(03)M45 P0462 ???

[Ryan Heo]

Hi, guys.

I've got CEL P0462; fuel level sensor malfunction. Since the fuel gauge hasn't been working correctly, I always ignored the needle and trace the ordermeter. However in this morning, the CEL came up with P0462 related to the fuel level. I already replaced the fuel sending unit about 3 month ago, so I have no idea what I am going to do.

Does anyone help me out?


Thanks,
Ryan.

[Ryan Heo]

Anyone? Please...

[seldomseen]

Anyone? Please...

Click on the link below for more information regarding this matter.

http://www.vipstylecars.com/forums/show ... hp?t=24703

[Ryan Heo]

I've read the aricle several times. I took the negative end off the battery and then left for a night, but it couldn't reset the SES light. Thus, an OBD-II scanner is ordred today for removing the SES light. Once I get the scanner, I will take the unit out and check it again.


I wish I could hear some experiences from other guys before I do it.

Thanks,
Ryan.

[MaxBolus]

You can reset that light without an OBD scanner, if you dare to learn the secret procedure ;-)

But the OBD device is easier, and people won't wonder what you're doing madly pumping the accelerator while parked in your car (this did happen to me at work, btw )

I also have the fuel gauge problem, and have been getting the P0462 code, but until (IF) I get the cluster fixed, am not going to bother with the sending unit. It goes out after a while anyway, then comes back, etc etc. Just living with it for now.

Anyway, as info, here's how to read your code using just your hands and feet ;-)
(from the FSM, page EC-66):
1. Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.
2. Repeat the following procedure quickly five times within 5 seconds.
a. Fully depress the accelerator pedal.
b. Fully release the accelerator pedal.
3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the MIL starts blinking.
4. Fully release the accelerator pedal.
***If you've done it properly, the MIL will start to flash. You can read the error code(s) by counting the MIL light flashes (a "0" is indicated by 10 flashes, btw):
First digit is a slow count; 2-4th digits are a faster flash.

TO RESET:
1. Set ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer to steps above.
2. Fully depress the accelerator pedal and keep it for more than 10 seconds.
The emission-related diagnostic information has been erased from the backup memory in the ECM.
3. Fully release the accelerator pedal, and confirm the DTC 0000 is displayed.


cheers!

[Ryan Heo]

This is a great information and advice. Since the OBD II is only $50 (include shipping) which is a lot cheaper than I take my car to a shop and save a lot of time, I will keep the scanner. If I know the secret process before I ordered, I wouldn't have bought it.

I will keep posting what I do later with the scanner.


Thanks,
Ryan