Chrysler 2005 Crossfire SRT6 Service Manual page 3195

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(P0740) TCC OVERTEMP (CONTINUED)
When Monitored and Set Condition
• When Monitored: Solenoid supply active. No Input Speed Sensor N2 - N3, CAN BUS, PCM, CAN Engine,
CAN Engine Speed DTCs present. Torque Converter Clutch in slip mode.
• Set Condition: Friction loss factor reaches threshold.
INTERNAL TRANSMISSION
For a complete Transmission Control Module Circuit Diagram, (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTO-
MATIC - NAG1 - SCHEMATICS AND DIAGRAMS).
Diagnostic Test
1.
PRE-DIAGNOSTIC CHECK OUT
Note: Low fluid level can be the cause of many transmission
problems. If the fluid level is low, locate and repair the leak then
check and adjust the fluid level in accordance with the Service
Information.
Note: Always perform diagnostics with a fully charged battery to
avoid false symptoms.
With the DRB III , read Engine DTCs. Check and repair all engine
DTCs prior to performing transmission symptom diagnostics.
With the DRB III , read and record all Transmission DTCs.
Note: Check connectors - Clean/repair as necessary. Poor pin to
terminal connections can set DTCs.
Using the wiring diagram/schematic as a guide, inspect the wiring and
connectors. Repair as necessary.
Most DTCs set on start up but some must be set by driving the vehicle such that all diagnostic monitors have run.
Note: Check for any Technical Service Bulletins that may apply.
Perform this procedure prior to Symptom diagnosis.
Continue
Go To 2
2.
INTERNAL TRANSMISSION
This DTC is an informational DTC.
Check for any Technical Service Bulletins that may apply.
This is usually a sign of TCC failure or internal transmission problems.
Check the Engine and Transmission Cooling Systems for proper operation.
View repair.
Repair
Repair internal Transmission as necessary. Refer to the Service Information for proper repair procedure.
NAG1 - ELECTRICAL DIAGNOSTICS 21 - 125
POSSIBLE CAUSES