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Component Location

General Description

EGR cooler was installed to supply combustion chamber with more EGR to satisfy a law regarding exhast gas.

EGR cooler bypass vavle makes it possible to recirculate EGR gas to combustion chamber without cooling when EGR gas temperature is low.

DTC Description

P245D is set when EGR cooler bypass valve control circuit is short to battery for 1 sec.

DTC Detecting Condition

Item	Detecting Condition			Possible Cause
DTC Strategy	• Voltage Monitoring			• EGR cooler bypass valve circuit • EGR cooler bypass solenoid component
Enable Conditions	• IG key ON
Threshold value	• Control circuit is short to battery
Diagnosis Time	• 1 sec.
Fail Safe	Fuel cut	NO	• -
	EGR Off	NO
	Fuel Limit	NO
	Check Lamp	NO

Specification

Resistance

28.3 ~ 31.1Ω (20℃)

Diagnostic Circuit Diagram

Signal Waveform & Data

Fig 1) Control signal waveform when engine coolant temperature is lower than 50℃ (not warmed condition)

(+) duty 5%

Fig 2) Control signal waveform when engine coolant temperature is higher than 50℃ (warmed condition)

(+) duty 95%