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 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 CodesHINT:
- 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
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| 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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Installation
INSTALLATION PROCEDURE 1. INSTALL CLEARANCE WARNING ECU ASSEMBLY (a) Engage the claw to install the clearance warning ECU assembly as shown in the illustration. Install in this Direction 2. INSTALL ECU INTEGRATION BOX RH Click here 3. INSTALL GLOVE COMPARTMENT DOOR ASSEMBLY Click here
Removal
REMOVAL PROCEDURE 1. REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY Click here 2. REMOVE ACCELERATOR PEDAL(W/SENSOR) ROD ASSEMBLY NOTICE:
Avoid physical shock to the accelerator pedal sensor assembly.
Do not disassemble the accelerator pedal sensor assembly.
The accelerator pedal s
