A/T - Delayed Engagement When Cold/Multiple DTC's Set
38 Delayed engagement when cold or no drive on first engagement (DTC P2700, P2701, P2702, P2703 or P0730)
38 11 05
2021292/3
January 21, 2011.
Supersedes Technical Service Bulletin Group 38 number 10 - 01 dated March 19, 2010 for the reasons listed below.
AFFECTED VEHICLES
402
CONDITION
Customer may report:
^ At startup, intermittent no drive when selecting driving mode D or R.
^ The vehicle can be driven only in 3rd gear (Limp Home Mode).
Workshop findings:
^ In rare circumstances, if the vehicle was in motion and the ATF strainer becomes loose, the transmission may go into Limp Mode and can be
driven in only 3rd gear.
^ In cold conditions, the gearbox shifts with a delay. In hot conditions, suction noises occur.
^ The following DTCs may be stored in the transmission control unit:
^ DTC P0730 (Transmission monitoring incorrect gear ratio)
^ DTC P2700 (Clutch A implausible)
^ DTC P2701 (Clutch B implausible)
^ DTC P2702 (Clutch C implausible)
^ DTC P2703 (Clutch D implausible)
TECHNICAL BACKGROUND
Because of a design change, the ATF strainer can come loose from the guide of the ATF pump intake duct. As a result, air can be drawn in. Air
causes the oil to foam, which prevents the clutches from closing completely.
PRODUCTION SOLUTION
Optimized ATF filter.
SERVICE
If the complaint can be reproduced, proceed as follows:
1. Check the gearbox control unit for the above entries and create a diagnosis protocol.
^ If there are no faults stored but the concern can be duplicated; proceed to step 2.
^ If one or more of the above DTCs are stored, proceed to step 3.
2. Check the ATF level per ELSA instructions.
^ If the fluid level seems too high and foamy due to air mixed with the ATF, proceed to step 3.
^ If the fluid is at the correct level and the fluid is not foamy, open a Technical Assistance Center (TAC) ticket and contact a TAC representative.
3. Drain the ATF into a clean container and remove the ATF pan.
Tip: Catch the ATF in a clean container and reuse it after the repair.
4. If the filter was found in the bottom of the pan, proceed to step 6.
5. If the filter is still seated in the valve body, try to remove it with light force.
403
^ When removed, if the filter seal remained behind in the valve body or is not fully installed on the neck of the filter, proceed to step 6.
^ If the seal is fully installed on the filter as shown in Figure 1, open a TAC ticket and contact a TAC representative.
6. Replace the ATF filter with a new filter according to the Repair Manual.
Note:
Make sure that the magnets in the oil sump are not stuck on the underside (metal side) of the loose ATF filter and are not removed with the old
strainer. The magnets must be reinstalled in the pan to protect the transmission from metallic particle abrasion in their correct original location.
7. If there are complaints of gear shift quality after replacing the ATF filter, clear the adaptations in the test plan and then perform the GFF or
Guided Functions Adaptation Drive.
404
WARRANTY
405
REQUIRED PARTS AND TOOLS
ADDITIONAL INFORMATION
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service
manuals for the latest information.
