DTC B1008:02 [FRONT BODY CONTROL MODULE (FBCM)]

Description	Windshield wiper control signal mismatch
Detection condition	• Front body control module (FBCM) receives the error signals from the start stop unit with the ignition switched ON (engine off or on).
Fail-safe function	• If the front body control module (FBCM) cannot receive a windshield wiper switch position signal because of a malfunction in the start stop unit or a CAN communication error between the start stop unit, or if it detects an error in the windshield wiper switch position signal, it continues the control before detecting the malfunction. However, if the driver operates the wiper and washer switch, it controls as follows: ― When the front body control module (FBCM) detects LO/HI ON using the LO/HI detection function: The windshield wipers are operated at low speed. ― When the front body control module (FBCM) detects LO/HI OFF using the LO/HI detection function: The windshield wipers are stopped at the park position.
Possible cause	• Start stop unit malfunction • Front body control module (FBCM) malfunction
System wiring diagram	Not applicable

Description

Windshield wiper control signal mismatch

Detection condition

• Front body control module (FBCM) receives the error signals from the start stop unit with the ignition switched ON (engine off or on).

Fail-safe function

• If the front body control module (FBCM) cannot receive a windshield wiper switch position signal because of a malfunction in the start stop unit or a CAN communication error between the start stop unit, or if it detects an error in the windshield wiper switch position signal, it continues the control before detecting the malfunction. However, if the driver operates the wiper and washer switch, it controls as follows:

― When the front body control module (FBCM) detects LO/HI ON using the LO/HI detection function: The windshield wipers are operated at low speed.

― When the front body control module (FBCM) detects LO/HI OFF using the LO/HI detection function: The windshield wipers are stopped at the park position.

Possible cause

• Start stop unit malfunction

• Front body control module (FBCM) malfunction

System wiring diagram

Not applicable

Step	Inspection	Action
1	PERFORM DTC INSPECTION AND VERIFY START STOP UNIT MALFUNCTION • Clear the DTC for the front body control module (FBCM) using the M-MDS. (See CLEARING DTC [FRONT BODY CONTROL MODULE (FBCM)].) • Retrieve the front body control module (FBCM) DTCs using the M-MDS. (See DTC INSPECTION [FRONT BODY CONTROL MODULE (FBCM)].) • Is the same DTC displayed?	Yes	Replace the start stop unit, then go to the next step. (See START STOP UNIT REMOVAL/INSTALLATION.)
No	Go to Step 3.
2	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Clear the front body control module (FBCM) DTCs using the M-MDS. (See CLEARING DTC [FRONT BODY CONTROL MODULE (FBCM)].) • Retrieve the front body control module (FBCM) DTCs using the M-MDS. (See DTC INSPECTION [FRONT BODY CONTROL MODULE (FBCM)].) • Is the same DTC displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the front body control module (FBCM). (See FRONT BODY CONTROL MODULE (FBCM) REMOVAL/INSTALLATION.) 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.

Step

Inspection

Action

PERFORM DTC INSPECTION AND VERIFY START STOP UNIT MALFUNCTION

• Clear the DTC for the front body control module (FBCM) using the M-MDS.

(See CLEARING DTC [FRONT BODY CONTROL MODULE (FBCM)].)

• Retrieve the front body control module (FBCM) DTCs using the M-MDS.

(See DTC INSPECTION [FRONT BODY CONTROL MODULE (FBCM)].)

• Is the same DTC displayed?

Yes

Replace the start stop unit, then go to the next step.

(See START STOP UNIT REMOVAL/INSTALLATION.)