Lexus ES: System Diagram
SYSTEM DIAGRAM
READ NEXT:
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
*: Use the Techstream
Use the following procedure to troubleshoot the hybrid battery system.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT
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
Utility
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
SEE MORE:
Front Sensor Communication Malfunction (C1AEC)
DESCRIPTION This DTC is stored when there is an open or short circuit in the communication line between the front sensors and the ECU, or when there is a malfunction in a front sensor. DTC No. Detection Item DTC Detection Condition Trouble Area C1AEC Front Sensor Communication Malfunc
IGB Signal Circuit Short to Auxiliary Battery (P1CFA12)
DESCRIPTION The hybrid vehicle control ECU monitors the IGB signal received from the certification ECU (smart key ECU assembly). When an error is detected in the IGB signal, this DTC is stored. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P1CFA12
© 2016-2025 Copyright www.lexguide.net
