CAL Automotive Locksmith Ignition System Repair & Replacement 2

Question 1

When an ignition switch is worn and causes the vehicle to stall while driving, which component is most likely failing?

Accepted Answer

The electrical ignition switch

Answer

The electrical ignition switch maintains power to the engine's run circuit, and wear can cause intermittent power loss leading to stalls.

Question 2

A customer reports their transponder key starts the car only when held at a specific angle near the ignition. What is the most likely cause?

Accepted Answer

Damaged transponder antenna ring

Answer

A damaged or partially broken antenna ring creates dead spots that require the key to be positioned precisely to achieve proper transponder communication.

Question 3

Which ignition system component is responsible for converting low-voltage battery current into the high-voltage spark needed for combustion?

Accepted Answer

Ignition coil

Answer

The ignition coil acts as a step-up transformer, converting 12V battery voltage into the thousands of volts required to jump the spark plug gap.

Question 4

When replacing an ignition lock cylinder on a column-shift vehicle, why must the gear selector be in PARK before removal?

Accepted Answer

To allow access to the release tab or pin

Answer

Most column-shift vehicles have a park interlock that positions a release tab or pin access hole used to depress and remove the lock cylinder.

Question 5

A 2012 Ford F-150 requires ignition lock cylinder replacement. The new cylinder must be?

Accepted Answer

Installed first, then keys cut and programmed

Answer

On most Ford vehicles with PATS, the new mechanical cylinder is installed first, then keys are cut to match and transponders are programmed to the existing PCM.

(CAL) Certified Automotive Locksmith Practice Test

(CAL) Certified Automotive Locksmith Practice Test

CAL Automotive Locksmith Ignition System Repair & Replacement 2