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 - P0572-BRAKE SWITCH #1 CIRCUIT LOW
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 |
NOTE:
Verify battery voltage is greater than 10 volts. Record Freeze Frame Data that was set by the related DTC before continuing.With the DRBIII®, read DTCs and record the related Freeze Frame data.Is the Good Trip Counter displayed and equal to zero?Yes --> Go To 2No --> Refer to the INTERMITTENT CONDITION .Perform POWERTRAIN VERIFICATION TEST VER - 5 . |
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| 2 | Turn the ignition off. Remove the Brake Lamp Switch and disconnect the harness connector. Measure the resistance between the (Z1) Ground circuit terminal and the (K29) Brake Switch Signal terminal at the Brake Lamp Switch. Apply and release the brake pedal plunger while monitoring the ohmmeter. Does the resistance change from below 5.0 ohms to an open circuit? Yes --> Go To 3 No --> Replace the Brake Lamp Switch. Perform POWERTRAIN VERIFICATION TEST VER - 5 . |
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| 3 | Turn the ignition off. Disconnect the PCM harness connectors. Measure the resistance between ground and the (K29) Brake Switch Signal circuit in the Brake Lamp Switch harness connector. Is the resistance below 100 ohms? Yes --> Repair the short to ground in the (K29) Brake Switch Signal circuit. Perform POWERTRAIN VERIFICATION TEST VER - 5 . No --> Go To 4 |
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| 4 |
NOTE:
Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary. Using the schematics as a guide, inspect the wire harness and connectors. Pay particular attention to all Power and Ground circuits.If there are no possible causes remaining, view repair.RepairReplace and program the Powertrain Control Module in accordance with the Service Information.Perform POWERTRAIN VERIFICATION TEST VER - 5 . |
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