P0770 CODE?

Toyota should be on the hook if you had any of these P0770 related issues BEFORE 60 months or 60,000 miles, I will send the Tech Bulliten to you. If you get no where with Toyota.

M.I.L. "ON" P0770 TECHNICAL SERVICE BULLETIN Reference Number(s): EG020-02, Â Date of Issue: Â October 23, 2002 TOYOTA: 2003 Corolla, Matrix SECTION: Engine Related Ref Number(s): EG020-02 ARTICLE BEGINNING INTRODUCTION Some 2003 model year Corolla and Matrix vehicles may exhibit M.I.L. "ON" with DTC P0770 (Shift Solenoid E Malfunction). Several production changes have occurred to correct this condition. Follow the REPAIR PROCEDURE to address those vehicles that exhibit the condition. NOTE: The repair procedure must be followed closely to assure that only the affected part is replaced, as multiple possible causes are listed. APPLICABLE VEHICLES 2003 model year Corolla and Matrix vehicles produced BEFORE the Production Vehicles Change Effective VINs shown below. "Â PRODUCTION CHANGE INFORMATION PRODUCTION CHANGE INFORMATION Model Transaxle Production Change Effective VIN Corolla A245E 1NXBR32E23Z061836 Matrix A246E 2T1KR32E13C025931 Matrix U341F 2T1LR32E63C711127 WARRANTY INFORMATION Fig. 1: Warranty Information Chart Applicable Warranty: R & R of the Speed Sensor, Transaxle, and Torque Converter Clutch Assembly are covered under the Toyota Powertrain Warranty. This warranty is in effect for 60 months or 60,000 miles, whichever occurs first, from the vehicle's in-service date. R & R of the Engine Control Module is covered under the Toyota Federal Emissions Warranty. This warranty is in effect for 96 months or 80,000 miles, whichever occurs first, from the vehicle's in-service date. NOTE: Warranty application is limited to correction of a problem based upon a customer's specific complaint. REQUIRED TOOLS AND MATERIAL Fig. 2: Required Tools & Material Chart NOTE: Additional Diagnostic Tester Kits, Program Cards or SSTs may be ordered by calling SPX/OTC. PARTS INFORMATION The following table (see Fig. 3 ) provides the applicable part numbers and part identification methods for the Corolla and Matrix. Fig. 3: Parts Information Chart REPAIR PROCEDURE Using the Diagnostic Tester, retrieve stored Diagnostic Trouble Codes. Print or create a Techview file of the Freeze Frame data related to DTC P0770 for later reference. 1. Check the vehicle speed sensor driven gear for proper number of teeth. 2. OK - Go to step 3 . NG - Replace the speed sensor gear with the correct P/N gear. Check the Engine Control Module (ECM) part number for correct application to the affected vehicle. 3. OK - Go to step 4 . NG - Replace the ECM with the correct part number part. Check the transaxle part number for correct application to the vehicle (printed on decal on transaxle case). 4. OK - Go to step 5 . NG - Replace the transaxle with the correct part number part. Check the transaxle for damage resulting in ATF leaks through the transaxle case. 5. OK - Go to step 6 . "Â NG - Replace the transaxle. "Â Using the Diagnostic Tester, monitor the data list and drive the vehicle under conditions similar to those displayed in the Freeze Frame data (vehicle speed, throttle position, etc.). Confirm proper shifts between lock up clutch On and Off by watching for RPM to decrease or increase by 50 to 200 RPM. 6. OK - Go to step 7 . NG - (No lock up operation or lock up clutch "sticking On"). Perform diagnosis per the applicable Repair Manual (RM) to identify the cause of the lock up clutch malfunction (valve body valves, SL solenoid, etc.). Check the transaxle serial No. to identify whether it is between 01MZT18645 and 01MZT22241. 7.YES - Replace the torque converter. NO - Perform diagnosis per the applicable Repair Manual (RM) to identify the cause of the lock up clutch malfunction (valve body valves, SL solenoid, etc.). NOTE: Affected torque converters can be identified once removed from the vehicle by checking the torque converter serial number which is printed on a decal affixed to the torque converter front cover. Affected torque converter serial numbers range between 01M07669 and 01M08000. Page 3 of 3 M.I.L. "ON" P0770 -2003 Toyota Matrix 5/23/2010
To determine what needs to be replaced, you must follow these steps! You will end up replacing good parts, or get lucky, but all parts in this TSB are expensive, and the ECM is covered for 96 months or 80,000 miles. Sensor is on top of the transmission.

P0770 Shift Solenoid E Malfunction
A. It's a really simple circuit and easy to test. Here's some information and how to do the tests.

DTC P0773 Shift Solenoid E Electrical Malfunction. (Shift Solenoid Valve SL).

CIRCUIT DESCRIPTION:
The shift solenoid valve SL is turned ON and OFF by signals from the ECM to control the hydraulic pressure acting on the lock-up relay valve, which then controls operation of the lock-up clutch.

Fail safe function:
If the ECM detects a malfunction, it turns the shift solenoid valve SL OFF.

DETECTING CONDITION:

WIRING DIAGRAM:

INSPECTION PROCEDURE:

Mark (mhpautos)