P1280 Possible Causes
- Faulty Injection Control Pressure (ICP) sensor
- Injection Control Pressure sensor harness is open or shorted
- Poor electrical connection in the Injection Control Pressure sensor circuit
- Faulty Powertrain Control Module (PCM)
How is P1280 code repair performed?
Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Engine light on (or service engine soon warning light)
P1280 Meaning
The Powertrain Control Module (PCM) monitors the injection control pressure circuit. This Diagnostic Trouble Code (DTC) indicates that the injector control signal is outside the self-test range (low).