PCMTuner V1.21 ECU PCR2.1 (EEPROM/UNLOCK/BSL) Guide

This article is a guide of PCMTuner V1.21 on PCR2.1 ECU model.

 

Download & Search to check supported PCR.2.1 ECUs:

PCMtuner Support List (Sorted by Brand Model Year etc.)

 

Step 1. Check ECU lock status

Connect our device to the ECU in car, and check current lock status by ID function.

If it says “Verification Check: Disabled”, it means the check is disabled, and then we can read&write ECU in car.

If not, go to step 2.

 

Step 2. Switch ECU into BSL mode

Remove the ECU.

Switch the chip into BSL mode. (connect these parts by 2 1kohm resistors as the diagram)

Red to +12v

Black to GND

Yellow to CAN-H

Blue to CAN-L

pcmtuner-v1.21-ecu-pcr2.1-eeprom-unlock-bsl-guide-1

pcmtuner-v1.21-ecu-pcr2.1-eeprom-unlock-bsl-guide-2

 

Step 3. Read data

Select PCR2.1 (EEPROM/UNLOCK/BSL)

Click “Identification” to save ECU data.

Click “Read” to save EEPROM data.

If the ECU is encrypted, go to step 4.

 

Step 4. Initialize

Now we need to initialize PCR2.1.

It may prompt:

Module initialization

Entering programming mode

Transfer bootloader

Examination

The digital signature verification check: Disabled

Then we can restore ECU from BSL mode, install it back to car, and read&write in car.

 

Alright, that’s how we read&write PCR2.1 ECU by PCMtuner.

 

Guide via Mr. Bondango

Any questions, contact us.

Email:sales@cardiagtool.co.uk

Whatsapp: +86 15002705698