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4.3 WARNINGS
4.3.1 VEHICLE DAMAGE WARNINGS
Before disconnecting any control module, make
sure the ignition is off . Failure to do so could
damage the module.When testing voltage or conti-
nuity at any control module, use the terminal side
(not the wire end) of the connector. Do not probe a
wire through the insulation; this will damage it
and eventually cause it to fail because of corrosion.
Be careful when performing electrical tests so as to
prevent accidental shorting of terminals. Such mis-
takes can damage fuses or components. Also, a
second code could be set, making diagnosis of the
original problem more difficult.
4.3.2 ROAD TESTING A COMPLAINT
VEHICLE
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
COMPONENTS BEFORE ROAD TESTING A
VEHICLE. DO NOT TRY TO READ THE
DRBIII
SCREEN
EQUIPMENT DURING A TEST DRIVE. DO
NOT HANG THE DRBIII
EQUIPMENT
FROM
MIRROR DURING A TEST DRIVE. HAVE AN
ASSISTANT AVAILABLE TO OPERATE THE
DRBIII
OR OTHER TEST EQUIPMENT.
FAILURE
TO
INSTRUCTIONS CAN RESULT IN PERSONAL
INJURY OR DEATH.
5.0 REQUIRED TOOLS AND
EQUIPMENT
DRBIII (diagnostic read-out box)
Jumper wires
Ohmmeter
Voltmeter
Test Light
8310 Airbag System Load Tool
8443 SRS Airbag System Load Tool
9001 RF Detector
6.0 GLOSSARY OF TERMS
ABS
antilock brake system
ALL
OR
OTHER
TEST
OR OTHER TEST
THE
REARVIEW
FOLLOW
THESE
GENERAL INFORMATION
ACM
airbag control module
AECM
airbag electronic control module
(ACM)
APM
adjustable pedals module
ASDM
airbag system diagnostic module
(ACM)
ATC
automatic temperature control
BCM
body control module
BTSI
brake transmission shift interlock
CAB
controller antilock brake
CMTC
compass/mini-trip computer
CPA
connector positive assurance
DAB
driver airbag
DDM
driver door module
DLC
data link connector
DRL
daytime running lamps
DTC
diagnostic trouble code
DR
driver
EBL
electric back lite (rear window de-
fogger)
EVIC
electronic vehicle information cen-
ter
GCC
Gulf Coast Countries
HE
hall effect
HFM
hands free module
HVAC
heater ventilation, air conditioning
IOD
ignition-off draw
IPM
integrated power module
LDU
lower drive unit
LHD
left hand drive
MH-
memory heated seat adjustable
SAPM
pedal module
MIC
mechanical instrument cluster
MSAPM
memory seat adjustable pedal mod-
ule
MUX
multiplexed
NGC
next generation controller
OAT
outside air temperature
OBD
on board diagnostics
OCM
overhead console module
37
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