tests and General Diagnostics
Six Step Troubleshooting Procedure
Diagnosis of the body system is done in six basic steps:
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verification of complaint
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verification of any related symptoms
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symptom analysis
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problem isolation
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repair of isolated problem
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verification of proper operation
Road Testing
Some complaints will require a test drive as part of the repair verification procedure. The purpose of the test drive is to try to duplicate the diagnostic
code or symptom condition.
WARNING: REASSEMBLE ALL COMPONENTS BEFORE ROAD TESTING A VEHICLE. DO NOT TRY TO READ THE DRBIII(R)
SCREEN OR OTHER TEST EQUIPMENT DURING A TEST DRIVE. DO NOT HANG THE DRBIII(R) OR OTHER TEST EQUIPMENT
FROM THE REARVIEW MIRROR DURING A TEST DRIVE. HAVE AN ASSISTANT AVAILABLE TO OPERATE THE DRBIII(R) OR
OTHER TEST EQUIPMENT. FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJURY OR DEATH.
Vehicle Preparation For Testing
Make sure the vehicle being tested has a fully charged battery. If it does not, false diagnostic codes or error messages may occur.
Glossary of Terms
ABS
antilock brake system
ACM
airbag control module
ACT
actuator
AECM
airbag electronic control module (ACM)
ASDM
airbag system diagnostic module (ACM)
ATC
automatic temperature control
CAB
controller antilock bake
CAN
controller area network
CHM
cabin heater module
CPA
connector positive assurance
CTM
central timer module
DAB
driver airbag
DCHA
diesel cabin heater assist (cabin heater)
DLC
data link connector
DTC
diagnostic trouble code
DR
driver
EBL
electric back lite (rear window defogger)
ECM
engine control module
GCC
Gulf Coast Countries
HBM
heater booster module
HVAC
heater ventilation, air conditioning
IC
instrument cluster
MIC
mechanical instrument cluster
SA
shifter assembly
SKREEM sentry key remote entry module
SSM
security system module
TCM
transmission control module