Torque converter circuit high

Asked by Jan 12, 2017 at 12:33 PM about the 2007 Lexus ES 350 FWD

Question type: Maintenance & Repair

I have 2007 Lexus es350. Check engine light, VSC,
and off road signs are on. I diagnosed it and the
code is P2770 Torque Converter Circuit High.  I
wanted to know how serious is this to repair and
what's the easier way to repair?

2 Answers

113,605

he shift solenoid valve DSL is turned ON and OFF by signals from the Engine Control Module (ECM) in order to control the hydraulic pressure operation, the lock-up relay valve, which then the controls operation of the lock-up clutch. Torque converter lock-up is controlled by the ECM based on engine rpm, engine load, engine temperature, vehicle speed, transmission temperature, and shift range selection. The ECM determines the lock-up status of the torque converter by comparing the engine rpm (NE) to the input turbine rpm (NT). The ECM calculates the actual transmission gear by comparing input turbine rpm (NT) to counter gear rpm (NC). When conditions are appropriate, the ECM requests lock-up by applying control voltage to shift solenoid DSL. When the DSL is opened, solenoid DSL applies pressure to the lock-up relay valve and locks the torque converter clutch. If the ECM detects an open or short in the DSL solenoid circuit, the ECM interprets this as a fault in the DSL solenoid or circuit. The ECM will turn on the MIL and store the DTC.

113,605

Like any check engine light that comes on in your car, its telling you that something is wrong and needs attention and to be fix. I would not drive the car at all. It's the shift solenoid in the transmission for a few hundred to repair it now will save you thousands to replace the entire transmission

Your Answer

Lexus ES 350 Experts

  • #1
    Kyle Rogan
    Reputation
    1,200
  • #2
    joef
    Reputation
    280
  • #3
    charliern9
    Reputation
    240
View All

Related Models For Sale

Used Lexus GS 350
184 Great Deals out of 3,548 listings starting at $5,800
Used Lexus RX 350
558 Great Deals out of 20,469 listings starting at $5,788
Used Lexus LS 460
99 Great Deals out of 1,966 listings starting at $7,500
Used Toyota Camry
1,107 Great Deals out of 87,564 listings starting at $995
Used Toyota Avalon
234 Great Deals out of 15,980 listings starting at $997
Used Honda Accord
1,113 Great Deals out of 74,388 listings starting at $1,100
Used Lexus IS 250
270 Great Deals out of 5,237 listings starting at $3,500
Used Lexus IS 350
87 Great Deals out of 1,493 listings starting at $6,249
Used BMW 5 Series
577 Great Deals out of 15,865 listings starting at $1,650
Used Mercedes-Benz E-Class
722 Great Deals out of 22,935 listings starting at $1,450
Used Mercedes-Benz C-Class
907 Great Deals out of 28,353 listings starting at $2,001
Used BMW 3 Series
1,169 Great Deals out of 33,028 listings starting at $1,200
Used Lexus GS 300
18 Great Deals out of 650 listings starting at $2,500
Used Lexus ES 330
33 Great Deals out of 1,006 listings starting at $2,600

Used Cars For Sale

2018 Lexus ES 350 FWD For Sale
3,646 listings starting at $36,614
2017 Lexus ES 350 FWD For Sale
8 Great Deals out of 744 listings starting at $31,499
2016 Lexus ES 350 FWD For Sale
27 Great Deals out of 565 listings starting at $24,288
2014 Lexus ES 350 FWD For Sale
84 Great Deals out of 1,147 listings starting at $16,997

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.