Table of Contents
Advertisement
systems. The pinion factor is programmed into the
control module at the assembly plant.
Using the following steps, the pinion factor can be
checked and/or reset using the DRBIII :
1. Select Transmission system, then Miscella-
neous functions, then Pinion Factor. The DRBIII
will display the current tire size.
2. If the tire size is incorrect, press the Enter key
and then select the correct size.
3. Press the Page Back key to exit the reset
procedure.
Notes About Electronic Pinion Factor Fea-
tures
The nature of the electronic pinion factor requires
that certain features must be taken into consider-
ation.
> If no pinion factor is stored in an installed control
module, the vehicle speedometer will not operate,
engine speed will be limited to 2300 RPM, and
catalyst damage may occur.
> Selecting a wrong tire size will cause the speed-
ometer to be inaccurate and will also cause any
speed related features to operate improperly.
Note: After replacing the PCM, you must
reprogram pinion factor
3.4 USING THE DRBIII
Refer to the DRBIII users guide for instructions
and assistance with reading trouble codes, erasing
trouble codes, and other DRBIII functions.
3.5 DRBIII ERROR MESSAGES
Under normal operation, the DRBIII will dis-
play one of only two error messages:
– User-Requested WARM Boot
– User-Requested COLD Boot
GENERAL INFORMATION
If the DRBIII
should display any other error
message, record the entire display and call the
S.T.A.R. Center.
3.5.1 DRBIII DOES NOT POWER UP
(BLANK SCREEN)
If the LED's do not light or no sound is emitted at
start up, check for loose cable connections or a bad
cable. Check the vehicle battery voltage. A mini-
mum of 11 volts is required to adequately power the
DRBIII .
If all connections are proper between the DRBI-
II and the vehicle or other devices, and the vehicle
battery is fully charged, an inoperative DRBIII
may be the result of faulty cable or vehicle wiring.
For a blank screen, refer to the appropriate Body
Diagnostic manual.
3.5.2 DISPLAY IS NOT VISIBLE
Low temperatures will affect the visibility of the
display. Adjust the contrast to compensate for this
condition.
3.5.3 SOME DISPLAY ITEMS READ ---
This is caused by the scrolling the DRBIII dis-
play a single line up or down. The line which was
scrolled onto the screen might read --- . Use the
page down or page up function to display the
information.
3.6 TRANSMISSION SIMULATOR (MILLER
TOOL # 8333) AND FWD ADAPTER
(MILLER TOOL #8333-1A)
Note: Remove the starter Relay when using
the transmission simulator
*Failure to remove the Starter Relay can
cause a PCM - No Response condition.
*The removal of the Starter Relay will also
prevent the engine from starting in gear.
*The
Transmission
accurately diagnose intermittent faults.
The transmission simulator, simply put, is an
electronic device that simulates the electronic func-
tions of any EATX or NGC controlled transmission
(41TE, 41TE, 45RFE, and 545RFE). The basic func-
tion of the simulator is to aid the technician in
determining if an internal transmission problem
exists or if the problem resides in the vehicle wiring
or control module. It is only useful for electrical
problems. It will not aid in the diagnosis of a failed
mechanical component, but it can tell you if the
control module and wiring are working properly
and that the problem is internal to the transmis-
sion.
5
Simulator
will
not
Advertisement
Table of Contents
