TROUBLE DIAGNOSES — Diagnostic Procedure 1 — Pedal vibration and noise
BR-50flowchartDiagnostic Procedure 1
IMPORTANT
Refer to worksheet results.
Diagnostic Procedure 1 — Pedal vibration and noise
1
Check whether brake is applied suddenly in normal driving conditions.
Yes
When brake is normally applied, A.B.S. works and produces pedal vibration or noise.
No
2
Check whether the symptom appeared when engine is started.
Yes
Refer to Preliminary Check 4 result.
No
3
Check whether the symptom appeared when the vehicle speed is within 10 km/h (6 MPH) after starting engine.
Yes
Check whether the symptom disappeared within 5 seconds.
No
4
Check whether the symptom appeared while the vehicle was driven.
No → (A)
Go to (A) — return to top.
Yes
5
Check whether brake is applied gradually.
No
Check if there were any conditions, among those listed below, when symptom appeared: Low friction road; High speed cornering; Passing protrusion.
Yes
6
Check if there were any conditions, among those listed below, when symptom appeared: Shifting; Operating clutch; Passing protrusion.
No → (A)
same as step 4
Yes
7
For such condition, if there is considerable wheel speed variation and, A.B.S. will work normally.