Symptoms:
Speedometer reading zero.
ABS + traction lights on @or a specific speed or erratic
possible limp mode
In this case, garages found it impossible to diagnose & fix but the faults I found were:
i. VSS not reporting a vehicle speed, because had gathered iron filings (from gear box wear) confusing sensor readings.
ii. front right ABS sensor erratic: often wiring behind headlight or simply dead/dying sensor.
iii. erratic & total/various dashboard: alleged due to PCB soldering breaks or back of ignition switch failure (easy cheap replacement, leaving original key ignition lock in place)
iv. rear tyres were replaced from factory 215/75 to 215/65. Any circumference change requires parallel change to data via ForScan (documented elsewhere on net)
Diamond feature showing reason for VSS failure.
DIY tool made to remove crankshaft position sensor VSS Ford OEN BK21-6C351- AA
'AA' can be AB AC DA DD etc. (for RWD transits where VSS is on top of gearbox and can hardly be seen without mirrors. Unlike other VSS units, this sensor (RWD transit) can just be dropped into place without adjustment to 1mm to magnetic ring.
Негізгі бет Ford Transit MK6 MK7 MK8 2.2l 2.4l RWD Vehicle Speed Sensor VSS Replacement Part #4
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