DESCRIPTION This DTC is output when a malfunction has occurred in the engine pulse signal system from the ECM.
HINT: *: Malfunction monitoring is not performed under the following conditions, in order to prevent erroneous detection.
WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Refer to when replacing the ECM. PROCEDURE
(a) Clear the DTCs. Body Electrical > Active Noise Control > Clear DTCs
(a) Check for DTCs. Body Electrical > Active Noise Control > Trouble CodesOK: DTC P033531 is not output.
(a) Disconnect the G68 stereo component equalizer assembly connector. (b) Disconnect the A18 ECM connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
(a) According to the table and using an oscilloscope, measure the waveform with the stereo component equalizer assembly connected.
OK: The waveform is similar to that shown in the illustration. HINT: The oscilloscope waveform shown in the illustration is an example for reference only. The waveform fluctuates according to engine speed.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Dynamic Radar Cruise Control System(for Hv Model): Terminals Of Ecu
TERMINALS OF ECU CHECK DRIVING SUPPORT ECU ASSEMBLY NOTICE: Do not apply excessive force to the connector. If a force of 10 kg or more is applied, the connector may be broken. (a) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Term ...