SS-GM-02 Owner’s Manual
Document: OM-236 Version Code: A
Date: May 06, 2020 Date: Feb 05, 2021
© Copyright 2021 InPower LLC
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InPower LLC
8311 Green Meadows Drive
Lewis Center, Ohio 43035 USA
740-548-0965
www.InPowerLLC.com
Contact Us:
InPower LLC
8311 Green Meadows Drive
Lewis Center, Ohio 43035
740-548-0965
www.InPowerLLC.com
4.0 Troubleshooting
Troubleshooting of the SS-GM-02 is accomplished in the following manner:
1. Make certain that all the connections are tight to the PTO Upfitter Connector
and to the PTO itself, and that +12V power is being supplied to the SS-GM-02.
2. Make certain all the Chassis Ready Conditions (listed in the GM PTO Bulletin)
are satisfied for engagement of the PTO.
3. Apply a mom12Vdc to Input 3 (or alternately momentary GND to Input
4) to start the SS-GM-Start Sequence.
4. Monitor the Start/Run Output (Out3). when the command is acknowledged by
the SS-GM-02 this line will go to +12Vdc. If the vehicle engine starts, this signal
will remain high. If it doesn’t start, it will drop to Gnd after 30 seconds.
5. Finally, apply a mom12Vdc to Input 3 (or alternately momentary GND
to Input 4) to Stop the Engine.
Troubleshooting RPM selection
If the Engine is Running and all Chassis Ready Conditions are satisfied, upon the
selection of either RPM1 or RPM2, the Engine should go to the Selected RPM
programmed by the GM Tech Tool.
