DTC P2401 Evaporative Emission System Leak Detection Pump Control Circuit Low : DTC P2402 Evaporative Emission System Leak Detection Pump Control Circuit High: Description

WARNING: This page is about a different car, the 2006 Scion tC. However, it is still accessible from the selected car via links, so may be relevant.

Refer to EVAP SYSTEM (see ).

EVAPORATIVE EMISSION SYSTEM REFERENCE CHART

DTCs	Monitoring Item	Malfunction Condition	Trouble Area	Detection Timing	Detection Period
P2401	Leak detection pump stuck OFF (built-in pump module)	P043E, P043F, P2401, P2402, P2419 are present when one of the following conditions is met during key-off EVAP monitor: EVAP pressure just after reference pressure measurement is higher than -1 kPa-g (755 mmHg-a) Reference pressure is lower than -4.3 kPa-g (730 mmHg-a) Reference pressure is higher than-1.2 kPa-g (753 mmHg-a) Reference pressure is not saturated Difference of first reference pressure and second reference pressure is 0.3 kPa-g (2 mmHgg) or more NOTE: These values are typical.	Canister pump module (reference orifice, leak detection pump, vent valve) Connector / wire harness (canister pump module - ECM) ECM	Ignition OFF	2 trips
P2402	Leak detection pump stuck ON (built-in pump module)			Ignition OFF	2 trips