For step-by-step programming instructions, please refer to the manufacturers guidelines.
Review the information below to ensure proper programming protocol.
Important:
| • | DO NOT program a control module unless you are directed by a service procedure or you are directed by the manufacturers service bulletin. Programming a control module at any other time will not permanently correct a customers concern. |
| • | It is essential that the Scan Tool is equipped with the latest software before performing service programming. |
| • | Due to the time requirements of programming a controller, it is recommended that an external power source be used to maintain system voltage. Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of
voltage will interrupt programming. |
| • | SPNs may set during programming. Clear DTCs after programming is complete. |
Ensure the following conditions are met before programming a control module:
| - | There is not a charging system concern. All charging system concerns must be repaired before programming a control module. |
| - | Battery voltage is greater than 12 volts but less than 16 volts. The battery must be fully charged before programming the control module. |
| - | Turn OFF or disable any system that may put a load on the vehicles battery, such as the following components: |
| - | Engine electrical loads are turned OFF, radio, etc. |
| • | The ignition switch must be in the proper position. Turn ON the ignition, with the engine OFF. DO NOT change the position of the ignition switch during the programming procedure, unless instructed to do so. |
| • | Make certain all tool connections are secure, including the following components and circuits: |
| - | The connection at the data link connector (DLC) |
| - | The voltage supply circuits |
| • | DO NOT disturb the tool harnesses while programming. If an interruption occurs during the programming procedure, programming failure or control module damage may occur. |
| • | DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure that all control module and DLC connections are secure and the operating software is up to date. Attempt to reprogram the control module.
If the control module cannot be programmed, replace the control module. |
