DTC U053B:68 [FRONT BODY CONTROL MODULE (FBCM)]

id0902p2010800

System malfunction location

Error signal received from forward sensing camera (FSC)

Detection condition

•  The front body control module (FBCM) receives error signals from the forward sensing camera (FSC) for 5 s or more with the ignition switched ON (engine off or on).

Fail-safe

—

Possible cause

•  Forward sensing camera (FSC) malfunction

•  Front body control module (FBCM) malfunction

System wiring diagram

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System malfunction location	Error signal received from forward sensing camera (FSC)
Detection condition	• The front body control module (FBCM) receives error signals from the forward sensing camera (FSC) for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe	—
Possible cause	• Forward sensing camera (FSC) malfunction • Front body control module (FBCM) malfunction
System wiring diagram	—

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY FRONT BODY CONTROL MODULE (FBCM) DTCs AGAIN • Clear front body control module (FBCM) DTCs using the M-MDS. (See CLEARING DTC [FRONT BODY CONTROL MODULE (FBCM)].) • Switch the ignition ON (engine off or on) and wait for 5 s or more. • Perform the front body control module (FBCM) DTC inspection using the M-MDS. (See DTC INSPECTION [FRONT BODY CONTROL MODULE (FBCM)].) • Is the DTC U053B:68 displayed?	Yes	Go to the next step.
1		No	Go to Step 5.
2	VERIFY FORWARD SENSING CAMERA (FSC) DTCs • Perform the DTC inspection for the forward sensing camera (FSC) using the M-MDS. (See DTC INSPECTION [FORWARD SENSING CAMERA (FSC)].) • Is the DTC displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [FORWARD SENSING CAMERA (FSC)].)
2		No	Go to the next step.
3	PERFORM DTC INSPECTION AND VERIFY IF MALFUNCTIONING PART IS FORWARD SENSING CAMERA (FSC) • Clear front body control module (FBCM) DTCs using the M-MDS. (See CLEARING DTC [FRONT BODY CONTROL MODULE (FBCM)].) • Switch the ignition ON (engine off or on) and wait for 5 s or more. • Perform the front body control module (FBCM) DTC inspection using the M-MDS. (See DTC INSPECTION [FRONT BODY CONTROL MODULE (FBCM)].) • Is the DTC U053B:68 displayed?	Yes	Replace the forward sensing camera (FSC), then go to the next step. (See FORWARD SENSING CAMERA (FSC) REMOVAL/INSTALLATION.)
3		No	Go to Step 5.
4	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Clear front body control module (FBCM) DTCs using the M-MDS. (See CLEARING DTC [FRONT BODY CONTROL MODULE (FBCM)].) • Switch the ignition ON (engine off or on) and wait for 5 s or more. • Perform the front body control module (FBCM) DTC inspection using the M-MDS. (See DTC INSPECTION [FRONT BODY CONTROL MODULE (FBCM)].) • Is the DTC U053B:68 displayed?	Yes	replace the front body control module (FBCM), then go to the next step. (See FRONT BODY CONTROL MODULE (FBCM) REMOVAL/INSTALLATION.)
4		No	Go to the next step.
5	VERIFY IF OTHER DTCs DISPLAYED • Are any other DTCs displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [FRONT BODY CONTROL MODULE (FBCM)].)
5		No	DTC troubleshooting completed.