Module 95 - Toyota, Lexus Gen 4

Caption:

• RD: Read
• WR: Write
• NC: No Checksum

Direct connection to the ECU connector is required for operation!

Supported ECU

• LC300 3.3TD P5-UDS (F33A-FTV/R7F701216) [RD/WR/NC]
• LC300/LX600/Tundra 3.5T P5-UDS (V35A-FTS/R7F702002) [RD/WR/NC]
• LS500 3.5T P5-UDS (V35A-FTS/R7F702002) [RD/WR/NC]
• Tundra 3.5T HV P5-UDS (V35A-FTS/R7F702002) [RD/WR/NC]
• NX350/RX350/Highlander 2.0T, 2.4T P5-UDS (S24A-FTS/T24A-FTS/R7F702002) [RD/WR/NC]
• ES200/Camry/Rav4/Wildlander 2.0L, 2.5L China P5-UDS (M20A/M20C/M20D/A25A/R7F702002) [RD/WR/NC]
• LC250 2.7L P5-UDS (2TR-FE/R7F701216) [RD/WR/NC]
• LC250 2.8TD P5-UDS (1GD-FTV/R7F701216) [RD/WR/NC]
• RX450h/Camry/Corolla/Vellfire 2.0L, 2.5L HV P5-UDS (M20A/M20E/A25A/A25B/R7F701216) [RD/WR/NC]
• Yaris GR 1.6T MCU #1 P5-UDS (G16E-GTS/R7F701216) [RD/WR/NC]

In version 1.3.5, a new module 95 “Toyota/Lexus Generation 4” has been added, designed to work with Denso ECUs featuring the R7F702002 microcontroller, installed in Toyota and Lexus vehicles with 3.5T (V35A-FTS) and 2.4T (T24A-FTS) gasoline engines from the 2022 model year onwards (Toyota Tundra/Tundra Hybrid/LC300/Highlander, Lexus NX350/RX350/LS500/LX600).

Please note that starting from the 2024 model year, Toyota will begin implementing digital signatures in the ECUs for the V35A-FTS engines. However, I haven’t encountered these models yet, so they seem to be quite specific. For these vehicles, an error will likely occur after the bootloader transfer stage. Nothing will happen to the ECU; it will simply refuse to continue the process.

ATTENTION! Reading and writing to the ECU can be performed via direct connection to its connector (no need open  ECU). Interruptions during the writing process are not a concern, and power can be disconnected. However, if a “bad” firmware is written, it will result in a bricked ECU, just like with generation 3!

Toyota decided not to use checksums in these ECUs at all, which is a strange decision, but that’s how it is. There’s no need to search for someone to recalculate checksums, it’s pointless, as there simply aren’t any.

Attention to tuners: to protect the firmware from being read, it is necessary to replace the string “no comment” with “no reading” in the ECU’s ID block, similar to generation 3.

Download Pinout: ECU Pinout

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