Page 259 - Mechanic Diesel - TT

MECHANIC DIESEL - CITS

3 Worn-out wafers
Wafers are the design or pattern inside the ignition switch that complies with the key patterns to start an engine.
They come in three different sizes to match three different depths or cuts of the key. In an old or bad ignition
switch, wafers may get jammed or worn out, which causes trouble in key movement and engine start.

4 Push start switch not working
New vehicles have a push ignition switch which comes with its own issues. The electrical ignition system can
encounter defective transponder problems. In this, the transponder fails to recognize the key or fob and the
engine will not start. It is usually due to a physical hit or when a potential attempt is made to hack the transponder.

PUSH START IGNITION

246

CITS : Automotive - Mechanic Diesel - Lesson 76 - 79