Critical Info

• Unit comes pre loaded with software matched to VIN variants and requires matching by customer with G-Scan or Tech2.
• Customer must obtain the ECM 4 digit security code from the vehicle or from a GM dealership by providing the 17 digit vin number.  This 4 digit code needs to be written on the shipping tag provided and returned with the exchange ECM to avoid a core penalty.
• When ordering this part the customer must supply the 17 digit vin number from the vehicle and transmission type (Auto / Manual) so Injectronics can supply the unit with the correct programming.

• Always ensure the vehicle's battery is fully charged before beginning process or attach a jumper battery as low battery voltage may affect the linking process.

  Once the process is completed cycle the Key once before starting the engine.

  
  • Click here to watch video of programming a VZ ECM with a Gscan tool.

  Note: If your vehicle's 4 digit security code begins with a ZERO (0) & it fails to link to the ECM you will need to send your ECM to Injectronics along with your PIM,BCM & KEY for programming otherwise PIM security status will be corrupted & will lock out future programming attempts.

  • If you would like further information regarding programming of ECM's have a read of our blog
  • Click here to see product service information