Lexus ES: Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS
CHECK FOR INTERMITTENT PROBLEMS
(a) Perform a simulation test.
(1) For the simulation test, reproduce the driving conditions that were present when the problem occurred. These conditions should be based on the customer's comments and freeze frame data that is recorded with DTCs, such as the opening angle of the accelerator pedal, SOC (state of charge), engine coolant temperature, engine speed, and generator (MG1) / motor (MG2) rpm and torque.
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(b) Check the connector(s) and terminal(s).
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(c) Wiggle the harness and connector(s).
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(d) Heat or cool suspected parts.
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UTILITY NOTICE:
If the HV battery or an HV supply stack sub-assembly has been replaced, make sure to perform the following utilities in the following order: "Battery Status Info Update", "Prediagno
PROBLEM SYMPTOMS TABLE Hybrid Battery System Symptom Suspected Area Link "Maintenance Required for Traction Battery Cooling Parts See Owner's Manual" is displayed on the multi-information d
TERMINALS OF ECU *1 Battery ECU assembly - - Terminal No. (Symbols) Wiring Color Input/Output Terminal Description Condition Specified Condition y16-1 (AM) - y16-27 (GND)
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DESCRIPTION When a communication malfunction is detected between the forward recognition camera and an ECU or sensor, a DTC is stored. DTC No. Detection Item DTC Detection Condition Trouble Area U010087 Lost Communication with ECM/PCM "A" Missing Message 2 seconds after the engine s
DIAGNOSIS SYSTEM PARKING ASSIST MONITOR SYSTEM DIAGNOSTIC MODE (a) In diagnostic mode for the parking assist monitor system, signals received by the radio receiver assembly can be checked and the parking assist monitor system can be calibrated, adjusted and checked using the multi-display assembly.
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