What Does P260E Mean?
The PCM detected a malfunction in the circuit that controls the Diesel Particulate Filter (DPF) regeneration indicator lamp. The lamp may not illuminate when regeneration is needed or active, preventing driver awareness of filter maintenance requirements.
Common Causes
35%
Burned out DPF regeneration indicator lamp
30%
Open circuit in lamp wiring harness
20%
Failed instrument cluster lamp driver circuit
10%
Corroded lamp socket or connector terminals
5%
Blown fuse for DPF indicator circuit
Diagnostic Steps
1
Step 1: Check fuse for DPF regeneration indicator lamp circuit; replace if blown and verify lamp operation
2
Step 2: Use scan tool to command DPF lamp ON to test bulb and circuit functionality
3
Step 3: Access instrument cluster and test DPF indicator lamp continuity; replace bulb if open
4
Step 4: Measure voltage at lamp socket with lamp commanded on; should see battery voltage and proper ground
5
Step 5: Inspect wiring between instrument cluster and PCM for opens, shorts, or damaged connectors
Estimated Repair Cost
$75 - $400
Parts + labor, varies by vehicle and location
The PCM detected a malfunction in the circuit that controls the Diesel Particulate Filter (DPF) regeneration indicator lamp. The lamp may not illuminate when regeneration is needed or active, preventing driver awareness of filter maintenance requirements.
The most common cause of P260E (Diesel Particulate Filter Regeneration Lamp Control Circuit) is: Burned out DPF regeneration indicator lamp
Typical repair costs for P260E range from $75 to $400, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Driver will not be alerted to DPF regeneration needs which can lead to filter clogging, reduced performance, and potential engine damage if ignored. Repair promptly to maintain emissions system health.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P260E to identify the root cause.
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Quick Info
Category
Powertrain
System
Emissions / Warning Lamps
Difficulty
Type
Generic (SAE)
Recommended Tools
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