DTC U3003:68 [ELECTRIC PARKING BRAKE]
id040257256100
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Description |
Abnormal electric parking brake control module power supply |
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Detection condition
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• The electric parking brake control module detected that the electric parking brake motor gear unit position is unknown.
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Fail-safe
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Not applicable
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Possible cause
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• The electric parking brake motor gear unit stops at the position where it is neither on the operation nor release side.
• Electric parking brake control module malfunction
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System wiring diagram
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Not applicable
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Diagnostic Procedure
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Step |
Inspection |
Action |
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1
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VERIFY ALL SYSTEM DTCs
• Switch the ignition off.
• Switch the ignition ON (engine off or on) and wait for 10 s or more.
• Perform a CMDTC self-test using the M-MDS.
• Are any DTCs other than DTC U3003:68 displayed?
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Yes
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If a procedure which verifies other DTCs is included in the diagnostic procedure of the displayed DTC:
• Go to the next step.
If a procedure which verifies other DTCs is not included in the diagnostic procedure of the displayed DTC:
• Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
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No
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Go to the next step.
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2
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VERIFY THAT REPAIRS HAVE BEEN COMPLETED
• Clear the DTC for the electric parking brake control module using the M-MDS.
• Perform the following procedure 3 times or more.
• Retrieve the electric parking brake control module DTCs using the M-MDS.
• Is the same DTC displayed?
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Yes
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Replace the electric parking brake control module, then go to the next step.
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No
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System is normal. (Explain to the customer that a DTC is displayed by disconnecting the negative battery cable during electric parking brake operation.)
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3
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VERIFY IF OTHER DTCs DISPLAYED
• Are any other DTCs displayed?
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Yes
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Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
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No
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DTC troubleshooting completed.
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