2002 Toyota Sienna Repair Question
Asked on February 15, 2011
P1155 fault code
Where is af relay 02 sienna
Asked by kmfAnswer
Replied on February 16, 2011
A p1155 (A/F Sensor Heater Circuit Malfunction
(Bank 2 Sensor 1)....generally is repaired by replacing the a/f sensor...It is the sensor that is located closest to the right head in the exhaust system (the head that is closest to the firewall..