P0401 - Egr System Performance - Chrysler Sebring 2005 Service Manual

S y m p to m :
P 0401 - EGR S YS TEM P ERF ORMAN CE
Wh e n Mo n ito re d a n d S e t Co n d itio n :
P 0401 - EGR S YS TEM P ERF ORMAN CE
Wh en Mon it or ed: E n gin e r u n n in g for gr ea t er t h a n t wo m in u t es wit h t h e E n gin e Coola n t
Tem p gr ea t er t h a n 70°C (158°F ). E GR a ct ive. Less t h a n 8500 feet . Am bien t t em per a t u r e
gr ea t er t h a n 20°F (-6°C)
Set Con dit ion : Th e P CM closes t h e E GR va lve wh ile m on it or in g t h e O2 Sen sor sign a l.
On ce a closed E GR fu elin g sa m ple h a s been est a blish ed t h e P CM t h en r a m ps in E GR a n d
a ddit ion a l fu elin g wh ile m on it or in g t h e O2 Sen sor sign a l in t h e open st a t e. A fu elin g
sa m ple is a ga in est a blish ed. Th e P CM t h en com pa r es t h e t wo differ en t O2 Sen sor sign a l
r ea din g (fu elin g sa m ples). If a la r ger t h a n expect ed va r ia t ion is det ect ed, a soft fa ilu r e is
r ecor ded. Th r ee soft fa ilu r es set a on e t r ip fa ilu r e. Aft er t wo fa iled t r ips, a DTC is set a n d
t h e MIL is illu m in a t ed.
GOOD TRIP E QUAL TO ZE RO
E GR VALVE OP E N AT IDLE
E GR VALVE ASSE MBLY INSP E CTION
E GR SOLE NOID ASSE MBLY
E GR SOLE NOID GROUND CIRCUIT OP E N
E GR SOLE NOID CONTROL CKT SH ORT TO GND
E GR SOLE NOID CONTROL CKT SH ORTE D TO VOLTAGE
E GR SOLE NOID CONTROL CKT OP E N
P CM - E GR OP E N
P CM - E GR CLOSE D
TES T
1 Tu r n t h e ign it ion on .
Wit h t h e DRBIII , r ea d DTCs a n d r ecor d t h e r ela t ed F r eeze F r a m e da t a .
Is t h e Good Tr ip displa yed a n d equ a l t o zer o?
Yes
No
P OS S IB LE CAU S ES
ACTION
→ Go To 2
→ Refer t o t h e INTE RMITTE NT CONDITION sym pt om in t h e
Dr ivea bilit y ca t egor y.
P er for m P OWE RTRAIN VE RIF ICATION TE ST VE R - 5.
DRI V EABI LI T Y - N GC
147
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