A/T - MIL ON, DTC P2757, Fluid Leaks, A/T Warning Lamp ON
Bulletin No: 05-001/13Last Issued: 01/22/2013
Subject:
MIL ON WITH DTC P2757, A/T WARNING LIGHT ON, AND ATF FLUID LEAK
BULLETIN NOTE
* ^ This bulletin supercedes the previous bulletin 05-001/12, issued on 02/29/2012 and 02/17/2012. The APPLICABLE MODEL(S)/VINS and REPAIR PROCEDURE have been revised.
^ Changes are noted by asterisks.*
APPLICABLE MODEL(S)/VINS
*2007-2010 CX-9 vehicles with VINS lower than JM3 TB******237766 (produced before August 20, 2010)*
DESCRIPTION
Some vehicles may exhibit all of the following:
^ Malfunction Indicator Light (MIL) on.
^ Automatic Transmission (A/T) warning light on.
^ Diagnostic Trouble Code (DTC) P2757 (TCC control solenoid circuit performance or stuck off) stored in the Transmission Control Module (TCM) memory.
^ Automatic Transmission Fluid (ATF) leak between the engine and the A/T bell housing.
NOTE:
When DTC P2757 is stored, the TCM will shift into fail-safe mode and limit Torque Converter Clutch (TCC) slip control. A noticeable shift shock or improper shift may occur.
Customers having this concern should have their vehicle repaired using the following repair procedure.
REPAIR PROCEDURE
1. Verify all of the following conditions:
a. MIL on
b. A/T warning light on
c. DTC P2757 is stored in memory
d. ATF leak between the engine and the A/T bell housing
2. Do all of the conditions in step 1 apply?
^ Yes - Proceed to Step 3.
* ^ No - This bulletin does not apply. Proceed to MS3 online or Workshop Manual (section 05-03 SYMPTOM TROUBLESHOOTING ITEM TABLE [AW6AX-EL]).
3. Replace the A/T assembly according to MS3 online or Workshop Manual (section 05/17 AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [AW6A-EL, AW6AZ-EL]).*
NOTE:
Automatic transaxle replacement requires Major Assembly Service Hotline (MASH) authorization prior to repairs. Complete the transmission order form online, then contact MASH to obtain authorization.
4. Perform Automatic Transaxle cooler and lines flushing procedure. Refer to TSB 05-008/11.
5. Verify P2757 is not stored in TCM memory after the replacement of the transaxle assembly. Is DTC P2757 stored in TCM memory after A/T replacement?
^ No - Repair is complete.
* ^ YES - Replace TCM. Refer to MS3 online or Workshop Manual (section 05-17 TCM REMOVAL/INSTALLATION [AW6A-EL, AW6AZ-EL]).*
NOTE:
TCM replacement requires Major Assembly Service Hotline (MASH) authorization prior to repairs. Contact MASH to obtain authorization.
6. Verify repair.
PART(S) INFORMATION
WARRANTY INFORMATION
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