DTC B1087:88 [FRONT BODY CONTROL MODULE (FBCM)]

id0902p2006700

System malfunction location

LIN communication error

Detection condition

•  LIN bus communication line malfunction detected for 1 s or more

Fail-safe

—

Possible cause

•  Malfunction in LIN bus communication line

•  Front body control module (FBCM) malfunction

System wiring diagram

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System malfunction location	LIN communication error
Detection condition	• LIN bus communication line malfunction detected for 1 s or more
Fail-safe	—
Possible cause	• Malfunction in LIN bus communication line • 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 1 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 DTC B1087:88 displayed?	Yes	A malfunction in LIN bus communication line can be considered. • Repair or replace the wiring harness between the DC-DC converter and front body control module (FBCM), then go to the next step. • Repair or replace the wiring harness between the current sensor and front body control module (FBCM), then go to the next step.
1		No	Go to Step 3.
2	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 1 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 DTC B1087:88 displayed?	Yes	Replace the front body control module (FBCM), then go to the next step. (See FRONT BODY CONTROL MODULE (FBCM) REMOVAL/INSTALLATION.)
2		No	Go to the next step.
3	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)].)
3		No	DTC troubleshooting completed.