Town & Country V6-3.3L VIN R (2003)
Body Control Module: Component Tests and General Diagnostics
Road Testing A Complaint Vehicle
ROAD TEST WARNINGS
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.
CAUTION: Before road testing a vehicle, be sure that all components are reassembled. During the test drive, do not try to read the DRB III screen
while in motion. Do not hang the DRB III from the rear view mirror or operate it yourself. Have an assistant available to operate the DRB III.
Six Step Troubleshooting Procedure
SIX-STEP TROUBLESHOOTING PROCEDURE
Diagnosis is done in six basic steps:
1. Verification of complaint
2. Verification of any related symptoms
3. Symptom analysis
4. Problem isolation
5. Repair of isolated problem
6. Verification of proper operation
Vehicle Preparation For Testing
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)
APM
Adjustable Pedals Module
ASDM
Airbag System Diagnostic Module (ACM)
ATC
Automatic Temperature Control
BCM
Body Control Module
CAB
Controller Antilock Brake
CMTC
Compass/Mini-Trip Computer
CPA
Connector Positive Assurance
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
EVIC
Electronic Vehicle Information Center
