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Input Selection
Transmission Neutral Switch /
OEM
/
Description:
The Transmission Neutral Switch parameter determines
how the ECM will receive status information from the
neutral switch. The factory default setting listed below
confi gures the ECM to monitor pin 62 of the Vehicle
Harness Connector for a hardwired neutral switch
circuit connection. However, the ECM can also be
confi gured to receive the neutral switch status via the
J1939 datalink, if the transmission ECU is capable of
supporting the required broadcast message protocol.
When the Transmission Style parameter is programmed
to Automatic Option 3 or Automatic Option 4, the
programming expects a neutral switch input. If the
Transmission Neutral Switch parameter is programmed
to None, then the ECM will assume the transmission is in
gear at all times.
Available:
3126E, C7, C9, C11, C13, C15
Range:
Engine Range Cat Default
Pre 2007: 3126E, C7,
C9, C11, C13, C15
J1939, None J1/P1:62*
EPA’07 and newer
C7, C9, C13, C15
J1/P1: 62
J1939
None
Recommendations:
✔ Program this parameter as specifi ed by the
application and transmission