CARB HD Inspection and Maintenance Rule / Clean Truck Check
> This rule applies to vehicles operating in California and their owners/operators.
> Trucks that operate in California must be registered in CARB’s HD I/M database.
> A 5-day exemption per year can be obtained.
> Owners/operators must obtain and maintain a vehicle compliance certificate. OF; peel [=]
Annual $30 fee applies. ia rr as
el oe ee
> Owners/operators must perform periodic compliance tests on each vehicle by a ie ra a =
specific deadline specified by CARB for each vehicle: eles cl
* Bi-annual OBD data snapshot with certified tools, conducted by a CARB-certified te ar g
technician [=] =, tS
ty hy
-OR-
* via a certified continuously connected OBD telematics device Failure to comply may
> Avehicle with an illuminated MIL, with an outstanding recall or with emissions control Ai Me
components that are not in their “proper configuration” will not meet the compliance (eEMEUEI. ay cl
requirements. Improper or late submission will also lead to non-compliance. . CVO
impoundment.
> Robust enforcement efforts, including plate readers and roadside emissions checks. 30 days to respond to NST.
Daimler Truck Not Legal Advice - USA Regulatory Update

’ ° °
CARB’s Latest Clean Truck Check Timeline
Clean Truck Check Compliance Requirements
High-emitter vehicle 20:
screening
papers (Soetelae
me Lecamtance? requirements Resolve all vehicle
test within 30 days of enforcement holds’
notification. Pay 2023 vehicle Successful completion of a periodic
compliance fee Pay 2024 vehicle vehicle compliance test
compliance fee . . 7
The deadline for vehicles subject to
——— annual compliance requirements is
Jan 1-Dec 31, 2025.
Passing emissions tests can be
Vehicles not meeting these requirements are ——______ Sohiclee comeskencae ays before a
subject to DMV registration holds and monetary fines |early as Oct 1, 2024 _
* Check the database for a vehicle’s specific deadline dates within the six-month window
** Enforcement holds may result from, but may not be limited to, unresolved high emitter notifications and a previous non-
compliance status
https: //ww2.arb.ca.gov/clean-truck-check-requirements-vehicles-subject-semi-annual-compliance
Daimler Truck Not Legal Advice - USA Regulatory Update

Potential Solutions: Offline Tools, Truck in Shop
Offline Tools (Twice per year):
1. CARB Certified 3% party hard wired tool:
a. Requires the vehicle to go into a shop
b. Snapshot twice/year
2. Similar tool built into Diagnostic Link (Does not exist today):
a. Connect to the 9-pin connector
b. Snapshot twice/year
Daimler Truck Confidential Business Information - Proposal for optional OEM solution - CARB Clean Truck Check

Potential Solutions: Online Tools, Over-The-Air
Online OTR and Continuously (Downloads ever 7 days):
3. Third party device connected to 9 pin, i.e. Zonar certified
4. Third party device connected RP1226 (Does not exist today)
a. Will CARB accept this?
5. DTNA Detroit Connect through cTP (Does not exist today)
a. Will CARB accept this?
Note: OTA streaming is required every 7 days to CARB.
Daimler Truck

CARB Clean Truck Check Criteria — Second Phase
MIL-on fault code an emissions relevant diagnostic trouble code (DTC) stored when an OBD
system has confirmed that a malfunction exists and has commanded the MIL on.
Permanent Fault Code (PFC) — Stores with any MIL-on fault code - but is NOT cleared when
faults are cleared via a tool or battery disconnect. PFCs remain active (with no lights) to allow
return to MIL-on at next DTC fail decision. Cleared with DTC pass decision.
Permanent Faults
Warm-up cycle (For Diesel Engines) an ignition cycle with sufficient vehicle operation such that
WUC the coolant temperature has risen by at least 40 degrees Fahrenheit or 22.2 degrees Celsius
Warm-Up from engine start and reaches a minimum temperature of at least 140 degrees Fahrenheit or
Cycles 60 degrees.

Pass Scenario for CARB Clean Truck Check — Second Phase
Ds WU My vehicle does NOT have an active emissions relevant (MIL-on) fault
WU My vehicle does NOT have a store Permanent Fault Code Stored
Permanent Faults
+
WUC ; ;
Warm-Up WU My vehicle HAS accumulated at least 3 WUCs Since DTC Clear
Cycles

FAIL scenario for CARB Clean Truck Check — Second Phase
eo My vehicle has an active emissions relevant (MIL-on) fault
> DTC info available via the Technical Literature Portal

Not Ready for CARB Clean Truck Check — Second Phase
Ds WU My vehicle does NOT have an active emissions relevant (MIL-on) fault
W@W My vehicle does NOT have a store Permanent Fault Code stored

Permanent Faults +

WUC ; ;
Warm-Up My vehicle HAS accumulated at least 3 WUCs since DTC clear
Cycles
The affected vehicle must be operated until it has accumulated 3 Warm-
Up Cycles since the last time DTCs were cleared

Not Ready for CARB Clean Truck Check — Second Phase
Ds WU My vehicle does NOT have an active emissions relevant (MIL-on) fault
My vehicle does NOT have a stored Permanent Fault Code stored

Permanent Faults +

WUC ; ;
Warm-Up My vehicle HAS accumulated at least 15 WUCs since DTC clear
Cycles
The affected vehicle must be operated until it has accumulated 15
Warm-Up Cycles since the last time DTCs were cleared

DETROIT — Fault Code Information
Production Year 2024
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¢ DTC lists can be unique to production year and product configuration
¢ DTC information for all DETROIT powertrains is available on the Technical Literature Portal

CARB Clean Truck Check
¢ DiagnosticLink is NOT an approved tool by CARB for California’s Heavy Duty Vehicle Inspection and
Maintenance Program
* Any panels in DiagnosticLink cannot be used for certification with CARB’s Clean Truck Check
* Do NOT use DiagnosticLink to clear codes prior to a check
* The following slides will provide information on how to use DiagnosticLink to check for MIL status, fault
code status, and warm up cycles which CARB uses to determine a pass/fail/not ready result
° OBD Readiness Criteria: https://ww2.arb.ca.gov/obd-readiness-criteria
¢ Clean Truck Check (CTC) HD/IM:
* — https://ww2.arb.ca.gov/our-work/programs/truckstop-resources/truckstop/regulations /clean-truck-check-hd-im
* — https://ww2.arb.ca.gov/our-work/programs/heavy-duty-diesel-inspection-periodic-smoke-inspection-program
* https://cleantruckcheck.arb.ca.gov/
Daimler Truck

Opening Panel for CARB Clean Truck Check Data Preliminary
Fa [EO ae DO NOT CLEAR CODES!
Qe ee | Clearing codes will reset the warm up cycle counter to 0
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£ > & Fault Codes Fuel System , -
” Telematics »
¢ Ensure J1939 connection is #2 instrumentation __ Tannin i
enabled in Tools > Options |. sia @ emma
* Navigate to ‘Actions’ in the Gf} vo contra B Communication Parameters
toolbar and then under the — 2 ene
‘OBD’ option select ‘Periodic
CARB Smoke Inspection
Program OBD Data Report’
Daimler Truck

Source of Information for Clean Truck Check in Diagnostic Link: Prelimina ry
Actions > OBD > Periodic CARB Smoke Inspection Program OBD Data Report
LA sh ec smen ons reey As of October 2024, Expected Pass/Fail Criteria:
A PASS:
1) No MIL on, no Permanent codes AND
2) Meets readiness threshold for number of
warmup cycles since DTC clear (5 WUC)
[wie ities |
supported OR:
1) No MIL on, BUT a Permanent code
present, AND
~ Fault Codes 2) Meets readiness threshold for number of

|_steeean [stem stene Ganeenitw ewe [| warmup cycles since DTC clear (15 WUC)
[ot
TECH SR SE TT EET TE FAIL:
aC
sru[rm] ——___oepuen [ous rnin |u| N28 Pema [ow Prin mo | NOT READY:
[51 [2 [freOsmermemmewrarncmer [rte fine foe ame NOT READY:

as ———$——————— 1) No MIL on, no Permanent codes, BUT
U OR:

= : : = 1) Permanent code present

2) Readiness threshold not met (15 WUC,
Note: CARB pass/fail criteria are subject to change - contact DTTS for assistance etc)
Daimler Truck

What to do Preliminary
If you fail the test due to a MIL-on
* Diagnose and repair the cause of the MIL
+ — Using TechLit, execute the verification of the fault code to clear the code
* Do NOT use DiagnosticLink to clear codes
If you do not pass the test - “Not Ready” results
+ — Review the reason for the “Not Ready”

¢ — If no MIL or permanent codes perform 5 warm up cycles

* — If permanent code present perform either:

+ Fault code verification to allow module to clear permanent code
+ 15 warm up cycles

What is a warm up cycle?
* Awarm up cycle requires the module/ECU to see a 40F (22C) coolant temperature rise AND minimum coolant temp of 158F (70C)
* You may have to disconnect and reconnect DiagnosticLink to see the counter increment
* The recommended procedure to complete a warm up cycle:

* Key on, engine off ensure coolant temperature is below 120F (49C)

* Start engine and run until coolant temperature exceeds 170F (77C)

* — Stop engine, allow modules to disconnect

* Reconnect DiagnosticLink and check warm up cycle count

* — Allow engine to cool under 120F and repeat as needed
Daimler Truck

CARB Clean Truck Check
¢ DiagnosticLink is NOT an approved tool by CARB for California’s Heavy Duty Vehicle
Inspection and Maintenance Program
¢ Any panels in DiagnosticLink cannot be used for certification with CARB’s Clean Truck
Check
* Do NOT use DiagnosticLink to clear codes prior to a check
* The following slides will provide information on how to use DiagnosticLink to check for
MIL status, fault code status, and warm up cycles which CARB uses to determine a
pass/fail/not ready result
* OBD Readiness Criteria: https://ww2.arb.ca.gov/obd-readiness-criteria
* Clean Truck Check (CTC) HD/IM:
* https://ww2.arb.ca.gov/our-work/programs/truckstop-resources/truckstop/regulations/clean-truck-check-hd-
im
* — https://ww2.arb.ca.gov/our-work/programs/heavy-duty-diesel-inspection-periodic-smoke-inspection-program
* https://cleantruckcheck.arb.ca.gov/
For limited distribution - Contains Preliminary and Pre-decisional Information Material Only

Source of Information for Clean Truck Check in Diagnostic Link:
Actions > OBD > Non-Certified CARB Health Check
EMA = = wn As of October 2024, Expected Pass/Fail Criteria:
seo | __ ees n PASS:
Se 1] Nott on, no Permanent codes AND
[eemaustGasSensor snot suppor J 2) Meets readiness threshold for number of
[eotetatsee |i an cycles since DTC clear (5 WUC)
aC 3
a ————— 1) NoMILon, BUT a Permanent code present,
[NoxConveing Cataystand/orNOxAdsorber stot support i
[Deseiparicumerner@7H eatnot spore | AND
sae Jtetnetsupponed | 2) Meets readiness threshold for number of
ee warmup cycles since DTC clear (15 WUC)
rr FAIL:
BGO a ae comet ne 1) MILON
t (Maen ermmaneamume Orca SNa3eR
— = F : NOT READY:
| eset I owas
ee ee 1) No MIL on, no Permanent codes, BUT
cifissee 2) Readiness threshold not met (5 WUC, etc.)
a
a
SE EE SEE 1) Permanent code present
eae yi 2) Readiness threshold not met (15 WUC, etc)
Ox
Note: CARB pass/fail criteria are subject to change - contact DTTS for assistance
For limited distribution - Contains Preliminary and Pre-decisional Information Material Only

Customer Inquiries CTC
* Our National Account team is fielding calls daily from the large fleets on
this topic
* Expect local fleets that support operations in CA will also be impacted and
have questions
* | caution not to make any legal recommendations
« Recommend the customers have their legal team read and interpret the regulation
for their individual business operation
* The legislation is the same for all. However, how they need to apply it to their
business model will be unique for their business needs.
* We are working on material to help with this, but it’s a work in process.
For limited distribution - Contains Preliminary and Pre-decisional Information Material Only

Detroit Connect Portal Page = ————
- Fleet View are
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* Under Development (Initial concept requirement gathering)
* Customer involvement essential
* Similar view as Safety System Health Check “ - “ “ “ -
* Three Health Status
. Green: Units without any CARB CTC related faults in over 30 days
* Assumption: No faults in >30days should have No MIL, Nothing Active, High Warm Up Cycles
. Units should be routed to CTC test site without any intervention Aireatetenannn mmutente Sa ee NENG eine
* Yellow: Units without any CARB CTC related faults between 7 and 30 days
. Assumptions: No faults between 7 and 30days
* Units should be checked with DiagnosticLink prior to routing to CTC test site “oon om” ” “oo .
. Most likely recently repaired or self-healing event
. Should have No MIL —.
. Use DiagnosticLink to verify system health for a passing CTC test, expected high likelihood unit will be a |= a eee =
acceptable to test .|_ — 1a .
* — Red: Units with current faults or faults