Troubleshooting With a Battery
In some instances you may be asked to troubleshoot your MPVI2 or Pro Link by connecting it to a AA battery to rule out a hardware issue. Here is a brief summary of what you will need to do:
| 1. | You'll need to insert the raw voltage PID into the #1 slot in your table display. |
| 2. | Connect the Red Wire on the Pro Link to the Positive terminal of the AA battery. |
| 3. | Connect the Black Wire on the Pro Link to the Negative terminal of the AA battery. |
| 4. | Connect your interface to your vehicle and begin logging. |
Without the AA battery connected, the voltage will likely hover around 1.34-1.37 volts. This is perfectly normal.
New AA batteries will put out approximately 1.5V-1.6V. If your interface is reading this voltage perfectly in the scanner, you likely have an issue somewhere else. This may be a custom PID that is incorrect, or your wideband controller may not have been properly configured.
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