DESCRIPTION This DTC is detected when a short to B+ is detected in the transfer shift motor drive circuit.
WIRING DIAGRAM Refer to DTCs P17A8 and P17A9 (See page ). PROCEDURE
(a) Disconnect the 4 wheel drive control ECU connector. (b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
(a) Disconnect the A26 4 wheel drive control ECU connector. (b) Disconnect the D67 transfer shift actuator assembly connector. (c) Measure the voltage according to the value(s) in the table below. Standard Voltage:
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Toyota Tundra Service Manual > Sfi System: Secondary Air Injection System Switching Valve "A" Circuit (P0412,P0415)
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 ...