P1237 ISUZU Possible Causes
- Faulty high-pressure fuel regulator
- High-pressure fuel regulator wiring harness is open or short-circuited
- Poor electrical connection in the high-pressure fuel regulator circuit
How to Fix P1237 ISUZU 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
- Engine light on (or engine warning light soon to be active)
P1237 ISUZU Meaning
The high-pressure fuel regulator circuit shorted to ground is the generic description for the P1237 Isuzu code, but the manufacturer may have a different description for your vehicle model and year. Currently, we do not have additional information about the Isuzu P1237 OBDII code.