2003 Toyota Matrix P0770 CODE

Tiny
BANDIT59
  • MEMBER
  • 2003 TOYOTA MATRIX
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 82,000 MILES
We have been getting this code off and on for about a year, toyota replaced the computer about six months ago under warranty but the code came back intermittantly. Now toyota says it needs a new transmission. I can't see spending two to three thousand dollars on a transmission when the car seems to drive just fine. We have never noticed any shifting problems. Should I be concerned about this code? Or intead of replacing the transmission, can the shift solenoid E be replaced? If so, is it something that can be done myself? I do most of the work on my own vehicles but do not know much if anything about transmissions.
Do you
have the same problem?
Yes
No
Friday, April 2nd, 2010 AT 11:37 AM

5 Replies

Tiny
MERLIN2021
  • EXPERT
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.
Was this
answer
helpful?
Yes
No
+6
Friday, April 2nd, 2010 AT 1:27 PM
Tiny
AMPM24
  • MEMBER
Hey, I have the same problem and the same car now, P0770 code, I found the toyota technical serive bulletin, it say try change the r & r speed sensor gear frist and try the engine conrol module, I just replace the ecm and the code still coming back. I am planning to change the speed sensor gear now, but I can't find it and locate on my transaxie, can anyone send me the pictures, where is the gear locate on my transsxie? My e-mail is ampm24ny@yahoo. Com, thank you
Was this
answer
helpful?
Yes
No
+3
Saturday, May 22nd, 2010 AT 9:13 AM
Tiny
MERLIN2021
  • EXPERT
M.I.L. "ON" P0770 TECHNICAL SERVICE BULLETIN Reference Number(s): EG020-02, Date of Issue: 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. " 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 . " NG - Replace the transaxle. " 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.


http://www.2carpros.com/forum/automotive_pictures/62217_sensors_2.jpg



http://www.2carpros.com/forum/automotive_pictures/62217_tools_2.jpg

Was this
answer
helpful?
Yes
No
+5
Sunday, May 23rd, 2010 AT 8:30 AM
Tiny
AMPM24
  • MEMBER
Hi, thank you for your responed and information. I am still not solve my P0770 code on my 2003 Toyota Matrix 2WD L4-1.8L (1ZZ-FE) auto XR with ABS. I have couple more questions. I was replaced a ECM already and the P0770 come out after 1 days. I have the R&R Speed Sensor Gear(33403-19635), ECM (89666-02160) and toyota technical service bulletin(eg020-02) already and on hand now. Can you give me the some suggestion please. I saw there are two Vehicle Speed Sensors for my car (combination meter and electronically controlled trnsmission) on your diagram.
1)Where is the R&R Speed Sensor Gear location on, is under the Vehicle Speed Sensor(Combination meter) or under Vehicle Speed Sensor(electronically controlled transmission)?
2) I drove the car to the local repair shop and try to replace my R&R speed sensor gear, and the technician said my matrix don't have that gear because this matrix with the ABS brake model, only have the Vehicle speed sensor(Electronically Controlled Transmission), and the VVS(electronically controlled transmission) don't have the gear under it, he show VVS(combination meter) locate on belind the engine and there is no VVS(combination meter) on it, only the cover on it. Is this true my matrix don't have that vvs gear with ABS model? Why the toyota technical bulletin didn't mention about that? Is this true my matrix don't have that gear or technician don't know where is the vvs gear locate it.
3) The local reapir technician told me the next step should be replace one of the solenoid since my matrix don't have the vvs gear and ECM replaced already, and replace one of solenoid cost me around 300 dollars. But the toytoa technical serive bulletin never said replace the solenoid for code P0770.
Is this true to replace the solenoid for next step? Should I listen the technican to replace the solenoid? How much to replace a solensid used to be charge for local repair shop?
Thank you very much!
Ampm24ny@yahoo. Com
2003 Toyota Matrix 2WD L4-1.8L (1ZZ-FE) with ABS break, auto, 84 months, 62000 miles
Was this
answer
helpful?
Yes
No
+1
Sunday, May 30th, 2010 AT 4:21 AM
Tiny
ZINKAPOOP
  • MEMBER
Hi, the technician is correct about the info. ABS specs has a speed sensor on every wheel. This sensor is what tells the ABS control module about an imminent wheel lock, and from this info the ABS regulates the braking pressure so the wheel do not lock. This speed sensor can also send the same speed reading to the combinations meter which your speedometer is read on the screen. Also this same info goes to the ECM and then knows the road speed.

P0770 is showing up because the lock up clutch is not functioning properly. It could be that the clutch in the torque converter is worn out and is slipping or the solenoid itself is not operating correctly, it could be that the oil is dirty or ECM is no sending signal for the solenoid to operate. For 2WD without ABS, it doesn't have a speed sensor at the wheels, so it uses a speed sensor installed on the transmission normally close to the transaxle. If the gears on that speed sensor is not the correct number of tooths, then it mean it will give wrong speed reading.

It is also expected that during lockup the engine speed should be the same as the final drive speed sensor(with tolerance 50-200rpm). So if the wrong teeth was installed. It mean there will be conflicting speed readings from the crank shaft position sensor and the speed sensor installed on the transmission.

For your car with ABS, you don't have to worry about the speed sensor and because ECM is already replaced.

Firstly, Check correct oil level, perform flutching of the transmission and change the ATF- dirt can cause clogging

Secondly, check if the ECM powers the SL or S3 or the lockup solenoid. Check also if the solenoid operates. It make clicking noise. Or as the technician said just replace it.

Third, replace the torque converter if all the above is ok. It could that the lockup clutches are burnt, so it slips.

Hope this is helping
Was this
answer
helpful?
Yes
No
+2
Wednesday, November 23rd, 2016 AT 1:05 PM

Please login or register to post a reply.

Recommended Guides