After a period of time .Audi A 6L / Q7 steering lock module J518 suffer failur .it is a typical problem , the same as Benz ELV steeting lock .it will cost you 2000 USD to repair it ,if you solve in 4 USD store .Today i will share you a simple way to solve steering lock module J518 fault .
Audi A6L /Q7 steering lock module J518 fault result below troubles.
- When use key to start your car it is OK to swith but the dashboard light off and can ot unlock the steering lock engine will not start .
Use car diagnostic tools like VCDS or Launsh to read trouble code ,sometime after clear the troubles code you can use the key to start engine again ,but sometime can't .
There are main reasons result in steering lock Module J518 trouble .
1-Interior CPU faut
2-Interior relay fault
Audi A6L /Q7 steering lock module J518 fault result below troubles.
- When use key to start your car it is OK to swith but the dashboard light off and can ot unlock the steering lock engine will not start .
Use car diagnostic tools like VCDS or Launsh to read trouble code ,sometime after clear the troubles code you can use the key to start engine again ,but sometime can't .
There are main reasons result in steering lock Module J518 trouble .
1-Interior CPU faut
2-Interior relay fault
The corresponding Solutions is /:
1- CPU Mamage
The most effective way to solve CPU Damage is replacement You can buy new one to replace old but you shold pay attention to the data in old CPU . Before replacement you need to use programmer to read and save the data in old CPU include flash data and eeprom data Different programmer have different wire connection style .
CPU Module Num begin with MC9S12 and end in (0L01Y/1L59W/3L40K)
Then welding it back on J518 and write the old CPU data in the new CPU . After assemble it back to car it OK
No need match the key .
2- Relay fault
Reply fault is easier than the CPU fault Just replace new one
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