Chrysler 2005 Crossfire SRT6 Service Manual page 3185

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(P0720) CAN BUS CIRCUIT (CONTINUED)
2.
CAN C BUS (+) AND/OR CAN C BUS (-) CIRCUIT OPEN
Note: If the CAN BUS CIRCUIT DTC is present, all the CAN MES-
SAGE MISSING DTCs will be set also. Ignore the Missing Mes-
sage DTCs and perform the CAN BUS CIRCUIT DTC test.
Turn the ignition off.
Disconnect the TCM C3 harness connector.
Disconnect the PCM C4 harness connector.
Disconnect the CAB harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of both the CAN C BUS (+) circuit and the
CAN C BUS (-) circuit from the TCM C3 harness connector and to
both the PCM C4 harness connector and to the CAB harness connec-
tor.
Is the resistance of each BUS circuit below 5.0 ohms?
Yes >> Go To 3
No >> Repair the faulty CAN C BUS circuit for an open.
Perform NAG1 TRANSMISSION VERIFICATION TEST.
3.
CAN C BUS (+) SHORT TO CAN C BUS (-)
With the ignition off.
Measure the resistance between the CAN C BUS (+) circuit and the
CAN C BUS (-) circuit at the TCM C3 harness connector.
Is the resistance above 100 kohms?
Yes >> Go To 4
No >> Repair the CAN C BUS (+) circuit for a short to the CAN C
BUS (-) circuit.
Perform NAG1 TRANSMISSION VERIFICATION TEST.
NAG1 - ELECTRICAL DIAGNOSTICS 21 - 115