Lost the key went to AutoZone got new ignition switch and key replaced it. Now my security light is on and it will not start.
Feb 25, 2018 at 4:03 AM
Security light
1999 CHEVROLET SUBURBAN
MARZELL
- MEMBER
- 1 POST
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You need to have the new ignition switch programmed into the system. The easiest way is with a scan tool. There is a way that takes thirty or more minutes and may work.
However, as you have already tried to start it which may have set a code it may not work.
The following is the auto learn procedure:
Insure the ignition key is in the "on" position.
3 - Momentarily rotate the ignition key to the crank position (do not start the vehicle), then release it to the "run" position (do not key off in the process).
4 - Wait ten minutes . Observe the security indicator. Refer to the following list for the appropriate responses:
If the pass-lock tm sensor was replaced the security indicator will flash for the ten minutes duration.
If the EVO/passlock tm module was replaced, the security indicator will flash for a few seconds and then remain on for the remainder of the ten minutes duration.
5 - The security indicator will transition from flashing to on briefly to off after ten minutes if remaining in the ignition on position.
6 - Turn the ignition switch to the off position and wait for ten seconds .
Repeat steps 3-6 two more times.
The new security code is ready to be communicated among the pass-lock sensor, EVO/pass-lock module and VCM/PCM.
The new password is learned on the next ignition lock cylinder cycle from off to crank to on (start attempt).
However, as you have already tried to start it which may have set a code it may not work.
The following is the auto learn procedure:
Insure the ignition key is in the "on" position.
3 - Momentarily rotate the ignition key to the crank position (do not start the vehicle), then release it to the "run" position (do not key off in the process).
4 - Wait ten minutes . Observe the security indicator. Refer to the following list for the appropriate responses:
If the pass-lock tm sensor was replaced the security indicator will flash for the ten minutes duration.
If the EVO/passlock tm module was replaced, the security indicator will flash for a few seconds and then remain on for the remainder of the ten minutes duration.
5 - The security indicator will transition from flashing to on briefly to off after ten minutes if remaining in the ignition on position.
6 - Turn the ignition switch to the off position and wait for ten seconds .
Repeat steps 3-6 two more times.
The new security code is ready to be communicated among the pass-lock sensor, EVO/pass-lock module and VCM/PCM.
The new password is learned on the next ignition lock cylinder cycle from off to crank to on (start attempt).
Feb 26, 2018 at 5:13 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.