P244C: Exhaust Temperature Too Low For Particulate Filter Regeneration Bank 1 — what it means, the affected system and what to check before replacing parts.
Meaning, symptoms, causes and checks
Exhaust Temperature Too Low For Particulate Filter Regeneration Bank 1. Basic catalogue definition; diagnostic details have not yet been reviewed.
Affected system: Powertrain
Symptoms
- Warning light may illuminate
- Related system function may be impaired
- Vehicle-specific symptoms vary
Possible causes
- Exhaust or emissions plumbing leak, restriction, valve fault, sensor fault, or damaged wiring
- Related wiring, connector, power or ground fault
- Vehicle-specific mechanical or control issue
What to check
- Record stored and pending codes and freeze-frame data
- Inspect the relevant exhaust or emissions plumbing and electrical connections, then compare commanded operation with sensor feedback during the enable conditions.
- Confirm measured values against the vehicle service information
- Retest under the conditions that set the code
- Inspect the relevant exhaust or emissions plumbing and electrical connections, then compare commanded operation with sensor feedback during the enable conditions.
- Repair the verified cause and confirm the code does not return
Also written as: P244C-00, P244C00 (some scan tools add the fault-type byte, e.g. -00).