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Using M.U.T.-III, check the data list (Refer to  - data
list reference table).
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- Item 134: Brake switch
- Item 135: Stop lamp switch
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Q.
Is the check result normal?
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 Check the stop lamp switch system (Refer to - Diagnosis
Code Procedures, Code No.P1571: Malfunction of the stop lamp switch system). Then go to Step 3
.
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Q.
When the brake pedal is depressed, is the cruise control cancelled?
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 It can be assumed that this malfunction is intermittent (Refer to GROUP 00 - How
to Use Troubleshooting/Inspection Service Points, How to Cope with Intermittent Malfunction ).
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Replace the engine-ECU (Refer to GROUP 13A - Engine-ECU ).
Then go to Step 3.
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Q.
When the brake pedal is depressed, is the cruise control cancelled?
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The procedure is complete.
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