Mobile Clean Truck Check — San Diego County | CARB OBD Testing
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Transparent pricing — no hidden fees, no surprises. We publish our prices upfront. What you see is what you pay.

Got a DMV incomplete renewal notice? We come to you.

Got a DMV incomplete renewal notice on your diesel truck or motorhome? That means you need a CARB Clean Truck Check — and I come to you. I run a readiness pre-check at your RV park, storage lot, driveway, or job site. If you are ready, I submit the official OBD test to the state on the spot.

On-site servicePre-check firstClear proof of submission

Call/Text: +1 (619) 746-8290  •  Email: mobilecleantruckchk@gmail.com

Booking window: 7 days a week, 10:00am–4:00pm

San Diego County service area: Serving San Diego County. Mileage is calculated from ZIP 92109. Locations within 30 miles are included; trips beyond 30 miles are $1/mile additional.

Online booking:
Book Appointment

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What is a Clean Truck Check?

California requires many non-gasoline vehicles over 14,000 lbs GVWR, including commercial diesel trucks and diesel motorhomes, to pass a periodic emissions test called a Clean Truck Check. If you received a DMV notice saying "incomplete renewal" or your vehicle shows as non-compliant, this is the test you need.

A CARB-credentialed tester connects to your vehicle's OBD port, reads the emissions data, and submits the results directly to the state. If you pass, your registration can proceed. If you do not comply, you could face registration holds and late fees.

Not sure if your vehicle needs one? Call or text us — we will help you figure it out.

Services

Pre-check + test (OBD)

One price for a readiness check followed by the official test submission.

  • On-site OBD connection
  • Electronic submission to DMV
  • Digital proof and receipt

Pre-Check Only (no submission)

Know whether the vehicle is ready before submitting the official test.

  • Pass/fail readiness report
  • Readiness and monitor status
  • Emissions-related diagnostic codes
  • Upgrade to the test when ready

Fleet / Multi-Unit Scheduling

Same-site, same-day testing for multiple units with volume pricing.

  • Less downtime
  • Valid compliant inspections
  • Clear receipts

Pricing

We list prices before you book. No call-for-quote games and no hidden fees.

Pre-check + test (single vehicle)

$110

Pre-Check Only

$70

Fleet pricing

$500 min

  • 1–4 units: $110 each
  • 5–9 units: $100 each
  • 10–19 units: $90 each
  • 20+ units: $80 each

Pre-Check Protection Promise

✅ Never waste $110 on a failed test

Every appointment includes a readiness pre-check before we submit the official test. If the vehicle is not ready to pass, we skip the test and you pay only $70 for the pre-check.

  • Pre-check first, every time — we verify readiness before submitting
  • Only $70 if you are not ready — no wasted $110 test fee
  • No 30-day retest penalty — we catch problems before they are on record
  • Come back after repairs — $70 follow-up pre-check + test visit

You only pay full price when you are ready to pass.

How it works

  1. Use the Book link and provide your vehicle and service address.
  2. I arrive on-site, warm up the vehicle, and run a readiness pre-check.
  3. If ready, I submit the official test to the CTC-VIS site.
  4. You receive proof of submission and a receipt.

A lit check-engine light, active emissions DM faults, or incomplete readiness monitors can prevent a passing result.

Diesel RV Owners

Mobile CARB testing built for RV owners who hate driving to truck shops

Most providers focus on commercial fleets. We started this business because we are RV owners and know how difficult it is to move a large motorhome to a truck shop.

We come to your RV park, storage lot, or driveway. No moving your rig. No disrupting your setup.

🏕️ RV parks & resorts📦 Storage facilities🏠 Your driveway📅 Annual testing reminders

Diesel motorhomes from 2013 onward and 14,000+ GVWR generally require an annual Clean Truck Check.

FAQ

Do you do repairs?

No. OBD testing only. Emissions-related faults must be repaired before retesting. The pre-check helps prevent submitting a test that is not ready to pass.

Where do you operate?

Starting September 20, 2026, we serve San Diego County. Mileage is calculated from ZIP 92109. Locations within 30 miles are included; travel beyond 30 miles is $1 per additional mile.

What do I need on-site?

Keys must be available, with safe parking and access to the OBD port. Have any DMV or CTC-VIS notice available.

Do you test 2012 or older vehicles?

We test diesel and diesel-hybrid vehicles from 2013 onward and alternative-fuel engine vehicles from 2018 onward, when they are 14,000+ GVWR and use the OBD process.

How early can I submit a test result?

Up to 90 days before the due date.

How often is testing required?

Most in-scope vehicles require testing twice each year. Agriculture vehicles and diesel RV motorhomes generally require annual testing.

What device do you use?

We use the HEM Data DAWN OBD Inspector.

Where can I learn more?

See the California Air Resources Board Clean Truck Check program.

Contact

Chris Millet CARB Clean Truck Check LLC

I am a full-time California RVer who got credentialed and obtained certified equipment after dealing with the difficulty of getting my own motorhome tested. Now I help other diesel vehicle owners stay compliant.

Credential: View my CARB Clean Truck Check credential (PDF)

Phone/Text: +1 (619) 746-8290
Email: mobilecleantruckchk@gmail.com

Chris Millet with his RV and mobile Clean Truck Check equipment