Dodge 2004 Neon SX2 Diagnostic Manual page 381

P0068-MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION —
Continued
TEST
9 Turn the ignition off.
Disconnect the TP Sensor harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the (K4) Sensor ground circuit from the TP Sensor harness
connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
Yes → Go To 10
→ Repair the (K167) Sensor Ground circuit.
No
10 NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage, or terminal push out. Repair as necessary.
If there are no possible causes remaining, view repair.
Repair
11 Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the (K7) 5 Volt Supply circuit from the MAP Sensor
harness connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
Yes → Go To 12
→ Repair the MAP (K7) 5 Volt Supply circuit.
No
12 Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between ground and the (K7) 5 Volt Supply circuit at the
MAP Sensor harness connector.
Is the resistance above 100k ohms?
Yes → Go To 13
→ Repair the short to ground in the (K7) 5 Volt Supply circuit.
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
DRIVEABILITY - NGC
45
APPLICABILITY
All
All
All
All