Symptom List:
P 2151-F U EL P RESS S OLEN OID S IGN AL P LAU S IB ILITY HIGH
P 2151-F U EL P RESS S OLEN OID S IGN AL P LAU S IB ILITY LOW
P 2500-F U EL P RESS U RE S OLEN OID CIRCU IT OP EN CIRCU IT
P 2501-F U EL P RESS U RE S OLEN OID CIRCU IT S HORTED TO
GR OU N D OR B +
Te s t N o t e : Al l s y m p t o m s l i s t e d a b o v e a r e d i a g n o s e d u s i n g t h e s a m e t e s t s .
Th e title fo r th e te sts w ill be P 2151-F UEL P RES S SOLENOID
SIGNAL PLAUSIBILITY HIGH.
Wh e n Mo n i to re d a n d S e t Co n d it i o n :
P 2500-F U EL P RE S S URE S OLENOID CIRCU IT OP EN CIR CU IT
Wh en Mon it or ed: Wit h t h e ign it ion on .
Set Con dit ion : Th e E CM det ect s an open or sh ort t o gr oun d on t he F u el Pr essur e Solen oid
Con tr ol cir cu it .
P 2501-F U EL P RE S S URE S OLENOID CIRCU IT SHOR TED TO GROU N D OR B +
Wh en Mon it ored: Wit h th e ign it ion on a nd t h e ECM a tt em pt in g t o a ct ua t e t he F u el
Pr essur e Solenoid.
Set Con dit ion : The ECM det ect s excessive cu r rent on th e F u el Pr essu r e Solen oid Con t r ol
cir cuit wh en a tt em pt in g to a ct ua t e t he F uel P r essu r e Solen oid.
POSSIBLE CAUSES
CH E CKIN G TH E E NGIN E CONTROL RE LAY S YSTE M
INTERMITTENT CONDITION
FUE L P RE SSURE SOLE NOID CON TROL SH ORTE D TO VOLTAGE
FUEL PRESSURE SOLENOID CONTROL CIRCUIT SHORTED TO GROUND
FUEL PRESSURE SOLENOID CONTROL CIRCUIT OPEN
FUEL PRESSURE SOLENOID
ENGINE CONTROL MODULE
173
DRI V EABI LI T Y - DI ESEL
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