DTC C1A4A: Skid Control Buzzer Circuit [08/2014 - ]: Procedure
- PERFORM ACTIVE TEST USING TECHSTREAM (SKID CONTROL BUZZER)
- Select the Active Test, use the Techstream to generate a control command, then check that the skid control buzzer sounds (Refer to Data List / Active Test [08/2014 - ]
).CHASSIS/ABS/VSC/TRAC
Tester Display Test Part Control Range Diagnostic Note Buzzer Skid control buzzer sounds ON/OFF - OK
Skid control buzzer sounds.
Result: NG
NG
GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM
(Refer to How To Proceed With Troubleshooting [08/2014 - ] )
Result: OK
OK
Refer to 2
- Select the Active Test, use the Techstream to generate a control command, then check that the skid control buzzer sounds (Refer to Data List / Active Test [08/2014 - ]
).
- REPLACE BRAKE BOOSTER WITH MASTER CYLINDER
- Replace the brake booster with master cylinder (skid control ECU) (Refer to Removal [08/2014 - ] ).
Result: NEXT
NEXT
Refer to 3
- CHECK DTC OUTPUT (PRE-COLLISION SYSTEM)
- Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.
- Clear the DTCs (Refer to DTC Check / Clear [08/2014 - ] ).
- Recheck for DTCs.
OK
DTC C1A4A is not output.
Result: OK
OK
END (SKID CONTROL ECU ASSEMBLY WAS DEFECTIVE)
Result: NG
NG
REPLACE DRIVING SUPPORT ECU
(Refer to Removal [08/2014 - ] )