Ford slow codes, Gm lamp codes – GxT Ferret 63 DIAGNOSTIC ENGINE ANALYZER User Manual
Page 12

FORD SLOW CODES
The Code Reader can be selected to count and display
fault code pulse trains from Ford engine computers.
Press START.
Hook the red Auxiliary Clip to the Self Test Output pin.
Press START.
Read by following the Ford service manual instructions
for voltmeter connections to the Self Test Connector.
Readings are similar to a Ford STAR tester.
Ford has different engine test modes for reading codes
such as:
KEY-ON ENGINE-OFF
ENGINE-RUNNING
OUTPUT CYCLING (engine off)
WIRE WIGGLE
STI and STO are used on other shapes of Ford connec-
tors throughout the world.
EXAMPLE: Fordʼs QUICK TEST: Hook the red Auxiliary
Clip to the STO pin in the Ford Self Test Connector, and
connect a separate wire to the STI pin (be prepared to
switch the loose end to ground). Because some engine
code tests require the technician to operate brakes,
steering, and throttle it is most convenient to place the
analyzer and STI-to-ground connection next to the driv-
ing controls.
Have the Fordʼs engine key off, then turn the key on, and
ground the STI connection. Wait at least 15 seconds for
the code pulses to be read and shown on the display. An
“11” is the usual end of codes.
The last code read will show at the top with the first six
along the bottom line. Repeated codes are not saved.
Once the screen is filled the analyzer will continue count-
ing and displaying, but no more codes are saved.
SELECT: FORD SLOW CODES
TEST then START
Hook AUX CLIP to
car's fault code OUTPUT
FORD SLOW CODE 11
11
GM LAMP CODES
The specific vehicle service manual is required to perform
this test. The usual procedure is to connect the Auxiliary
Clip to pin D of the ALDL connector, which is the “Service
Engine Soon” lamp terminal.
Press START.
Have the engine stopped with the ignition on, and enter
the diagnostic mode by bridging Test Terminal pin B to
pin A or ground.
Use trouble codes by following the vehicle service
manual instructions.
For regular ECM trouble shooting we suggest that a scan tool with connector adaptors, code translating
software, and data stream readouts be used.
Hook AUX Clip to
car's fault code OUTPUT
GM LAMP CODES 12
12
Only six codes are saved on the screen. Once the
screen is filled the analyzer will continue counting and
displaying, but no more are saved.
To clear the screen for a retest, press START and then
SELECT.
SELECT: to ERASE codes
START: to KEEP codes
FORD
SELF TEST
CONNECTORS
(USA)
SELF TEST INPUT
(STI)
ACTUATING
CONNECTION
SIGNAL
RETURN
(GROUND)
SELF TEST OUTPUT (STO)
CONNECT TO ANALYZER RED AUXILIARY
"SERVICE ENGINE
SOON" LAMP
TEST TERMINAL
GROUND
GM ALDL CONNECTOR (USA)
TYPICAL SINCE 1982
D
B A
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