DTC B1C79:97 [FRONT BODY CONTROL MODULE (FBCM)]

id0902p2009100

System malfunction location

Washer motor switch circuit malfunction

Detection condition

•  The front body control module (FBCM) detects a malfunction in the washer motor switch circuit for 2 min or more with the ignition switched ON (engine off or on).

Fail-safe

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Possible cause

•  Start stop unit malfunction

•  Wiper switch malfunction

•  Front body control module (FBCM) malfunction

System wiring diagram

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System malfunction location	Washer motor switch circuit malfunction
Detection condition	• The front body control module (FBCM) detects a malfunction in the washer motor switch circuit for 2 min or more with the ignition switched ON (engine off or on).
Fail-safe	—
Possible cause	• Start stop unit malfunction • Wiper switch 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 2 min 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 B1C79:97 displayed?	Yes	Go to the next step.
1		No	Go to Step 4.
2	INSPECT WIPER SWITCH • Inspect the wiper switch. (See WINDSHIELD WIPER AND WASHER SWITCH INSPECTION.) • Is the wiper switch normal?	Yes	Replace the start stop unit, then go to the next step. (See START STOP UNIT REMOVAL/INSTALLATION.)
2		No	Replace the wiper and washer switch, then go to the next step. (See WIPER AND WASHER SWITCH REMOVAL/INSTALLATION.)
3	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 2 min 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 B1C79:97 displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the front body control module (FBCM), then go to the next step. (See FRONT BODY CONTROL MODULE (FBCM) REMOVAL/INSTALLATION.)
3		No	Go to the next step.
4	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)].)
4		No	DTC troubleshooting completed.