Lexus ES manuals

Lexus ES: Blind Spot Monitor Beam Axis Inspection Incomplete (C1AF9)

DESCRIPTION

This DTC is stored when the clearance warning ECU assembly receives a signal from the blind spot monitor system via CAN communication indicating that the beam axis inspection is incomplete.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1AF9

Blind Spot Monitor Beam Axis Inspection Incomplete

The clearance warning ECU assembly receives a signal indicating that the beam axis inspection is incomplete.

Blind spot monitor system

PROCEDURE

1.

CHECK FOR DTC

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

HINT:

After turning the engine 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 C1AF9 is stored when a malfunction signal sent from the blind spot monitor system is detected.
  • If the malfunctioning part has been repaired or replaced before rechecking for DTCs, DTC C1AF9 will not be output again.
  • If DTC C1AF9 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 C1AF9 is output

A

DTC C1AF9 is not output

B

A

GO TO BLIND SPOT MONITOR SYSTEM

B

USE SIMULATION METHOD TO CHECK

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