DTC Description

DTC DETECTION LOGIC

DTC No.		M.U.T.-III SE screen terms (Trouble diagnosis content)	DTC detection condition
C1086	86	CAN comm err (BCM) [Controller area network communication error (body control module)]	Diagnosis condition	When electric motor switch is ON. When the power supply voltage is normal.
			Signal (terminal)	CAN communication signal
			Threshold	When a malfunction is detected in BCM system.
			Diagnosis delay time	2 seconds or less

POSSIBLE CAUSE

note	Confirm if DTC is Stored DTC or Active DTC. If DTC is Active DTC, proceed with Diagnosis Procedure. If DTC is Stored DTC, clear DTC. Do not replace the ABS actuator and electric unit (control unit) for a Stored DTC DTC.

Stored DTC DTC	Active DTC DTC
Harness or connector CAN communication line ABS actuator and electric unit (control unit) power supply system Fuse Fusible link 12V battery	Harness or connector CAN communication line BCM ABS actuator and electric unit (control unit) ABS actuator and electric unit (control unit) power supply system Fuse Fusible link 12V battery

FAIL-SAFE

Normal control

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE" has been previously conducted, always electric motor switch OFF (Auto ACC function OFF) before conducting the next test.

2.CHECK DTC DETECTION

With M.U.T.-III SE

Electric motor switch OFF (Auto ACC function OFF).
Electric motor switch ON.
note Wait at least 10 seconds after electric motor switch ON.
Perform Diagnostic Trouble Code for “ABS".

Is DTC “C1086-86" detected?

-1“Active DTC" is displayed: Refer to Diagnosis Procedure

-2“Stored DTC" is displayed: INSPECTION END (Erase the memory of Diagnostic Trouble Code results.)

-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident

-2Confirmation after repair: INSPECTION END