FALSE DETECTION/INCORRECT DISPLAY OF TRAFFIC SIGN [TRAFFIC SIGN RECOGNITION SYSTEM (TSR)]

id1503b6029500

Note

• Due to environmental effects, the system behavior may differ from the driver’s intentions even though the vehicle has no malfunction. To perform symptom troubleshooting, an understanding of the applicable system from the new vehicle instruction is required. For details on the control conditions of the system, refer to the [TRAFFIC SIGN RECOGNITION SYSTEM (TSR)] operation in the service highlights/technical guide.

Outline

Description

•  False detection/incorrect display of the traffic sign while the vehicle is being driven.

•  The traffic sign indicated on the active driving display or instrument cluster is not updated.

Possible cause

•  Speed limit information from SD card is incorrect

•  Connectivity master unit (CMU) malfunction

•  BCM malfunction

•  Active driving display malfunction

•  Instrument cluster malfunction

•  Forward sensing camera (FSC) malfunction

•  Forward sensing camera (FSC) optical axis deviation

Diagnostic Procedure

Step

Inspection

Action

1

VERIFY ALL SYSTEM DTCs

•  Perform the DTC inspection.
(See DTC INSPECTION.)

•  Are any DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

Go to the next step.

2

VERIFY IF SD CARD IS VALID

•  Perform diagnostic assist function “Storage Diagnostic Test” MAP Areas.
(Refer to the [DIAGNOSTIC ASSIST FUNCTION] in the workshop manual)

•  Is the part normal?

Yes

Go to the next step.

No

Explain to the customer that the SD card is not valid.

Repair completion verification

VERIFY THAT VEHICLE IS REPAIRED

•  Install/connect the part removed/disconnected during the troubleshooting procedure.

•  Has the malfunction symptom been eliminated?

Yes

Complete the symptom troubleshooting. (Explain contents of repair to customer)

No

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)

If the CAN communication is normal, perform the diagnosis from Step 1.

•  If the malfunction is not resolved, replace the forward sensing camera (FSC).
(See FORWARD SENSING CAMERA (FSC) REMOVAL/INSTALLATION.)

Description	• False detection/incorrect display of the traffic sign while the vehicle is being driven. • The traffic sign indicated on the active driving display or instrument cluster is not updated.
Possible cause	• Speed limit information from SD card is incorrect • Connectivity master unit (CMU) malfunction • BCM malfunction • Active driving display malfunction • Instrument cluster malfunction • Forward sensing camera (FSC) malfunction • Forward sensing camera (FSC) optical axis deviation

Step	Inspection		Action
1	VERIFY ALL SYSTEM DTCs • Perform the DTC inspection. (See DTC INSPECTION.) • Are any DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
1		No	Go to the next step.
2	VERIFY IF SD CARD IS VALID • Perform diagnostic assist function “Storage Diagnostic Test” MAP Areas. (Refer to the [DIAGNOSTIC ASSIST FUNCTION] in the workshop manual) • Is the part normal?	Yes	Go to the next step.
2		No	Explain to the customer that the SD card is not valid.
Repair completion verification	VERIFY THAT VEHICLE IS REPAIRED • Install/connect the part removed/disconnected during the troubleshooting procedure. • Has the malfunction symptom been eliminated?	Yes	Complete the symptom troubleshooting. (Explain contents of repair to customer)
Repair completion verification		No	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) If the CAN communication is normal, perform the diagnosis from Step 1. • If the malfunction is not resolved, replace the forward sensing camera (FSC). (See FORWARD SENSING CAMERA (FSC) REMOVAL/INSTALLATION.)