Chrysler 2005 Crossfire SRT6 Service Manual page 3160

21 - 90 NAG1 - ELECTRICAL DIAGNOSTICS
(P0714) TRANS TEMP SENSOR ERRATIC (CONTINUED)
When Monitored and Set Condition
• When Monitored: When transmission temperature is below 170°C (338°F).
• Set Condition: When there is a 10°C (18°F) variation between each transmission temperature sensor read. If
the condition is not present (after an ignition cycle), the DTC will be set to Stored (Intermittent) status.
TRANSMISSION TEMP SENSOR CIRCUITS
TRANSMISSION CONTROL MODULE
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.
TRANSMISSION TEMP SENSOR CIRCUITS
Turn the ignition on.
With the DRB III , monitor the Transmission Temperature.
With the brakes firmly applied, place the gear selector in Drive.
While monitoring the DRB III , wiggle the wires and connectors from
the TCM to the Transmission Solenoid Assembly.
Did the transmission temperature fluctuate while wiggling the
wires?
Yes >> Repair the wiring and/or connectors as necessary.
Perform NAG1 TRANSMISSION VERIFICATION TEST.
No >> Go To 3
POSSIBLE CAUSES
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