B221F

B221F - Amplifier Internal

For a complete wiring diagram, refer to.

• When Monitored: With the ignition on.

• Set Condition: The amplifier detects a software checksum test failure.






Test Step 1 - Replace the Amplifier

• When this code is set, the amplifier must be replaced.



Repair

• Replace the amplifier.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior