CAL — Certified Automotive Locksmith — Questions and Answers

Question 1: On a vehicle with a power door lock system, the customer's key fob battery is dead and the keys are inside. What is typically the fastest non-destructive entry method?

Replace the battery through the door panel
Call the manufacturer's roadside assistance only
Reprogram a new fob on the spot
Use a wedge and long-reach tool to unlock the door (Correct answer)

Correct answer: Use a wedge and long-reach tool to unlock the door

Using an air wedge and long-reach tool to manually press the interior unlock button or pull the handle is the fastest non-destructive solution for this scenario.

Question 2: When using an automotive OBDII key programmer, which of the following data is typically required for a 'add key' procedure on a modern vehicle?

Only the VIN number
A working key, the VIN, and often a dealer-level PIN or security code (Correct answer)
The key blank manufacturer's catalog number
The vehicle's radio unlock code and mileage

Correct answer: A working key, the VIN, and often a dealer-level PIN or security code

Most modern add-key procedures require at least one working key for authentication, plus the VIN and a security PIN to authorize new key enrollment.

Question 3: A 'key blank identifier' reference guide or software is used by automotive locksmiths to:

Program transponder chips via Bluetooth connection
Decode the immobilizer PIN code for a vehicle
Test the cutting accuracy of a key duplicating machine
Determine which key blade profile (blank) is compatible with a specific vehicle's lock (Correct answer)

Correct answer: Determine which key blade profile (blank) is compatible with a specific vehicle's lock

Key blank identifier references cross-reference vehicle year, make, and model to the correct key blank(s) needed, ensuring the locksmith selects a blank with the right profile to fit the lock keyway.

Question 4: A locksmith is called to rekey a Ford ignition that uses an 8-cut key. How many different depth positions are typically available per cut on most Ford 8-cut systems?

6 (Correct answer)
4
10
3

Correct answer: 6

Ford's standard 8-cut key system uses 6 depth levels (0–5 or 1–6 depending on the generation), giving a large number of possible key combinations.

Question 5: The 'space' measurement in automotive key cutting refers to:

The distance between the centerlines of adjacent cuts on the key (Correct answer)
The gap between the key blade and the key bow
The void left after a cut is made
The clearance between the key and the ignition housing

Correct answer: The distance between the centerlines of adjacent cuts on the key

Spacing defines the distance between cut centers along the key blade and ensures each cut aligns with its corresponding tumbler position.

Question 6: Which record-keeping practice is most important for an automotive locksmith to protect against a false claim that a key was made without authorization?

Keep signed work orders with customer ID copies and photos of ownership documents (Correct answer)
Rely on memory of the transaction
Keep only a digital receipt without ID verification records
Record only the vehicle make and model without customer info

Correct answer: Keep signed work orders with customer ID copies and photos of ownership documents

Signed work orders combined with copies of the customer's ID and ownership documentation provide the strongest legal defense against false claims.

Question 7: What is a 'plug follower' used for when servicing an automotive lock cylinder?

To keep springs and tumblers in place while the plug is removed from the shell (Correct answer)
To push cut keys into the cylinder for testing
To hold the cylinder steady in a vise
To follow the VIN and locate the correct key code

Correct answer: To keep springs and tumblers in place while the plug is removed from the shell

A plug follower is inserted behind the plug as it is removed, maintaining spring and tumbler tension to prevent them from scattering out of the shell.

Question 8: When programming keys on a GM vehicle using the '10-minute relearn' procedure, what must the locksmith do?

Insert each new key and hold until the security light goes out for each key, repeating for all keys (Correct answer)
Connect the ALDL terminal and wait for the PCM to accept a new seed
Disconnect the battery for 10 minutes to reset the PASSLOCK module
Leave the ignition in ON position for 10 minutes and then cycle the key

Correct answer: Insert each new key and hold until the security light goes out for each key, repeating for all keys

GM's 10-minute relearn requires inserting each new key, waiting for the security light to extinguish (approximately 10 minutes per key), confirming the PASSLOCK system learns the new key.

Question 9: A vehicle's ignition lock cylinder turns but the steering column does not unlock. Which component has most likely failed?

Steering column lock bolt or rack (Correct answer)
Ignition coil primary winding
Key cut worn beyond specification
Ignition switch actuator rod

Correct answer: Steering column lock bolt or rack

The steering column lock bolt or rack is directly actuated by the lock cylinder's cam; if the bolt is broken or jammed, the column will remain locked despite the cylinder turning.

Question 10: What is the primary purpose of a transponder chip embedded in a high-security automotive key?

To control the power door locks remotely
To encrypt the key's mechanical cuts
To store the vehicle's VIN number
To communicate an immobilizer code to the ECU (Correct answer)

Correct answer: To communicate an immobilizer code to the ECU

The transponder chip transmits a unique rolling or fixed code to the vehicle's ECU, which must match before the engine is allowed to start.

Question 11: When using a code cutting machine, what is the 'bitting list' used for?

Identifying the sequence and depth values for each key cut based on the key code (Correct answer)
Ordering replacement lock cylinders
Logging customer information for compliance
Selecting the correct key blank from inventory

Correct answer: Identifying the sequence and depth values for each key cut based on the key code

A bitting list (or bitting code) provides the specific depth values for each cut position on a key, allowing the code cutter to produce the correct key from the key code alone.

Question 12: What happens during the 'challenge-response' phase of a crypto transponder authentication?

The ECU sends a random number, and the transponder returns an encrypted answer (Correct answer)
The transponder resets the ECU to allow startup
The BCM cuts power until the correct fixed code is received
The key sends its ID and the ECU confirms via a simple match

Correct answer: The ECU sends a random number, and the transponder returns an encrypted answer

In challenge-response authentication, the ECU generates a random challenge; the transponder uses a shared secret key to compute and return the correct encrypted response.

Question 13: A pickup truck tailgate lock is difficult to operate with the key, and lubrication has not improved the situation. What should the locksmith inspect next?

The backup camera wiring behind the tailgate panel
The worn or damaged wafers inside the cylinder and the tailgate alignment (Correct answer)
The trailer hitch connection and receiver tube
The tire pressure sensor signals on the rear axle

Correct answer: The worn or damaged wafers inside the cylinder and the tailgate alignment

When lubrication fails to resolve binding, worn internal wafers and tailgate misalignment (which creates lateral stress on the cylinder) are the most likely culprits requiring physical inspection.

Question 14: A GM vehicle with a VATS (Vehicle Anti-Theft System) cranks but will not start, and the security light is on solid. The locksmith has verified the key's resistor pellet is correct. What is the most likely electrical point of failure?

A faulty fuel injector relay.
A drained vehicle battery.
The key's transponder chip has failed.
Broken wires leading from the ignition lock cylinder. (Correct answer)

Correct answer: Broken wires leading from the ignition lock cylinder.

The GM VATS system reads the key's resistor pellet via a set of contacts inside the ignition lock cylinder. These contacts are connected by very thin wires that run down the steering column. Due to the constant rotation of the ignition, these wires are a common failure point, leading to an open or intermittent circuit. This causes the VATS module to receive an incorrect resistance reading, triggering the security light and a no-start condition. [11, 17]

Question 15: What is the function of the key exciter ring (antenna ring) around the ignition cylinder?

It generates a low-frequency electromagnetic field to power the transponder chip in the key (Correct answer)
It transmits the door unlock signal at 315 MHz
It reads the mechanical key cuts to verify they match the lock
It amplifies the remote start signal to reach the BCM

Correct answer: It generates a low-frequency electromagnetic field to power the transponder chip in the key

The exciter (antenna) ring energizes the passive transponder chip via inductive coupling at 125 kHz, allowing the chip to respond with its stored code without needing a battery.

Question 16: A 2018 Honda Civic requires a new ignition key. The locksmith identifies it as needing a Honda 'G' chip transponder. What does specifying the correct chip type ensure?

The key fob remote will pair to the vehicle
The key can be cut on any standard machine
The correct frequency and protocol are used for immobilizer communication (Correct answer)
The key blade will fit the ignition cylinder

Correct answer: The correct frequency and protocol are used for immobilizer communication

Different transponder chip types operate on different frequencies and protocols; using the wrong chip type means the immobilizer ECU will never recognize the key regardless of programming attempts.

Question 17: What is the recommended practice when an automotive locksmith cannot confirm a vehicle's ownership on a service call?

Call the manufacturer for authorization
Perform the service and notify police afterward
Proceed with service and document the uncertainty
Decline to perform the service until ownership can be verified (Correct answer)

Correct answer: Decline to perform the service until ownership can be verified

If ownership cannot be confirmed, the locksmith should decline service to avoid potential legal liability for facilitating vehicle theft.

Question 18: What is the primary purpose of maintaining a detailed job ticket or work order for every automotive locksmith service call?

To satisfy manufacturer warranty requirements
To document the customer's authorization, work performed, and protect the locksmith legally (Correct answer)
To record vehicle mileage for service reminders
To track employee hours for payroll

Correct answer: To document the customer's authorization, work performed, and protect the locksmith legally

A detailed work order documents customer authorization and the scope of work, providing legal protection if a dispute arises.

Question 19: When using a tryout key set on a Japanese vehicle's door lock, which factor determines compatibility?

The keyway profile and the manufacturer's wafer sequence range (Correct answer)
The vehicle's color and trim level
The number of doors on the vehicle
The age of the vehicle only

Correct answer: The keyway profile and the manufacturer's wafer sequence range

Tryout keys must match the specific keyway profile and cover the range of wafer positions used by the manufacturer for that lock series.

Question 20: In an 'All Keys Lost' situation for a modern vehicle, what is the primary advantage of using a Lishi 2-in-1 tool on the door lock over a traditional lockout kit (air wedge and long reach tool)?

It allows the locksmith to both open the lock and decode the key bitting simultaneously. (Correct answer)
It is significantly faster for gaining entry on all vehicle models.
It bypasses the vehicle's electronic security system entirely.
It avoids any potential contact with side-impact airbags and door wiring.

Correct answer: It allows the locksmith to both open the lock and decode the key bitting simultaneously.

The "2-in-1" designation for a Lishi tool refers to its ability to both pick (manipulate) the lock to open it and decode (read) the depths of each wafer. This decoded information is crucial for cutting a new mechanical key from scratch, a step that cannot be accomplished with a simple lockout kit used only for entry.

Question 21: What is a 'slam lock' situation in automotive locksmithing?

When a key breaks off in the lock while turning
When a vehicle door lock is jammed and won't open from inside or outside
When a lock cylinder seizes due to corrosion
When a door is closed with the keys inside and the lock automatically engages (Correct answer)

Correct answer: When a door is closed with the keys inside and the lock automatically engages

A slam lock occurs when a vehicle door is shut and the lock automatically engages upon closing, trapping the keys inside.

Question 22: Which ignition system component is responsible for converting low-voltage battery current into the high-voltage spark needed for combustion?

Ignition control module
Crankshaft position sensor
Distributor cap
Ignition coil (Correct answer)

Correct answer: Ignition coil

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 23: In a central locking system, which module receives the key fob signal and sends commands to all door lock actuators simultaneously?

Ignition switch module
Starter relay control unit
Body Control Module (BCM) (Correct answer)
Fuse and relay box

Correct answer: Body Control Module (BCM)

The Body Control Module (BCM) receives the RF signal from the key fob and sends activation commands to all door lock actuators to lock or unlock simultaneously.

Question 24: When an automotive locksmith receives a request to make a key for a vehicle, what is the best practice regarding the vehicle identification number (VIN)?

Ask the customer to provide the VIN verbally without verification
Record the VIN and verify it matches the customer's provided ownership documents (Correct answer)
Use the VIN only to look up key blank pricing
Ignore the VIN since it is only needed by dealers

Correct answer: Record the VIN and verify it matches the customer's provided ownership documents

Recording and verifying the VIN against ownership documents is a key due-diligence step that protects the locksmith and prevents potential theft facilitation.

Question 25: When a locksmith uses an 'all-keys-lost' procedure on a modern vehicle, what is a critical prerequisite before programming new keys?

The old key codes must be physically cut out of the BCM
The vehicle must be running during the entire procedure
The steering wheel must be in the locked position
The vehicle battery must be fully charged or a battery support unit must be connected (Correct answer)

Correct answer: The vehicle battery must be fully charged or a battery support unit must be connected

Programming procedures draw significant power and communicate with sensitive ECUs; low voltage during programming can corrupt module data or cause incomplete key writes.

Question 26: When synchronizing a remote key fob that has fallen out of sync with the vehicle, what is the recommended first step?

Perform an OBD reflash to reset the Body Control Module
Replace the fob battery and attempt re-sync using the vehicle's built-in programming mode (Correct answer)
Reprogram the fob's rolling code by connecting it to an EEPROM reader
Replace the remote entirely as rolling codes cannot be reset

Correct answer: Replace the fob battery and attempt re-sync using the vehicle's built-in programming mode

A weak or dead battery is the most common cause of sync loss; replacing it and running the vehicle's onboard programming sequence often restores communication.

Question 27: Which instrument is used in automotive locksmithing to verify that a key programming tool is correctly communicating with a vehicle's OBD-II port by monitoring data signals?

Key cutting caliper
Oscilloscope or logic analyzer (Correct answer)
Pin tumbler pick set
Transponder cloner

Correct answer: Oscilloscope or logic analyzer

An oscilloscope or logic analyzer can monitor the electrical signals on the OBD-II bus (CAN, K-Line, etc.) to verify communication between the programming tool and the vehicle's modules.

Question 28: On a vehicle with a 'fold-down' door lock post (like many Chrysler products), how does a long-reach tool typically unlock it?

Slide a Slim Jim under the post to lift
Push the post down to the unlock position using a loop or straight-tip tool (Correct answer)
Rotate the post 90 degrees with a wedge tool
Pull the post upward using a J-hook

Correct answer: Push the post down to the unlock position using a loop or straight-tip tool

Fold-down lock posts on Chrysler vehicles are unlocked by pressing them downward, so a loop or straight-tip tool pushing down is correct.

Question 29: A 'tryout key set' for automotive locksmithing is used to:

Test newly cut keys for correct depth
Identify the make and model of an unknown vehicle
Progressively try many pre-cut keys to open a lock without the original key (Correct answer)
Program EEPROM data in key fobs

Correct answer: Progressively try many pre-cut keys to open a lock without the original key

Tryout key sets contain a series of keys with different bitting combinations that are tried systematically in a lock to find the correct combination without the original key.

Question 30: When would a locksmith use the 'pin code' method to program a key versus the OBD method?

Pin code method is faster and always preferred over OBD
Pin code is used only for mechanical key cutting, not electronic programming
Pin code is used when OBD access is blocked by a faulty DLC or when the vehicle's security requires a PIN before OBD programming is allowed (Correct answer)
Pin code is exclusively for European vehicles; OBD is exclusively for American vehicles

Correct answer: Pin code is used when OBD access is blocked by a faulty DLC or when the vehicle's security requires a PIN before OBD programming is allowed

Some vehicles require the 4-digit or 5-digit security PIN to unlock the immobilizer for programming, and others may have a damaged DLC that forces the technician to use an alternative pin-based entry.

Question 31: Which of the following best describes the difference between 'cloning' a transponder key and 'programming' a new key?

Programming is only for smart keys, while cloning is for traditional remote-head keys.
Cloning is done via the OBD-II port, while programming is done with a benchtop device.
Cloning creates an exact copy of an existing key's electronic signature, making it indistinguishable to the vehicle, whereas programming adds a new, unique key to the vehicle's memory. (Correct answer)
Cloning requires two working keys to start, while programming only requires one.

Correct answer: Cloning creates an exact copy of an existing key's electronic signature, making it indistinguishable to the vehicle, whereas programming adds a new, unique key to the vehicle's memory.

Cloning involves reading the data from a working transponder chip and writing it onto a new, cloneable chip. The vehicle sees both the original and the cloned key as the exact same key. Programming, on the other hand, is the process of introducing a new, unique transponder key to the vehicle's immobilizer system through the OBD-II port, which then registers it as a distinct, additional key in its memory.

Question 32: What is the primary reason automotive locksmiths must document the odometer reading when servicing a vehicle?

To comply with EPA emissions reporting
To provide a reference point that the vehicle was in their possession at a specific mileage, limiting liability claims (Correct answer)
To calculate proper oil change intervals
To satisfy insurance underwriting requirements

Correct answer: To provide a reference point that the vehicle was in their possession at a specific mileage, limiting liability claims

Recording odometer mileage establishes a time-stamped record of the vehicle's condition when in the locksmith's care, limiting liability for pre-existing damage claims.

Question 33: A customer has lost all keys to their 2018 Honda Accord with a push-to-start ignition. Which of the following methods is the MOST appropriate first step for an automotive locksmith to generate a new key?

Perform an EEPROM dump by removing the immobilizer module to read the key data directly from the chip.
Obtain the vehicle's key code using the VIN and cut a new key, then program it via the OBD-II port. (Correct answer)
Disassemble the steering column to access the ignition switch and manually create a key.
Use a key cloning device to copy the data from a similar Honda model.

Correct answer: Obtain the vehicle's key code using the VIN and cut a new key, then program it via the OBD-II port.

In an 'All Keys Lost' (AKL) situation for a modern vehicle like a 2018 Honda, the standard and most efficient procedure is to first obtain the key code from the vehicle manufacturer or a licensed broker using the Vehicle Identification Number (VIN). This code provides the specific cuts for the physical key blade. Once the key is cut, the locksmith programs the new key's transponder to the vehicle's immobilizer system using a diagnostic tool connected to the OBD-II port.

Question 34: Which type of key provides the highest level of security against unauthorized duplication?

Standard metal key
Skeleton key
Plastic valet key
Laser-cut key (Correct answer)

Correct answer: Laser-cut key

Laser-cut keys feature a complex, unique design that makes unauthorized duplication significantly more difficult.

Question 35: A customer's push-to-start vehicle won't recognize the smart key fob near the start button. After confirming the fob battery is good, what should the locksmith check next?

Whether the tire pressure sensors need reset
If the vehicle's cabin air filter is clogged
If the vehicle's cigarette lighter fuse is blown
Whether the fob is programmed/paired to the vehicle's PKE (Passive Keyless Entry) system (Correct answer)

Correct answer: Whether the fob is programmed/paired to the vehicle's PKE (Passive Keyless Entry) system

Smart fobs must be paired to the vehicle's Passive Keyless Entry system; a replacement or unprogrammed fob will not be recognized by the antenna array even with a fresh battery.

Question 36: A customer's vehicle starts with the original key but not the newly programmed key. The most likely cause is:

The ignition cylinder needs replacement
The transponder data was not successfully written to the new key (Correct answer)
The immobilizer fuse has blown
The new key blade is cut incorrectly

Correct answer: The transponder data was not successfully written to the new key

If the blade cut is correct but the car won't start, the transponder chip was likely not properly programmed or cloned.

Question 37: When an ignition switch is worn and causes the vehicle to stall while driving, which component is most likely failing?

The starter relay
The electrical ignition switch (Correct answer)
The neutral safety switch
The ignition lock cylinder

Correct answer: The electrical ignition switch

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

Question 38: In the context of automotive locksmithing, what is the primary function of software databases such as InstaCode or Genericode?

To flash new firmware onto a vehicle's immobilizer module.
To program transponder chips directly via a USB interface.
To clone the radio frequency of remote key fobs.
To provide key cutting codes, bitting information, and key blank cross-references. (Correct answer)

Correct answer: To provide key cutting codes, bitting information, and key blank cross-references.

InstaCode and similar programs are comprehensive code databases for locksmiths. By inputting a vehicle's key code, or sometimes model information, a locksmith can retrieve the original key bitting, space and depth information, and the correct key blank, which is essential for originating a key by code.

Question 39: 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?

Reprogram all door locks
Perform a PassLock relearn procedure (Correct answer)
Replace the BCM
Replace the transponder antenna

Correct answer: Perform a PassLock relearn procedure

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 40: Which type of insurance is most critical for an automotive locksmith to carry to cover damage accidentally caused to a customer's vehicle?

Commercial auto insurance
Workers' compensation insurance
General liability insurance (Correct answer)
Professional indemnity insurance for software

Correct answer: General liability insurance

General liability insurance covers third-party property damage, including accidental damage caused to a customer's vehicle during a service call.

CAL — Certified Automotive Locksmith

The CAL is ALOA's entry-level automotive specialist certification, testing knowledge of vehicle entry, key cutting and programming, lock cylinder and ignition service, transponder/immobilizer systems, automotive tools, and business and legal practices.

Questions

60 min

Time Limit

70%

To Pass

Checking for saved progress...

Exam Rules

You can skip questions and return to them later
Flag questions for review before submitting
No feedback shown until you submit the entire exam
Unanswered questions count as wrong — answer everything
10 pretest questions are mixed in and don't affect your score
Timer auto-submits when time runs out
Your progress is auto-saved every 30 seconds