Ignition Switch and Lock Cylinder
* These models are equipped with an airbag, which may deploy (inflate) when connected to the battery. Disconnect the negative battery cable and wait at least two minutes before starting work on the airbag.
* If your vehicle's stereo has an anti-theft code system, make sure you know the radio activation code before disconnecting the battery.
IGNITION SWITCH
Removal
PROCEDURE
1. Disconnect the negative battery cable.
2. Remove the steering wheel (see sub-section 10.16).
3. Remove the steering column cover (see sub-section 11.22) and the lower instrument panel trim (sub-section 11.23).

Inspection and Replacement
PROCEDURE
1. Check the wires from the ignition switch to the connector and disconnect it.
2. Using an ohmmeter, check the continuity between the specified terminals when the key is turned to each position in the ignition switch.
3. Replace the ignition switch if the continuity between the connector terminals is not as specified in the table.
4. Remove the screws securing the ignition switch to the lock cylinder housing and remove the ignition switch.
5. Installation is the reverse of removal. Following the instructions (refer to Subsection 10.16), adjust the spiral cable before installing the steering wheel.
IGNITION LOCK CYLINDER
Inspection and Replacement
PROCEDURE

1. With the key in the ACC position (accessory power to the vehicle electrical equipment), insert a small flat-blade screwdriver or wire into the housing hole, press the release button, and pull out the cylinder. Remove it from the steering column.
2. Installation is the reverse of removal. Following the instructions (refer to Subsection 10.16), adjust the spiral cable before installing the steering wheel.
Test yourself
A quick Toyota Corolla quiz: every answer comes with an explanation and a link to the manual page.