P1D72 fault code: what it means

P1D72: Open high voltage cable (Wrangler 4xe). Vehicle may not start, 'Service High Voltage System' message. Check P1/P2 HV connector seals.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

1. water in HV connector
2. HV cable/connector fault

P1D72 by make

Not sure what P1D72 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.