On-vehicle Inspection ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT FOG LIGHT RELAY (a) Remove the fog light relay from the engine room relay box.
(c) Install the fog light relay to the engine room relay box. |
Toyota Tundra Service Manual > Sfi System: Secondary Air Injection System Air Flow / Pressure Sensor Circuit Range / Performance Bank1 (P2431-P2433,P2436-P2438)
DESCRIPTION The Secondary Air Injection (AIR) system consists of an air pump, the Air Switching Valve (ASV), a pressure sensor, the Air Injection Control Driver (AID) and the ECM. For a short time after a cold engine start, the AIR system pumps secondary air to the exhaust port of the cylinder head ...