CAL Automotive Locksmith Ignition System Repair & Replacement 3

Question 1

On a vehicle with a PassLock system, the ignition lock cylinder is replaced but the engine cranks without starting. What is the next required step?

Accepted Answer

Perform a PassLock relearn procedure

Answer

PassLock uses a resistance sensor in the lock cylinder; a new cylinder requires a relearn (typically a 10-minute learn cycle) so the BCM accepts the new sensor's value.

Question 2

A locksmith is asked to rekey an ignition to match door locks on a vehicle where the ignition uses a sidebar-style lock. What additional step is required compared to a standard pin tumbler?

Accepted Answer

Sidebar wafers must also be reconfigured to match the new bitting

Answer

Sidebar locks have a secondary set of sidebar wafers that must be reconfigured alongside the main pins/discs to allow the sidebar to retract and the cylinder to turn.

Question 3

Which of the following best describes 'ignition cylinder indexing'?

Accepted Answer

Aligning the cylinder's cam or drive tab to match the ignition switch drive

Answer

Indexing ensures the cylinder's output cam or tang is correctly oriented so it properly engages and operates the ignition switch during installation.

Question 4

A customer's vehicle shows a 'No Start' condition with no crank. The key turns freely with no resistance. What ignition component has likely failed?

Accepted Answer

Ignition electrical switch not engaging START circuit

Answer

If the key turns freely without the expected resistance of moving a working electrical switch, the switch mechanism has failed and is not completing the starter circuit.

Question 5

When drilling out a damaged ignition lock cylinder, at what component must the locksmith stop drilling to avoid further damage?

Accepted Answer

The ignition electrical switch assembly

Answer

Drilling must be stopped at the back of the lock housing to avoid destroying the ignition electrical switch assembly, which would require additional replacement.

(CAL) Certified Automotive Locksmith Practice Test

(CAL) Certified Automotive Locksmith Practice Test

CAL Automotive Locksmith Ignition System Repair & Replacement 3