Chrysler Crossfire. Manual - part 731
(P0700) TRANSMISSION SLIPPING (CONTINUED)
When Monitored and Set Condition
•
When Monitored: Engine RPM greater than 450 RPM, output speed greater than 180 RPM, no N2 - N3 input
speed sensor errors present, no gear selector lever errors present, no ABS system errors, and all wheel
speeds between 70 - 380 RPM with no wheel slip detected.
•
Set Condition: Calculated ratio not within allowable range for the engaged gear. No shifting operation. The
TCM constantly calculates the transmission ratio based on the N2 - N3 input speed signals and the calculated
output shaft speed (CAN message from the ABS). The TCM will detect if the transmission is slipping or an
invalid gear ratio is present.
POSSIBLE CAUSES
OTHER DTCS PRESENT
AXLE - MECHANICAL - GEAR RATIO
INTERNAL TRANSMISSION
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
T
, read Engine DTCs. Check and repair all engine
DTCs prior to performing transmission symptom diagnostics.
With the DRB III
T
, 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 Bulletin that may apply.
Perform this procedure prior to Symptom diagnosis.
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NAG1 - ELECTRICAL DIAGNOSTICS
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