Five Hundred AWD V6-3.0L VIN 1 (2005)
Test C: The Transmission Control Module (TCM) Does Not Respond To The Diagnostic Tool -
Continuously Variable Transaxle (CVT)
PINPOINT TEST C: THE TRANSMISSION CONTROL MODULE (TCM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL
CONTINUOUSLY VARIABLE TRANSAXLE (CVT)
C1
C2-C3
Normal Operation
The TCM communicates with the diagnostic tool through the high speed controller area network (CAN), circuits 1908 (WH) and 1909 (BK). The high
speed CAN remains operational with the severing of one of the high speed CAN circuits or if the data minus circuit is shorted to ground.
Communication may also continue if one of the termination resistors is lost. The high speed CAN does not remain operational if the data plus circuit is
shorted to ground or shorted to voltage. The high speed CAN also does not remain operational if the data minus circuit is shorted to voltage. Check
circuits 1908 (WH) and 1909 (BK) between the TCM C199 and the data link connector (DLC) C251. The total resistance values must not be more
than 5 ohms. If the resistance is more than 5 ohms there is an open in one of the high speed CAN circuits, damage to the DLC C251, damage to the
TCM C199, or a problem in an in-line connector.
