P0883 fault code: what it means

P0883: TCM power supply voltage high. Check charging system.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

1. alternator overcharging
2. wiring fault

P0883 by make

What the repair usually costs

• Alternator replace (small / medium car, petrol)NZ$510–NZ$1,020 · A$480–A$1,000

Not sure what P0883 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.