LF Control Unit Inspection (Us): Notes
WARNING: This page is about a different car, the 2021 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
- Remove the front side trim. (See LF CONTROL UNIT REMOVAL/INSTALLATION .)
- Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
- Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (See TERMINAL VOLTAGE TABLE (REFERENCE) .)
- If the voltage is not as specified in the terminal voltage table (See TERMINAL VOLTAGE TABLE (REFERENCE) .), inspect the parts under Inspection item(s).
- If the system does not work normally even though the inspection items are normal, replace the LF control unit.
- If the voltage is not as specified in the terminal voltage table (See TERMINAL VOLTAGE TABLE (REFERENCE) .), inspect the parts under Inspection item(s).