P0AE6 fault code: what it means

P0AE6: Hybrid battery precharge contactor control circuit low on a Lexus hybrid. The car will not go into READY.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

failed precharge relay in the battery junction block
relay wiring fault

P0AE6 by make

Lexus

Hybrid battery precharge contactor control circuit low on a Lexus hybrid. The car will not go into READY.

Usual causes: failed precharge relay in the battery junction block; relay wiring fault

Toyota

Hybrid battery precharge contactor control circuit low: the precharge relay in the battery junction block is not switching. Car will not go into READY.

Usual causes: failed precharge relay (SMRP) in the battery junction block; relay wiring fault; HV ECU fault

What the repair usually costs

Hybrid battery reconditioned exchange (Aqua / Prius C / Axio / Fielder)NZ$1,360–NZ$2,430 · A$1,390–A$2,370
Hybrid battery reconditioned exchange (Prius 20 / 30 / Prius alpha / Prius V)NZ$1,640–NZ$2,790 · A$1,880–A$3,550
Hybrid battery reconditioned exchange (Camry / Estima / Lexus / RAV4)NZ$2,140–NZ$4,150 · A$2,650–A$5,000
Hybrid battery new aftermarket (Aqua / Prius C)NZ$2,080–NZ$3,010 · A$2,350–A$3,610

Not sure what P0AE6 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.