Details On DTCs

WARNING: This page is about a different variant/trim than selected.

P0402-00: (PCM - VIN Y) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	EGR flow excessive detected
Detection condition	Determination conditions	The EGR volume is higher than the specification for the target value for a continuous specified time.
	Preconditions	If any of the following conditions is met under condition A or condition B: Condition A: Mass air flow after the EGR valve is close: 4.4 g {0.16 oz} or more Engine speed: 2, 600 rpm or less Purge control: not active Fuel injection control: during fuel cut The following DTCs are not detected: Intake valve timing control system: P0010:00, P0011:00, and P0012:00 CKP sensor and intake CMP sensor: P0016:00 TP sensor: P0122:00, P0123:00, and P2135:00 ECT sensor No. 1: P0116:00, P0117:00 and P0118:00 MAP sensor: P0107:00, and P0108:00 EGR valve control system: P0403:00 MAF sensor: P0100:00, P0101:00 and U060F:00 Exhaust gas pressure sensor: P0472:00 and P0473:00 Boost pressure sensor: P0237:00 and P0238:00 Condition B The difference between the average engine speed when the EGR valve is open and the average engine speed when the EGR valve is fully closed: -550-460 rpm Intake manifold pressure before the EGR valve is open: specification Intake manifold pressure after the EGR valve is open: specification The following DTC is not detected: EGR flow insufficient detected: P0401:00
	Drive cycle	2
	Self test type	CMDTC self test
	Sensor used	EGR valve MAF sensor MAP sensor Exhaust gas pressure sensor
Fail-safe	Not applicable
Vehicle status when DTCs are output	Not applicable
Possible cause	Erratic signal to PCM MAF sensor signal malfunction MAP sensor signal malfunction Input signal part connector or terminals malfunction Input signal part related circuit malfunction EGR valve malfunction (stuck open) PCM malfunction