G424F(FE) Service Manual 288 Appendix
Signal I/O Screens 1-4
There are four Signal I/O (Inputs & Outputs) screens available to assist in troubleshooting. Each screen will
display SECM inputs and outputs to the various system sensors, solenoids, relays and drivers. Components
are listed in categories with the signal names, values and SECM pin location. A pin out of each sensor is
given along with the signal type and the corresponding SECM pin connection. System power and sensor
power is actively displayed in red or orange. Ground connections are displayed in grey.
Figure 13. Signal I/O Screen 1
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