Brand: FREIGHTLINER
Category: Trucks
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Manual for BUSINESS CLASS M2 - Troubleshooting and error codes + PDF Download
Uploaded: April 8, 2025, 1:49 p.m.
Warranty Summary
Warranty details are located in the Owner's Warranty Information for North America booklet, not within this manual.
This manual provides essential information for operating and understanding your Freightliner BUSINESS CLASS M2 truck. Key operational aspects include:
Starting and Stopping: Follow the ignition sequence for a smooth start. Avoid cranking before ICU self-check is complete.
Driving: Utilize controls for lighting, powertrain, braking, and steering. Understand instruments panel readings for safe operation.
Safety: Adhere to safety precautions for cab entry/exit, battery access, and natural gas operation if applicable.
Maintenance: Perform regular checks as per the Pretrip and Post-Trip Inspection guidelines.
Consult detailed chapters for specific component operations and troubleshooting.
Troubleshooting and error codes
| Indicator Lamp Message(s) | Level | Filter Condition | Required Action |
|---|---|---|---|
| Diesel Particulate Filter Condition | Level 1 | Filter is reaching capacity. | Bring vehicle to highway speeds to allow for an Automatic Regeneration or perform a Parked Regeneration. |
| Diesel Particulate Filter Condition | Level 2 | Filter is now reaching maximum capacity. | To avoid engine derate, bring vehicle to highway speeds to allow for an Automatic Regeneration, or perform a Parked Regeneration as soon as possible. |
| Diesel Particulate Filter Condition | Level 3 | Filter has reached maximum capacity. | Vehicle must be parked, and a Parked Regeneration must be performed. Engine will begin derate. |
| Diesel Particulate Filter Condition | Level 4 | Filter has exceeded maximum capacity. | Vehicle must be parked, and a Service Regeneration must be performed. Check engine operator's manual for details. Engine will shut down. |
| HEST (High Exhaust System Temperature) | Flashing | A regeneration is in progress. | |
| HEST (High Exhaust System Temperature) | Solid | Exhaust components and exhaust gas are at high temperature. When stationary, keep away from people and flammable materials or vapors. |
Troubleshooting and error codes
| Indicator Lamp Message(s) | Level | Filter Condition | Required Action |
|---|---|---|---|
| Diesel Particulate Filter Condition | Level 1 | Filter is reaching capacity. | Bring vehicle to highway speeds to allow for an Automatic Regeneration or perform a Parked Regeneration. |
| Diesel Particulate Filter Condition | Level 2 | Filter is now reaching maximum capacity. | To avoid engine derate, bring vehicle to highway speeds to allow for an Automatic Regeneration, or perform a Parked Regeneration as soon as possible. |
| Diesel Particulate Filter Condition | Level 3 | Filter has reached maximum capacity. | Vehicle must be parked, and a Parked Regeneration must be performed. Engine will begin derate. |
| Diesel Particulate Filter Condition | Level 4 | Filter has exceeded maximum capacity. | Vehicle must be parked, and a Service Regeneration must be performed. Check engine operator's manual for details. Engine will shut down. |
| HEST (High Exhaust System Temperature) | Flashing | A regeneration is in progress. | |
| HEST (High Exhaust System Temperature) | Solid | Exhaust components and exhaust gas are at high temperature. When stationary, keep away from people and flammable materials or vapors. |