Diagnostic Procedure
WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSIS PROCEDURE - P0581-SPEED CONTROL SWITCH #1 HIGH
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 |
NOTE:
Do not press any of the Speed Control Switch buttons. Ignition on, engine not running.With the DRBIII®, read the Speed Control voltage.Is the Speed Control voltage above 4.8 volt?Yes --> Go To 2No --> Refer to the INTERMITTENT CONDITION .Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC . |
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| 2 | Turn the ignition off. Remove the Speed Control Switches from the steering wheel. Measure the resistance across each Speed Control Switch. Monitor the ohmmeter while pressing each function button on each switch. Resume/Accel - 15,400 ohms Cancel - 909 +/- 9 ohms Decel (Coast) - 2940 +/- 30 ohms On/Off - 0 ohms Set - 6650 +/- 66 ohms Does the function on the Speed Control Switches have the correct ohm value? Yes --> Go To 3 No --> Replace the Speed Control Switch that had the incorrect resistance value. Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC . |
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| 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 voltage. Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC . No --> Go To 4 |
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| 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 TERMINALS 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 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 .No --> Repair the (K4) Sensor Ground circuit for an open.Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC . |
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