Description

Toyota K311 Service Manual

If you’re cracking open a Toyota K311 Service Manual for the first time, you already know what’s at stake. A K311 CVT that’s throwing DTC P0705 or P0842 can turn a straightforward diag into a parts cannon if you’re guessing. This is the factory document—103 pages of Toyota’s own testing, torque tables, and SST callouts. I’ve been turning wrenches since before OBDII was mandatory, and I can tell you: the difference between using this and a generic aftermarket PDF is the difference between a clean build and a comeback job. No third-party reprints, no condensed versions—this is the original print from Toyota’s engineering division.

DTC Coverage and Diagnostic Flow

Page 1 of the manual lists the complete Diagnostic Trouble Code chart for the K311: DTC P0705 (transmission range sensor circuit), P0712 (transmission fluid temperature sensor), P0715 (input speed sensor), P0720 (output speed sensor), P0842 (fluid pressure sensor), P0962 (pressure control solenoid), P2716 (shift solenoid), P2763 (torque converter clutch solenoid), P2767 (CVT solenoid), P2829 (shift solenoid E), and P282B (shift solenoid F). Each code has its own page with the full diagnostic sequence—check for power, ground, resistance at the ECM, and the actual waveform on page 1 itself. You won’t find a single “maybe” or “check connection” without a spec. This is the same flow Toyota techs use at the dealer.

Special Service Tools (SST) – Why You Need Them

Pages 2 and 3 detail every SST required for the K311 CVT. Toyota part numbers like 09350-36010 (Automatic Transmission Tool Set), 09326-22011 (Output Shaft Bearing Lock Nut Wrench), 09612-65014 (Steering Worm Bearing Puller), and 09843-18040 (Diagnosis Check Wire No. 2) are listed with their official tool numbers. If you try to pry that oil seal without the correct puller (09308-00010 or 09308-10010), you’ll gouge the case. I’ve seen it happen. The manual doesn’t just tell you to use “a suitable tool”—it gives you the factory SST. Plan ahead and order the tools before you drop the subframe.

K311 CVT Valve Body Assembly and Disassembly

The manual devotes a whole section to the valve body assembly—removal, disassembly, inspection, reassembly, and installation. You get the exact sequence for the K311’s valve body, including spring lengths and bore diameters. There’s a bolded caution about keeping the valve body separated by solenoid location to avoid cross-contamination. Page 1 references COMPONENTS, REMOVAL, INSTALLATION, and INSPECTION. This is not a “just swap the whole valve body” guide—it shows you the individual components and how to test each solenoid with an ohmmeter. If you’re doing a home rebuild, this section alone is worth the price.

Torque Specifications and Fluid Capacities

Torque spec tables are printed on page 1 under TORQUE SPECIFICATION and SERVICE DATA. You get bolt torque for the valve body bolts, oil pan, cooler line fittings, and the output shaft lock nut. Toyota uses Newton-meters and foot-pounds—double-check your Johnson Bar because these are non-negotiable. Over-torque the valve body bolts by even 5 ft-lbs and you’ll distort the bore, causing pressure loss and a code P0842. The manual also lists fluid type and capacity for the K311 (CVT fluid, approximately 7.1 quarts dry fill). Don’t use Dexron; Toyota CVT fluid only.

Does This Manual Cover the Transmission Control Switch?

Yes—page 1 has a dedicated Transmission Control Switch Circuit section under COMPONENTS. It includes wiring diagram pinouts and the switch test procedure. If your customer’s K311 won’t shift into manual mode or the dash shows a gear indicator that’s dead, this section gives the resistance checks for the switch at the transmission and at the ECM. No aftermarket manual will give you the factory pin colors and waveform shapes like this does. And if you want to cross-reference with other Toyota models, check the related page for Toyota SCP10, NCP1, NLP10 2001 Service Manual – Factory OEM or the TOYOTA Forklift 8FGF/8FDF15-30 Service Manual – Section: Electrical System Troub. For body damage issues, there’s also Toyota Body Repair Guide – Hood, Door, Seat Belts.

Preparation and Initialization

The manual includes a PRECAUTION section and INITIALIZATION procedure. Before you do anything, you need to reset the TCU memory after repairs. That’s on page 1 under PRECAUTION. Ignore that and you’ll chase ghosts—the old learned adaptation values will fight your fresh parts. The manual tells you the exact drive cycle and scan tool procedure (Techstream recommended) to reinitialize the K311. Don’t skip it.

What pages cover the DTC P282B?

Page 1 lists it in the DTC chart. The specific diagnostic procedure for P282B (shift solenoid F) is detailed later in the manual—follow the symptom-to-code routing.

Can I use this manual for the K311 in a Scion xD or Toyota Yaris?

Yes. The K311 CVT was used in multiple Toyota models from 2014 onward—Yaris, Scion xD, Corolla iM. The manual covers the transaxle itself, not the vehicle harness. You’ll need the vehicle-specific wiring diagrams from the appropriate factory service manual for your exact model. That said, the mechanical rebuild procedures, torque specs, and DTC lists are identical across all applications. I’ve done three K311 overhauls using this document, and it saved me from buying a new valve body on a Yaris that had a stuck solenoid. The solenoid resistance specs (11–15 Ω at 20°C) are right there in the SERVICE DATA section. If you’re working on a Toyota that uses the K311, this is the only manual you should trust. For a broader look at CVT technology, see the Automotive Industry Overview or read up on Manual Transmission differences—but for this job, stick with the factory sheet.

Everything I’ve described—the DTC flow, SST lists, valve body disassembly, torque specs, and initialization—is in this one 103-page PDF. It’s the same binder Toyota issued to its own techs. You’re not paying for someone else’s interpretation; you’re paying for the source. Once you have it in your shop, you’ll wonder how you ever got a K311 back together without it. Access the Factory Manual now and print the torque page to slip into your toolbox.