70 3 DIAGNOSTIC SOFTWARE OPERATION
Figure 58 Cruise Switches
3. Press and release the CRUISE ON and
RESUME/ACCEL switches at the same time
within 3 seconds of the ignition switch on.
NOTE: There could be as much as a 10 second
delay from the time switches are pressed to the
time DTCs are flashed.
Reading DTCs
1. The red ENGINE lamp will flashoncetoindicate
the beginning of active DTCs.
2. T he amber ENGINE lamp will flash repeatedly,
signaling active DTCs.
NOTE: All DTCs are thre e digits. F or DTCs, see
Appendix C in this manual or form CGE310-1.
Code 111 indicates that no faults were detected.
3. Count the flashes of the ambe r ENGINE lamp in
sequence. After each digit of the code a short
pause will occur.
•Twoamberflashes, a pause; three amber
flashes, a pause; and two amber flashe s a nd
a pause indicate code 232.
4. F or more tha n one DTC, the red ENGINE lamp
will flash once indicating the beginning of another
active DTC.
5. After all active DTCs have flashed, the red
ENGINE lamp will flash twice to indicate the start
of inactive DTCs. Count the flashes from the
amber ENGINE lamp. If there is more than one
inactive code, the red ENGINE lamp will flash
once between each DTC.
6. After all DTCs have been sent, the red ENGINE
lamp will flash three times indicating end of DTC
transmission.
7. To repeat DTC transmission, cycle the ignition
switch and press and release the CRUISE ON
and RESUME/ACCEL switches, at the same time,
within 3 seconds of ignition switch on. The ECM
will re-send stored DTCs.
Clearing DTCs
NOTE: Read and be familiar with all steps and time
limits in this procedure before starting.
1. Set parking brake for the correct sig n al from the
Electronic System Controller (ESC).
2. TurntheignitionswitchtoON.(Donotcrankthe
engine.)
3. Press and hold the CRUISE ON and
RESUME/ACCEL switches at the same
time.
4. Press and release the accelerator pedal three
times within 6 seconds of the ignition switch on.
5. Release the cruise control s witches to clear the
inactive DTCs.
NOTE: Completing this procedure within 3 seconds
of the ignition switch on, without turning the ignition
switch off, will restart DTC transmissio n to the
instrume nt panel.
EGES-270-1
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
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