Chrysler PT Cruiser 2001 Service Manual Supplement page 2809

P0740-TORQ CONV CLU, NO RPM DROP AT LOCKUP —
TEST
8 Turn the ignition off.
At the COOLER IN port, install a 0 to 2070 KPa (300 PSI) gauge using a T . Ensure
the gauge hose is long enough to reach in driver's side of vehicle so gauge can be
monitored while driving.
Road test vehicle. Gear select in drive. While monitoring DRB, achieve 80 km/h (50
MPH).
Note: The gauge will read around 103 KPa (15 PSI) until lockup is achieved in 3rd
gear. If the TCC Solenoid is operating properly, the gauge pressure will jump when
lockup is achieved.
Maintain 80 km/h (50 MPH) per DRB. Wait 10 seconds in lockup. Record engine
RPM.
Was engine RPM 2200 RPM + /- 50 RPM?
Yes → Test Complete.
→ Problem appears to be in the Differential, Output Shaft, or Gear
No
9 At this time, the conditions required to set the DTC are not present.
Note: Use the Freeze Frame Data to help duplicate the conditions that set
the DTC. Pay particular attention to the DTC set conditions, such as, VSS,
MAP, ECT, and Load.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wiring harness connectors. Look for
broken, bent, pushed out, or corroded terminals.
Note: Refer to any technical service bulletins that may apply.
Were any problems found?
Yes → Repair as necessary in accordance with the Service Information.
→ Test Complete.
No
ACTION
Box. See pertinent Service Information.
Perform TRANSMISSION DTC VERIFICATION TEST.
Perform TRANSMISSION DTC VERIFICATION TEST.
61
TRANSMISSION
Continued
APPLICABILITY
All
All