JBL 9-Speaker Amplifier · 2019 Toyota Camry · serial URTO055000013
Customer reports multiple unrelated faults, intermittent bus errors.
Connector corrosion from water ingress. Bench evidence: Green corrosion on C3 pins 4-9, 40 ohm leakage to ground. Component located at U3 output IC.
No technician observations
All bench tests passed with nominal notes.
No parts replaced.