•
When Monitored:
Every 7 msec with:
1) Engine speed greater than 500 RPM.
2) Battery voltage between 10 and 16 volts.
•
Set Condition:
CAN C bus messages are not received for 10 seconds.
Theory of Operation
The NGC controller communicates over the CAN C bus. The transmission controller continuously monitors bus
activity. The CAN C bus is also used to communicate transmission MIL status to the Engine Controller. If the Engine
Controller is unable to communicate with the Transmission Controller, a DTC will set and the Engine Controller will
illuminate the MIL.
Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING for diagnostic
procedures and for further possible causes.
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AUTOMATIC TRANSMISSION 42RLE - ELECTRICAL DIAGNOSTICS
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