Dodge 2004 Neon SX2 Diagnostic Manual page 605

P1854-TIP BARO OUT OF RANGE —
TEST
9 Turn the ignition off.
Disconnect the hoses from the TIP Solenoid.
Install a plug on the TIP Solenoid hose A connection point.
Connect a vacuum pump to the TIP Solenoid hose B connection point.
NOTE: For the result of this test to be accurate the solenoid must be turned
on. Apply 12 volts and Ground to the appropriate solenoid terminals to turn
the solenoid on.
Attempt to apply 20 inches of vacuum to the TIP Solenoid hose B connection point.
NOTE: Vacuum should escape through the Solenoid hose C connection
point.
Does vacuum escape through the Solenoid hose C connection point?
Yes → Replace the Throttle Inlet Pressure Sensor.
→ Replace the TIP Solenoid.
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
DRIVEABILITY - NGC
Continued
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APPLICABILITY
All