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Mike V.
Mike V., Nissan Technician
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Experience:  Nissan factory trained and Certified Subaru Technician.
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2004 nissan altima reprogram throttle body

Customer Question

2004 nissan altima reprogram throttle body
Submitted: 4 years ago.
Category: Nissan
Expert:  Mike V. replied 4 years ago.
Hi there! It is normally done with the dealer scan tool. It can be done manually however, here is the procedure. Be sure to follow all the steps and to warm up the engine to full operating temp prior to doing this. Also, use a clock or watch with a second hand because the timing has to be perfect. Hope this helps!

1. Perform "Accelerator Pedal Released Position Learning".

a. Make sure that accelerator pedal is fully released.

b. Turn ignition switch 'ON' and wait at least 2 seconds.

c. Turn ignition switch 'OFF' wait at least 10 seconds.

d. Turn ignition switch 'ON' and wait at least 2 seconds.

e. Turn ignition switch 'OFF' wait at least 10 seconds.

2. Perform "Throttle Valve Closed Position Learning" .

a. Make sure that accelerator pedal is fully released.

b. Turn ignition switch 'ON'.

c. Turn ignition switch 'OFF' wait at least 10 seconds.

Make sure that throttle valve moves during above 10 seconds by confirming the operating sound.

3. Start engine and warm it up to normal operating temperature.

4. Turn ignition switch 'OFF' and wait at least 10 seconds.

5. Confirm that accelerator pedal is fully released, turn ignition switch 'ON' and wait 3 seconds.

6. Repeat the following procedure quickly five times within 5 seconds.

a. Fully depress the accelerator pedal.

b. Fully release the accelerator pedal.

7. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stops blinking and turned ON.

8. Fully release the accelerator pedal within 3 seconds after the MIL goes off.

9. Start engine and let it idle.

10. Wait 20 seconds.

11. Rev up the engine two or three times and make sure that idle speed and ignition timing are within the specifications.

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