How to Choose Yanhua Interface Board for Toyota R7F701401?

 Toyota vehicles come with various dashboard types, especially when it comes to R7F701401 chips. To address these variations, Yanhua Tech has developed different interface boards for accurate and efficient mileage correction. All interface boards are compatible with Yanhua Mini ACDP or ACDP2, and Module 35, allowing mileage correction on bench without soldering, pin lifting, or capacitor removal.

Choose the correct interface board based on the chip encryption type and dashboard layout to ensure reliable and safe operation.

1.For Toyota R7F701401 encrypted dashboard

• Red clips and grooves are parallel (Use Yanhua R7F701401-TOYOTA-B Board)

Operation guide:

Required Tools:

• Mini ACDP-2
• MQB V2 Adapter, 20-PIN Cable & Screw (Included in Module 35 package)
• Yanhua ACDP R7F701401-TOYOTA-B Interface Board
• Toyota R7F701401 Encrypted Instrument Cluster

Connection method:

Step 1

Push the latch of the interface board to the "Unlock" position

Determine its installation area on the odometer according to the thumb screws of the interface board

Step 2

Find the correct precise positioning holes of D1–D4 on the odometer

Step 3

Test point pin definition

Step 4

Align the thumb screws of the interface board with the corresponding screw holes

Align the positioning pins D1 and D2 with the positioning holes

Step 5

Press down the interface board

Tighten the screws

Push the PCB lock buckle toward the "Lock" end to secure the interface board

Overall connection diagram:

Mini ACDP APP Menu Path:

Module → TOYOTA ODO → R7F701401 (Encrypted) → R7F701401-TOYOTA-B Board

Process:

1.Identify Info — Confirm cluster details

2.Pre-Process Chip

Step 1: Backup original data

Step 2: Decrypt chip

3.Reset Mileage (auto mode)

2.For Toyota R7F701401 full LCD meter (encrypted)

• The following Toyota R7F701401 dashboard type is also encrypted (Use Yanhua Module 35 R7F701401-TOYOTA Interface Board)

Operation guide:

http://blog.obdexpress.co.uk/2024/12/18/toyota-r7f714xx-odo-buick-bcm-nec3558-mileage-repair-with-yanhua-acdp2/

3.For Toyota R7F701401 unencrypted dashboard

• Red clips and grooves are not parallel (Use YANHUA ACDP Toyota R7F701401 Unencrypted Interface Board)

Operation guide:

http://blog.obdexpress.co.uk/2025/02/25/yanhua-acdp-toyota-r7f701401-unencrypted-mileage-correction/