DTC P0573:00 [MZI-3.7 (PCM CONNECTOR (3 TYPES))]
id0102e4314600
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DTC P0573:00 |
Brake switch A circuit high |
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DETECTION CONDITION
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• This DTC indicates the brake switch is stuck.
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POSSIBLE CAUSE
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• Brake switch No.1 mis installation
• Connector or terminal malfunction
• Brake switch No.1 circuit malfunction
• Brake switch No.1 malfunction
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
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Yes
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Go to the next step.
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No
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Record FREEZE FRAME DATA on the repair order, then go to the next step.
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2
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VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related Service Information available?
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Yes
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Perform repair or diagnosis according to the available Service Information.
• If the vehicle is not repaired, go to the next step.
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No
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Go to the next step.
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3
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INSPECT THE OPERATION OF THE BLAKE LIGHT
• Turn the ignition switch to the ON position (engine off).
• Depress and release the brake pedal and check the blake light operation.
• Do the blake light operate correctly?
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Yes
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Go to the next step.
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No
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Repair or replace suspected part, then go to Step 9.
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4
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INSPECT THE CRUISE CONTROL OPERATION
• Check for cruise control operation.
• Does the cruise control operate correctly?
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Yes
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Go to the next step.
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No
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Repair or replace suspected part, then go to Step 9.
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5
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INSPECT BRAKE SWITCH AND PCM CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch off.
• Disconnect the brake switch and the PCM connector.
• Inspect for poor connection (such as damaged/ pulled-out pins, corrosion).
• Are there any malfunction?
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Yes
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Repair or replace suspected part, then go to Step 9.
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No
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Go to the next step.
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6
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INSPECT BRAKE SWITCH NO.1 CIRCUIT MALFUNCTION
• Brake switch and PCM connectors are disconnected.
• Turn the ignition switch to the ON position (engine off).
• Measure the voltage between PCM terminal 1S (wiring harness-side) and body ground.
• Verify the following values when the brake pedal to the floor and releasing.
• Is the voltage normal?
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Yes
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Go to the next step.
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No
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Repair or replace suspected part, then go to Step 9.
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7
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INSPECT BRAKE SWITCH
• Inspect the brake switch.
(See BRAKE SWITCH INSPECTION.)
• Is there any malfunction?
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Yes
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Repair or replace suspected part, then go to Step 9.
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No
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Go to the next step.
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8
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INSPECT FOR CORRECT PCM OPERATION
• Disconnect all the PCM connectors.
• Visually inspect for:
• Connect all the PCM connectors and verify that they seat correctly.
• Retrieve DTCs using the M-MDS.
• Is the PENDING CODE for this DTC present?
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Yes
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Go to the next step.
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No
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The system is correctly. Go to the next step.
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9
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VERIFY TROUBLESHOOTING OF DTC P0573:00 HAS BEEN COMPLETED
• Verify that all disconnected connectors reconnected.
• Clear the DTC from the PCM memory using the M-MDS.
• Depress and release the brake pedal.
• Retrieve DTCs using the M-MDS.
• Is the PENDING CODE for this DTC present?
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Yes
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Repeat the inspection from Step 1.
• If the malfunction recurs, replace the PCM.
Go to the next step.
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No
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Go to the next step.
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10
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VERIFY AFTER REPAIR PROCEDURE
• Perform the “AFTER REPAIR PROCEDURE”.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
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No
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Troubleshooting completed.
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