Dodge 2004 Neon SX2 Diagnostic Manual page 553

P0581-SPEED CONTROL SWITCH #1 HIGH —
TEST
3 Turn the ignition off.
Disconnect the Speed Control On/Off Switch harness connector.
Disconnect the Speed Control Resume/Accel Switch harness connector.
Disconnect the PCM harness connector.
Measure the voltage of the (V37) S/C Switch Signal circuit at the Speed Control
harness connector.
Is the is the voltage above 5.0 volts?
Yes → Repair the (V37) S/C Switch Signal circuit shorted to the battery
No
4 NOTE: The measurement must be taken from both Speed Control Switch
harness connector.
Turn the ignition off.
Disconnect the Speed Control On/Off Switch harness connector.
Disconnect the Speed Control Resume/Accel Switch 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 Speed Control
harness connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms for both measurement?
Yes → NOTE: Before continuing, check the PCM harness connector
No
ACTION
voltage.
Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.
→ Go To 4
terminals for corrosion, damage or terminal push out. Repair as
necessary. Replace and program the Powertrain Control Module
in accordance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.
→ Repair the (K4) Sensor Ground circuit for an open.
Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.
DRIVEABILITY - NGC
Continued
217
APPLICABILITY
All
All