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Engine Control System (Diagnostic Codes (P1235-P2610) & Circuit Tests): Diagnosis Lexus IS III

DTC SUMMARY

DTC No.Detection ItemDTC Detection ConditionTrouble AreaMILMemory
P2420Evaporative Emission System Switching Valve Control Circuit HighFollowing condition met during key-off EVAP monitor: EVAP pressure change when vent valve closed (on) less than 0.3 kPa(gauge) [2.25 mmHg(gauge)]Canister pump module (reference orifice, leak detection pump, vent valve) Connector/wire harness (Canister pump module - ECM) Canister (filter inside canister clogged) ECMComes onDTC stored
DTC No.Monitoring ItemDetection TimingDetection Logic
P2420Vent valve stuck open (vent)While engine switch off2 trip

HINT

The vent valve is built into the canister pump module.

DTC No.Detection ItemDTC Detection ConditionTrouble AreaMILMemory
P2610ECM / PCM Internal Engine Off Timer PerformanceECM internal malfunction.ECMComes onDTC stored
DTC No.Monitoring ItemDetection TimingDetection Logic
P2610Soak timer (built into ECM)Engine running2 trip