Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Data Bus On Board Diagnostic Interface
Removing
-- If the control module was replaced, select the Replace function for the respective control module in Guided Fault Finding or Guided Functions.
-- Select the function or path
| Vehicle brand | |||||
| Engine codes | |||||
| 19 - Diagnose interface for data bus | |||||
| J533 - replacing the diagnosis interface for the data bus (Repair Group 90) | |||||
-- Follow the instructions on the Vehicle Diagnosis Tester display.
-- Switch off ignition and remove ignition key.
-- Remove driver's storage compartment. Refer to Removal and Installation .
-- Remove the screw -arrow- and then remove the air guide -1-.
-- Release retaining clips -1- and -6- by pressing them together -arrows-.
-- Disengage retaining tab -2- on bracket -3-.
-- Disconnect the connector -4- and remove the data bus on board diagnostic interface -J533- -item 5-.
Installing
Install in reverse order of removal, noting the following:
If the data bus on board diagnostic interface was replace, it must be coded again.
-- Select the function or path
| Vehicle brand | |||||
| Engine codes | |||||
| 19 - Diagnose interface for data bus | |||||
| J533 - Diagnosis interface for data bus, coding | |||||
-- Follow the instructions on the Vehicle Diagnosis Tester display.
-- Install air duct. Refer to Removal and Installation or Removal and Installation .
-- Install driver's storage compartment. Refer to Removal and Installation .
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.