Circuit/System Verification
- Verify no DTCs are present.
- If any DTCs are present.
Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If no DTCs are present.
- If any DTCs are present.
- Ignition ON, A11 radio ON.
- Verify that all radio controls operate and perform the correct function.
- If some, but not all, controls operate normally.
Replace the A22 radio controls.
- If all controls are inoperative.
Refer to Circuit/System Testing
- If all radio controls operate and perform the correct function.
- If some, but not all, controls operate normally.
- All OK.