blondee_yvr
Member
- :
- 2012 Mazda3
I've been watching several YouTube videos and written instructions. Only but a couple ever mentioning running into a situation where your vehicle memory settings like radio and computer are lost.
I came across this link which scares me with procedure #1.
Based on the videos I seen, I take it most people never bother to clean their battery terminals. I never did the first time I replaced my battery in my 05 Mazda and I had no issue, but subsequent times when I went to do some battery maintenance I ran into the throttle body/rough-idle issue.
Here is the procedure below:
I came across this link which scares me with procedure #1.
Based on the videos I seen, I take it most people never bother to clean their battery terminals. I never did the first time I replaced my battery in my 05 Mazda and I had no issue, but subsequent times when I went to do some battery maintenance I ran into the throttle body/rough-idle issue.
Here is the procedure below:
If you replace the battery or clean the electronic throttle body on a Mazda 2.5L engine, you must perform a Mazda throttle body relearn procedure to teach the computer a new “home” position. It’s not hard. Just follow these steps in exact order.
To do a Mazda throttle body relearn procedure
1. Perform a hard PCM reset by disconnecting the battery cables from the battery and touching them together. This will drain the capacitors in the PCM to wipe out adaptive memory.
2. Reconnect the battery and turn the key on but do not start the engine. Immediately depress the throttle to the floor (wide open throttle) 3 times. This will set the TPS angle.
3. Start the engine with no loads on (no lights, blower, defroster, etc) and allow it to come up to full operating temperature (wait for the radiator fans to come on.
4. Then add loads to the engine by turning on lights, AC, brake application, steering input, one at a time.
This will cause engine load and the throttle body will open to compensate for the increased load. The throttle body relearn is now done.