PT-40 ELD Installation Guide

Before you start

• The PT-40, plus an adapter cable if you ordered one for a Volvo, Mack, or Peterbilt.
• The driver's phone or tablet with the DocuDrive driver app installed and the driver's login.
• A few zip ties or a mounting strap to hold the device and cable in place.
• The truck parked somewhere safe where you can idle the engine.

Moving a PT-30 or PT-40 over from another provider? Start with Bring Your Own ELD; the pairing and verification steps below apply once the device is on your DocuDrive account.

Step-by-step install

1. Find the diagnostic port. In a light-duty vehicle (cargo van, pickup, smaller box truck), the 16-pin OBD-II port is under the dash on the driver side, usually near the steering column or above the pedals. In a heavy truck, look for a round 9-pin or 6-pin connector under the dash, often low on the driver side near the driver's knee or by the parking brake. Not sure what you are looking at? See OBD-II vs 9-pin ports.
2. Plug in the device. Line up the connector and push it in firmly. Round heavy-duty connectors have a locking collar: turn it until it seats. If your truck needs an adapter cable, connect the cable to the truck's port first, then plug the PT-40 into the cable.
3. Secure the device and cable. Tuck the device where boots, bags, and the driver's knees will not hit it. Zip-tie the cable to a solid point under the dash so it cannot be kicked or pulled loose. A connector that wiggles out on a bumpy road will cause gaps in engine data.
4. Start the engine. The device draws power from the diagnostic port. Give it a minute after start-up to power on and connect.
5. Log into the DocuDrive driver app. Open the app on the driver's phone or tablet and sign in with the driver's credentials. Keep Bluetooth turned on.
6. Pair and confirm the vehicle. Follow the app's prompts to connect to the PT-40 and confirm you are in the right truck. In a fleet, double-check the unit number so logs land on the correct vehicle.
7. Verify before the first trip. Check that the app shows the device as connected and that the truck's location is reporting. If someone in the office has portal access, have them confirm the truck appears on the map.
8. Put the in-cab documents in place. Keep the ELD information packet in the truck: the data transfer instruction sheet, the malfunction instruction sheet, and at least 8 days of blank paper log graph-grids (49 CFR 395.22(h)). See ELD cab card.

Show the driver Inspection Mode

Spend two minutes on this before the truck leaves the yard. At a roadside stop or a scale house, the officer will ask for logs. The driver opens Inspection Mode in the app and taps Send, which transfers the logs by DocuDrive's registered telematic method (web services and email). Walk through it once in the yard so it is familiar when it counts. The DOT inspection guide covers what officers usually check.

Troubleshooting

No power light on the device

• Make sure the engine is running, then give the device a minute to power up.
• Unplug and reseat the connector. On round 9-pin and 6-pin ports, make sure the locking collar is fully turned.
• If you are using an adapter cable, check both ends: truck to cable, and cable to device.
• Check the truck's fuse for the diagnostic port. A blown fuse here also knocks out shop scan tools.

Loose connector or intermittent connection

• If the app shows the device dropping in and out, the connector is often the cause. Reseat it and add a zip tie so the weight of the device is not hanging on the port.
• Look for bent or pushed-back pins on the truck side. A damaged port needs a shop.

App does not see the device

• Confirm Bluetooth is on and the app has location and Bluetooth permissions in the phone's settings.
• Close and reopen the app, then try connecting again with the engine running.
• Make sure the driver is logged into the right account and has the right truck selected.
• Restart the phone. It clears more Bluetooth problems than it should.

Still stuck? Call U.S.-based support at (720) 362-3783.

If the ELD fails on the road

If the device malfunctions, the driver must give the carrier written notice within 24 hours, reconstruct the current day and the previous 7 days on paper unless those records can be pulled from the ELD, and keep paper logs until it is fixed. The carrier has 8 days from discovery to correct the malfunction, unless FMCSA grants an extension (49 CFR 395.34). This is why the blank graph-grids belong in the cab. The hours of service guide covers the paper log rules you fall back on.