P1231 LAND-ROVER Possible Causes
- Faulty high-speed fuel pump
- High-speed fuel pump wiring harness open or shorted
- Poor electrical connection in high-speed fuel pump circuit
How to Fix P1231 LAND-ROVER Code?
Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
- Check Engine Light on (or service engine soon warning light)
P1231 LAND-ROVER Meaning
The Engine Control Module (ECM) has powered the high-speed fuel pump and detected no current flow in the circuit.