Lexus ES manuals

Lexus ES: ENG / EHV Device (C1A40)

DESCRIPTION

When a SFI system malfunction signal sent by the hybrid vehicle control ECU is detected by the clearance warning ECU assembly, DTC C1A40 is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1A40

ENG / EHV Device

When the power switch on (IG), a SFI system malfunction signal is detected for 1 second or more.

  • SFI system
  • Clearance warning ECU assembly

CAUTION / NOTICE / HINT

NOTICE:

  • After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

    Click here

  • After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).

    Click here

PROCEDURE

1.

CHECK DTC OUTPUT

(a) Using the Techstream, check for DTCs according to the prompts on the screen.

HINT:

After turning the power switch from off to on (IG), wait 4 seconds or more before checking for DTCs.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes

(b) Clear the DTCs according to the screen on the Techstream.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs

(c) Recheck for DTCs.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes

HINT:

  • DTC C1A40 is stored when a malfunction signal sent from the EFI system is detected.
  • If the malfunctioning part has been repaired or replaced before rechecking for DTCs, DTC C1A40 will not be output again.
  • If DTC C1A40 is output frequently, duplicate the conditions that cause the problem symptoms and perform troubleshooting again, even though the DTC was not output when rechecking for DTCs.

    Click here

Result

Proceed to

DTC C1A40 is output

A

DTC C1A40 is not output

B

A

GO TO HYBRID CONTROL SYSTEM

B

USE SIMULATION METHOD TO CHECK

READ NEXT:

 ENG / EHV Device (C1A40)

DESCRIPTION When a SFI system malfunction signal sent by the hybrid vehicle control ECU is detected by the clearance warning ECU assembly, DTC C1A40 is stored. DTC No. Detection Item DTC Detect

 Brake System (C1A50)

DESCRIPTION When an electronically controlled brake system malfunction signal sent from the skid control ECU is detected by the clearance warning ECU assembly, DTC C1A50 is stored. DTC No. Detect

 Steering Angle Midpoint Initial Setting Incomplete (C1AEA)

DESCRIPTION When the clearance warning ECU assembly detects that the steering angle neutral point memorization is incomplete during self diagnosis, C1AEA is stored. DTC No. Detection Item DTC D

SEE MORE:

 Installation

INSTALLATION CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The following procedure is for the LH side. PROCEDURE 1. INSTALL REAR UPPER COIL SPRING INSULATOR (a) Install the rear upper coil spring insulator to the vehicle. 2. INSTALL REAR LOWER COIL SPRING

 Front Camera Internal Circuit (C2A60)

DESCRIPTION This DTC is stored when the parking assist ECU detects a signal indicating a malfunction in the front television camera assembly via CAN communication. DTC No. Detection Item DTC Detection Condition Trouble Area C2A60 Front Camera Internal Circuit A signal indicating a m

© 2016-2024 Copyright www.lexguide.net