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 MANUALSCHEVROLET1995BERETTA L4-2.2L VIN 4REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTECHNICAL SERVICE BULLETINSALL TECHNICAL SERVICE BULLETINSTECH 1 & VIM - ECM PROGRAMMING
1995 Chevrolet Beretta L4-2.2L VIN 4
Tech 1 & VIM - ECM Programming
1995 Chevrolet Beretta L4-2.2L VIN 4SECTION Tech 1 & VIM - ECM Programming
File in Section: 6E - Engine Fuel & Emission
Bulletin No.: 53-65-04
Date: September, 1995
INFORMATION
Subject:
Reprogramming Vehicles Using a Tech 1 and Vehicle Interface Module (VIM)
Models:
1995-96 Passenger Cars and Trucks
OBD II Vehicles with Tech 1 Reprogramming Capabilities
A condition has been detected in the Vehicle Interface Module (VIM) used with the Tech 1. The condition occurs only when using the Tech 1 to reprogram OBD II vehicles.
During a reprogramming event on OBD II vehicles, the Tech 1 will not complete the transfer of the new calibration to the Electronic Control Module (ECM). The fault is not with the Tech 1 but with the VIM. The inability to complete the transfer leaves the ECM "dead" with no calibration, requiring replacement of the ECM.
Although the condition could happen with any OBD II vehicle, it has only been identified on the 1995-1/2 J car. Technicians trying to reprogram a 1995-1/2 J car will receive a message stating "Remote Programming not supported for entered VIN". This message is received after the technician has pulled the information from the vehicle and connects the Tech 1 to the Techline terminal.
The September Techline CD-ROM contains a Tech 1 Mass Storage Cartridge (MSC) update that corrects this condition. The MSC should be updated as soon as possible to avoid any further concerns with reprogramming OBD II vehicles related to the VIM.
If you are not familiar with updating your MSC, please review the introduction section of your MSC user's guide or the terminal Menu Section of the Techline user's guide.
Programming of OBD II vehicles can also be done using the Direct programming method. A T-60, T-50, and T-20 Plus are capable of programming OBD II vehicles using the Direct programming method.
Bulletin No.: 53-65-04
Date: September, 1995
INFORMATION
Subject:
Reprogramming Vehicles Using a Tech 1 and Vehicle Interface Module (VIM)
Models:
1995-96 Passenger Cars and Trucks
OBD II Vehicles with Tech 1 Reprogramming Capabilities
A condition has been detected in the Vehicle Interface Module (VIM) used with the Tech 1. The condition occurs only when using the Tech 1 to reprogram OBD II vehicles.
During a reprogramming event on OBD II vehicles, the Tech 1 will not complete the transfer of the new calibration to the Electronic Control Module (ECM). The fault is not with the Tech 1 but with the VIM. The inability to complete the transfer leaves the ECM "dead" with no calibration, requiring replacement of the ECM.
Although the condition could happen with any OBD II vehicle, it has only been identified on the 1995-1/2 J car. Technicians trying to reprogram a 1995-1/2 J car will receive a message stating "Remote Programming not supported for entered VIN". This message is received after the technician has pulled the information from the vehicle and connects the Tech 1 to the Techline terminal.
The September Techline CD-ROM contains a Tech 1 Mass Storage Cartridge (MSC) update that corrects this condition. The MSC should be updated as soon as possible to avoid any further concerns with reprogramming OBD II vehicles related to the VIM.
If you are not familiar with updating your MSC, please review the introduction section of your MSC user's guide or the terminal Menu Section of the Techline user's guide.
Programming of OBD II vehicles can also be done using the Direct programming method. A T-60, T-50, and T-20 Plus are capable of programming OBD II vehicles using the Direct programming method.
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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.