Table 85
Diagnostic Trouble Codes
J1939
Code
Code Description
Comments
976-2
PTO Governor State : Erratic, Inter-
mittent, or Incorrect
The Electronic Control Module (ECM) detects one of the following conditions:
One of the PTO switches was pressed within 2.5 seconds of the keyswitch being turned
on.
OR
One of the PTO switches was pressed for more than 10 seconds.
OR
Two PTO switches were pressed at the same time for at least 0.5 seconds.
The battery voltage is at least 10 VDC.
The warning lamp will come on.
Follow the troubleshooting procedure in order to identify the root cause of the problem.
Illustration 43 g03729581
Schematic diagram for the PTO switches
Not all connectors are shown. Refer to the Electrical Schematic for the application.
170 UENR0612
Circuit Tests
This document has been printed from SPI2. NOT FOR RESALE
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