DTC B1088:88 [FRONT BODY CONTROL MODULE (FBCM)]

id0902p2006800

Description

LIN communication error
Detection condition
•  LIN bus communication line malfunction detected for 1 s or more
Fail-safe function
Not applicable
Possible cause
•  Malfunction in LIN bus communication line
•  Front body control module (FBCM) malfunction
System wiring diagram
Not applicable

Diagnostic Procedure

Step

Inspection

Action
1
VERIFY FRONT BODY CONTROL MODULE (FBCM) DTCs AGAIN
•  Clear the DTC for the front body control module (FBCM) using the M-MDS.
•  Switch the ignition ON (engine off or on) and wait for 1 s or more.
•  Retrieve the front body control module (FBCM) DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
LIN communication line can be considered the cause.
•  Refer to the wiring diagram and verify whether or not there is a common connector between auto light sensor/rain sensor terminal A and front body control module (FBCM) terminal 2G.
If there is a common connector:
―  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a malfunction.
―  Repair or replace the malfunctioning part.
If there is no common connector:
―  Repair or replace the wiring harness.
•  Go to the next step.
No
Go to Step 3.
2
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Clear the DTC for the front body control module (FBCM) using the M-MDS.
•  Switch the ignition ON (engine off or on) and wait for 1 s or more.
•  Retrieve the front body control module (FBCM) DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the front body control module (FBCM).
Go to the next step.
No
Go to the next step.
3
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [FRONT BODY CONTROL MODULE (FBCM)].)
No
DTC troubleshooting completed.