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.
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HOMESERVICE MANUALSMITSUBISHI2000GALANT LS V6-3.0L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSENGINE CONTROLS - PCM REPROGRAMMING PROCEDUREIII. ERROR LIST
2000 Mitsubishi Galant LS V6-3.0L SOHC
III. Error List
2000 Mitsubishi Galant LS V6-3.0L SOHCSECTION III. Error List
Vehicle battery voltage is low
If the battery voltage is below 9.8 V, this error will display for five seconds.
Recharge or replace the battery. Press ENTER to continue.
Download Error
This message displays if:
- the MUT-III harness is disconnected during
reprogramming
- the ignition switch is turned off during
reprogramming
- a communication problem occurs during
reprogramming
- battery voltage is low
No response from vehicle ECU
This message displays if:
- the vehicle ECU does not require reprogramming
- the MUT-III harness is disconnected during reprogramming
- the ignition switch is off
Checking ECU download error
This message displays if there is a communication problem. Turn the ignition switch to OFF and retry.
ECU check error
This message displays if the memory card data does not match the ECU data. Press ENTER to update the ECU with the memory card data.
D/B incorrect, reinstall D/B
This message displays if the data in the memory card is not appropriate for the PCM. Press ENTER to return to the main menu. Remove the memory card from the VCI and install in the MUT-III PC, then retry data transfer.
CK VNxxxxxx; No Data
This message displays if there is no reprogramming data in the memory card. Press ENTER to return to the main menu. Remove the memory card from the VCI and install in the MUT-III PC, then retry data transfer.
If the battery voltage is below 9.8 V, this error will display for five seconds.
Recharge or replace the battery. Press ENTER to continue.
Download Error
This message displays if:
- the MUT-III harness is disconnected during
reprogramming
- the ignition switch is turned off during
reprogramming
- a communication problem occurs during
reprogramming
- battery voltage is low
No response from vehicle ECU
This message displays if:
- the vehicle ECU does not require reprogramming
- the MUT-III harness is disconnected during reprogramming
- the ignition switch is off
Checking ECU download error
This message displays if there is a communication problem. Turn the ignition switch to OFF and retry.
ECU check error
This message displays if the memory card data does not match the ECU data. Press ENTER to update the ECU with the memory card data.
D/B incorrect, reinstall D/B
This message displays if the data in the memory card is not appropriate for the PCM. Press ENTER to return to the main menu. Remove the memory card from the VCI and install in the MUT-III PC, then retry data transfer.
CK VNxxxxxx; No Data
This message displays if there is no reprogramming data in the memory card. Press ENTER to return to the main menu. Remove the memory card from the VCI and install in the MUT-III PC, then retry data transfer.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.