DENSO AIRBAG MODULES ( RENESAS H8SX17XX ) FOR HONDA ,

TOYOTA , LEXUS, SUBARU, SUZUKI.

HOW TO CLEAR CRASH DATA IN 12 STEPS WITHOUT MCU

DESOLDERING .

IF YOU DON’T HAVE FLASH FOR YOUR MODULE AND THIS MODULE NOT INCLUDED IN RELELIGHT

SUPPORT LIST THEN YOU NEED TO READ YOUR MODULE.

AFTER YOU READ FLASH DATA FROM THIS MODULE YOU CAN REPAIR All MODULES WITH THIS

PARTNUMBER JUST BY WRITING THIS FLASH DATA TO MCU VIA UART CONNECTION USING RENEPROG

LIGHT OR RENEPROG FULL WITH UART ADAPTER ( BUT YOU NEED TO USE RENELIGHT SOFTWARE ).

STEP1

DISASSEMBLING

STEP2

REMOVE PROTECTIVE COATING FROM MCU.

STEP 3

DISCONNECT FROM PCB AND LIFT THE PIN # 72 ( EMLE )

STEP 4

GLUE THE JTAG SMALL PCB TO MCU WITH THERMAL GLUE

STEP 5

CONNECT JTAG SMALL PCB SOLDERING POINT TO MCU PINS

JTAG SMALL PCB LAYOUT

FOR REPAIR AIRBAG MODULE YOU NEED :

RENEPROG , JTAG ADAPTER , WIRE SET

JTAG ADAPTER

STEP 6

CONNECT RENEPROG TO AIRBAG

STEP 7

START reneprog_v1.15.exe

STEP 8

SELECT YOUR MCU TYPE , SELECT ID_ROM AREA AND PRESS READ.

IF WIRE CONNECTION IS OK AND YOU SELECT NECESSARY MCU TYPE THEN YOU CAN SEE YOUR

MCU TYPE AFTER READING .

STEP 9

SELECT MAIN FLASH AREA AND PRESS READ

STEP 10

SELECT MAIN FLASH AREA AND PRESS VERIFY

IF VERIFY IS OK PLEASE SAVE YOUR FLASH

STEP 11

SELECT EEPROM AREA AND PRESS READ . SAVE EEPROM DATA AFTER READING.

CONGRATULATIONS!!!

NOW YOU HAVE ALL NECESSARY DATA FOR REPAIR YOUR MODULE.

STEP 11

IT IS EASY WAY FOR ERASE CRASH DATA FROM YOUR MODULE.

SELECT MAIN FLASH AREA OPEN YOUR SAVED FLASH AND PRESS WRITE .

IF YOU WRITE FLASH BACK TO MCU THEN ALL MEMORY IN YOUR MCU WILL BE ERASED !

FLASH AND EEPROM !

AFTER FLASH WRITING YOU WILL HAVE THE MCU WITH TRUE DATA IN FLASH AREA AND EMPTY

EEPROM AREA .

SELECT EEPROM AREA AND READ

FOR THIS DENSO MODULE TYPE BLANK EEPROM AREA = NO CRASH DATA .

EMPTY ( BLANK ) EEPROM = FF IN ALL EEPROM BYTES

IF YOU DON’T LIKE THIS EASY WAY THEN YOU CAN EDIT EEPROM DATA AND WRITE BACK TO MCU

EEPROM AREA.

STEP 12

NOW YOU NEED TO REMOVE ALL ADDITIONAL WIRES AND PCB , CONNECT PIN #72 BACK TO

AIRBAG PCB AND INSTALL YOUR MODULE BACK IN TO THE CAR .