Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 Kia Optima SXFACTORY OEM SERVICE PROCEDURE
Crash Unlock Function (Without 30 Sec Timer)
WARNING: This page is about a different car, the 2013 Kia Sportage and 2012 Kia Sportage. However, it is still accessible from the selected car via links, so may be relevant.
- Behavior Characteristics
- This function is to make unlock status in emergency case.
- If the crash is occurred (b_Crash ==On, when P_CrashUnlock signal is changed to crash status), output all doors unlock during "CrashUnlockTime"
- After crash unlocking, If safety knob state is changed unlock to lock, all doors are unlocked, again.
- After crash is activated, Central Lock and Auto Door Lock Function can not operate until Key off.
- P_CrashInput signal (PWM)
- Before crash: When crash condition is not present, input is made as follows (b_Crash ==Off at P_CrashInput signal event is as follows)
- After Crash:
- When crash happen, input is made as follow signal.
- BCM should be enabled (b_Crash ==On) when received at least one pulse during P_CrashInput signal appeared.
- P_CrashInput signal activated during 200 ms after crash.(10 cycle)
- State Description
VALUE SPECIFICATION CHART
| Name | Value |
|---|---|
| Crash Off Delay Time | 0 msec |
| Crash Out Time | 5 Β± 0.5 sec |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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