Security Light wont go off... Help me plz. 94 jeep Gran


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Security Light wont go off... Help me plz. 94 jeep Grand Cherokee

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Auto Repair Home>> Automotive Repair>> Automotive Wiring and Electrical

alsfixit
Novice

Aug 25, 2011, 9:21 PM

Post #1 of 4 (5217 views)

Security Light wont go off... Help me plz. 94 jeep Grand Cherokee	Sign In

I reset the security alarm on a 94 Jeep Grand Cherokee 5.2. Now the Security light wont go off and the vehicle wont start. I've tried to open the doors with the keys locking n unlocking. i turned for the key on for 30 mins in the vehicle and the headlight just kept blinking and the security light is still on and the vehicle still wont start. If anyone has any suggestions or knows how to fix it PLZ PLZ contact me and let me know.

Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Aug 26, 2011, 8:39 PM

Post #2 of 4 (5182 views)

Re: Security Light wont go off... Help me plz. 94 jeep Grand Cherokee	Sign In

What about your remote? Does that disarm the alarm?

Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

alsfixit
Novice

Aug 26, 2011, 9:27 PM

Post #3 of 4 (5175 views)

Re: Security Light wont go off... Help me plz. 94 jeep Grand Cherokee	Sign In

I work on cars... Im fixing this Jeep for a friend of mine he bought it from someone n they didnt give him a remote for the alarm. something is wrong electrically cuz since then the vehicle is not wanting to start because of the security light n computer.

Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Aug 27, 2011, 7:52 AM

Post #4 of 4 (5161 views)

Re: Security Light wont go off... Help me plz. 94 jeep Grand Cherokee	Sign In

If the alarm is going off, the engine will not start. The alarm module communicates with the engine computer(PCM) over a CCD network. If the alarm is activated the alarm module will tell the PCM to not let the engine start. The PCM cuts off the fuel injectors.

If you had disconnected the battery, once reconnected the alarm module goes into power up alarm mode. It will flash the lights and keep the engine from starting.

Normally you can disable the alarm by passively unlocking either door or liftgate with the key or actively using the remote.

Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

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