DTC C0031:19 [DSC HU/CM]
DTC C0031:19 [DSC HU/CM]
SM2335031
id040262003800
Outline
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System malfunction location |
ABS wheel-speed sensor (LF) |
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Detection condition
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• The DSC HU/CM detects that the signal current of the ABS wheel-speed sensor (LF) is high.
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Fail-safe
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Refer to “DTC Table” and “Fail-safe Function Malfunction Contents Table”. (See DTC TABLE [DSC HU/CM (US)].)
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Possible cause
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• ABS wheel-speed sensor (LF) connector or terminals malfunction
• DSC HU/CM connector or terminals malfunction
• Short to power supply in ABS wheel-speed sensor (LF) signal circuit
• ABS wheel-speed sensor (LF) malfunction
• DSC HU/CM malfunction
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Diagnostic Procedure
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Step |
Inspection |
Results |
Action |
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1
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INSPECT ABS WHEEL-SPEED SENSOR (LF) CONNECTOR FOR MALFUNCTION
• Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.)
• Are the connector and terminal 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 the malfunctioning location and perform the repair completion verification.
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2
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INSPECT DSC HU/CM CONNECTOR FOR MALFUNCTION
• Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.)
• Are the connector and terminal 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 the malfunctioning location and perform the repair completion verification.
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3
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INSPECT ABS WHEEL-SPEED SENSOR (LF) SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY
• Inspect the applicable circuit for a short to power supply. (See CIRCUIT INSPECTION.)
• Is the circuit 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 the malfunctioning location and perform the repair completion verification.
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4
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INSPECT ABS WHEEL-SPEED SENSOR (LF) FOR MALFUNCTION
• Inspect the applicable part. (See FRONT ABS WHEEL-SPEED SENSOR INSPECTION.)
• Is the part 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 the malfunctioning location and perform the repair completion verification.
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Repair completion verification 1
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VERIFY THAT VEHICLE IS REPAIRED
• Install/connect the part removed/disconnected during the troubleshooting procedure.
• Clear the DTC recorded in the memory. (See CLEARING DTC.)
• Perform the DTC inspection for the DSC HU/CM. (See DTC INSPECTION.)
• Is the same Pending DTC present?
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Yes
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Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, perform the diagnosis from Step 1.
• If the malfunction recurs, replace the DSC HU/CM, then go to the next step. (See DSC HU/CM REMOVAL/INSTALLATION [L.H.D. (US)].)
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No
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Go to the next step.
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Repair completion verification 2
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VERIFY IF OTHER DTCs DISPLAYED
• Perform the DTC inspection. (See DTC INSPECTION.)
• Are any DTCs displayed?
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Yes
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Repair the malfunctioning location according to the applicable DTC troubleshooting.
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No
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DTC troubleshooting completed.
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