B221F

B221F-AMPLIFIER INTERNAL



- When Monitored:
With the ignition on.

- Set Condition:
The Amplifier detects a fault during an internal diagnostic check.





REPLACE THE AMPLIFIER IF DTC IS ACTIVE
1. With the scan tool, read the active DTCs.
2. Cycle the ignition switch from off to on.
3. With the scan tool, read the active DTCs.

Does the scan tool display this DTC as active?

Yes

- Replace the Amplifier.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.