CODE CHECKSUM FAILED - FreeMotion Treadmill t7.3

That is indicating somethng has failed in your rom memory. either reprogram or replace it.

Mi caminadora nordictrac apex c500 marca el error checksum: fail, alguien sabe como arreglarlo?

OK, if you have a Password, why are you entering a PIN? They are two different ways of authenticating you as a valid user. You should not select the option to use a PIN. Use your Password or Network Key.

Bad checksum and bad cmos message signal that the chip in which the BIOS is stored has failed. This chip cannot be repaired or replaced, and since it's soldered on the motherboard it means that it is also dead.
Time for a new motherboard.

Hi janishanson,

The F6 fault code description is an EEPROM checksum error. The EEPROM checksum error occurs when the values differ. In this case, you need to replace the mainboard or control board, also called as ERC.

Hope it helps.

Thank you for using FixYa.

P0601 ENGINE CONTROL MODULE CHECKSUM ERROR

• The nerve center of the fuel injection system is the engine control module (ECM)
• The ECM constantly supervises the information from various sensors, and regulates the systems that start after vehicle performance.
• The ECM is also empowered to control all the diagnostic functions of the system.
• It can detect operational flaws and caution the driver through the Malfunction Indicator Lamp (MIL)
• It also records and stores a Diagnostic Trouble Code (DTC) which detects the likely problem- making parts to help the technician while repairing.
• In order to house the program information and the calibrations required for engine, trans-axle diagnostics operation an electrically erasable programmable read only memory (EEPROM) is used.
• For detecting errors in the software the ECM uses a specially devised value known as the checksum.
• The checksum (self explanatory) is a value that is the sum total of all the numbers in the software added together.
• If the values recorded by the ECM and the checksum do not match then a checksum error is highlighted.

Follow this link, hope it helps. Good Luck.
http://www.obd-codes.com/p0601

AMI BIOS beep codes Below are the AMI BIOS Beep codes that can occur. However, because of the wide variety of different computer manufacturers with this BIOS, the beep codes may vary.
Beep Code
Descriptions
1 short DRAM refresh failure 2 short Parity circuit failure 3 short Base 64K RAM failure 4 short System timer failure 5 short Process failure 6 short Keyboard controller Gate A20 error 7 short Virtual mode exception error 8 short Display memory Read/Write test failure 9 short ROM BIOS checksum failure 10 short CMOS shutdown Read/Write error 11 short Cache Memory error 1 long, 3 short Conventional/Extended memory failure 1 long, 8 short Display/Retrace test failed

SYMPTOM
P0601-PCM INTERNAL CONTROLLER FAILURE

TEST NOTE
This symptom is diagnosed using the test P0600-PCM FAILURE SPI COMMUNICATIONS.

WHEN MONITORED
Ignition key ON.

SET CONDITION
Internal checksum for software failed, does not match calculated value.

POSSIBLE CAUSES

• PCM internal or SPI

yes they tell you if there is something wrong

Beep Code Descriptions Document

1 short DRAM refresh failure
2 short Parity circuit failure
3 short Base 64K RAM failure
4 short System timer failure
5 short Process failure
6 short Keyboard controller Gate A20 error
7 short Virtual mode exception error
8 short Display memory Read/Write test failure
9 short ROM BIOS checksum failure
10 short CMOS shutdown Read/Write error
11 short Cache Memory error
1 long, 3 short Conventional/Extended memory failure
1 long, 8 short Display/Retrace test failed