Symptom List:
P 2025-IN TAKE P RES S URE S ENS OR S IGN AL VOLTAGE TOO LOW
P 2030-IN TAKE P RES S URE S ENS OR S IGN AL VOLTAGE TOO LOW
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 s ts w ill be P 2025-IN TAKE P RES SU RE
SENS OR S IGN AL VOLTAGE TOO LOW.
POSSIBLE CAUSES
INTERMITTENT CONDITION
IN TAKE P RE SSURE SENSOR 5 VOLT SUP PLY
IN TAKE P RE SSURE SENSOR
IN TAKE P RE SSURE SENSOR SIGN AL CIRCU IT SH ORTE D TO GROUND
IN TAKE P RE SSURE SENSOR SIGN AL AND GROUN D CIRCU ITS SH ORTE D TOGE TH ER
ENGINE CONTROL MODULE
IN TAKE P RE SSURE SENSOR SIGN AL CIRCU IT OP EN
TE S T ACTION AP PLICAB ILITY
1 NOTE: If the ECM detects and stores a DTC, the ECM also stores the
e n gi n e /ve h ic le o p e ra ti n g c o n d i tio n s u n d e r w h ic h th e D TC w a s s e t. S o m e o f
these conditions are displayed on the DRB at the same time the DTC is
displayed.
NOTE: Before erasing stored DTCs, record these conditions. Attempting to
duplicate these conditions may assist when checking for an active DTC.
NOTE: Ensure all turbocharger inlet and outlet tubes are connected prop-
e rly, w ith o u t da m a g e a n d re s tric ti o n be fo re c o n t in u in g w i th th is te s t. Als o
ensure the Boost Pressure Servo Motor and Servo Motor rod are attached
an d fu n c ti o n in g p rop e rly.
Tur n th e ign it ion on .
Wit h th e DRB, er a se E CM DTCs.
Cycle t h e ign it ion key on a n d off severa l tim es, lea vin g th e key on for a t lea st 10
secon ds at a t im e.
Wit h th e DRB, r ea d E CM DTCs.
Did t h is DTC set a ga in ?
All
Ye s → Go To 2
No → Go To 7
2 Tur n th e ign it ion off.
Discon n ect t he In t a ke P r essu r e Sen sor ha r n ess con n ect or.
Tur n th e ign it ion on .
Mea su r e t h e volta ge bet ween gr ou n d an d t h e In t a ke Pr essu r e Sen sor 5 Volt Su pply
cir cu it .
Is t h e volt a ge above 4.8 volt s?
All
Ye s → Go To 3
No → Repa ir t h e In t a ke P ressur e Sen sor 5 Volt Su pply cir cu it for a n
open .
Per for m ROAD TE ST VE RIF ICATION - VER-2.
131
DRI V EABI LI T Y - DI ESEL
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