Symptom List:
P 0115-ENGIN E COOLAN T TEMP S EN S OR CIRCU IT S IGN AL VOLT-
AGE TO O HI GH
P 2054-ENGIN E COOLAN T TEMP S ENS OR CIRCU IT S IGN AL VOLT-
AGE TO O HI GH
P 2054-ENGIN E COOLAN T TEMP S ENS OR CIRCU IT S IGN AL VOLT-
AGE TO O L OW
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 0115-EN GIN E COOLAN T TEMP
SENS OR CIRCUIT S IGN AL VOLTAGE TOO HIGH.
Wh e n Mo n i to re d a n d S e t Co n d it i o n :
P 0115-EN GIN E COOLAN T TEMP S EN SOR CIRCU IT SIGNAL VOLTAGE TOO
HIGH
Wh en Mon it or ed: Wit h t h e ign it ion on .
Set Con dit ion : Th e E ngine Coola n t Tem per a t u re Sen sor Sign a l volt a ge is a bove 4.98 volt s
for m or e t h a n 3 secon ds.
P 2054-EN GINE COOLAN T TE MP S ENS OR CIRCU IT SIGNAL VOLTAGE TOO
HIGH
Wh en Mon it or ed: Wit h t h e ign it ion on .
Set Con dit ion : Th e E ngine Coola n t Tem per a t u re Sen sor Sign a l volt a ge is a bove 4.98 volt s
for m or e t h a n 3 secon ds.
P 2054-EN GINE COOLAN T TE MP S ENS OR CIRCU IT SIGNAL VOLTAGE TOO
LOW
Wh en Mon it or ed: Wit h t h e ign it ion on .
Set Con dition :
POSSIBLE CAUSES
INTERMITTENT CONDITION
ECM ECT SE NSOR SIGNAL CIRCUIT SH ORTE D TO VOLTAGE
ECT SENSOR GROUND CIRCUIT OPEN
ECT SENSOR
ECT SE N SOR SIGNAL CIRCUIT OP E N
ENGINE CONTROL MODULE
44
DRI V EABI LI T Y - DI ESEL