DESCRIPTION There may be an open circuit in one of the CAN main bus lines when the resistance between terminals 18 (CA4H) and 17 (CA4L) of the central gateway ECU (network gateway ECU) is 70 Ω or higher.
WIRING DIAGRAM ![]() CAUTION / NOTICE / HINT CAUTION: When performing the confirmation driving pattern, obey all speed limits and traffic laws. NOTICE:
HINT:
PROCEDURE
(a) Disconnect the cable from the negative (-) battery terminal.
(c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) Reconnect the J169 central gateway ECU (network gateway ECU) connector.
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance: for 1UR-FE
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Toyota Tundra Service Manual > Automatic Transmission System: Output Speed Sensor Circuit No Signal (P0722)
DESCRIPTION The speed sensor SP2 detects the rotation speed of the transmission output shaft and sends signals to the ECM. The ECM determines the vehicle speed based on these signals. An AC voltage is generated in the speed sensor SP2 coil as the parking gear mounted on the rear planetary gear assem ...