DTC U0515:00 [DSC HU/CM]

id040262892500

DTC
U0515:00
Abnormal signal from cruise control switches
DETECTION CONDITION
•  The DSC HU/CM received error signals from the cruise control switches with the ignition switched ON (engine off or on).
FAIL-SAFE FUNCTION
Refer to DTC TABLE. (See DTC TABLE [DSC HU/CM].)
POSSIBLE CAUSE
•  Cruise control switch malfunction
•  Start stop unit malfunction
SYSTEM WIRING DIAGRAM
—

Diagnostic procedure

STEP

INSPECTION

ACTION
1
INSPECT CRUISE CONTROL SWITCH
•  Inspect the cruise control switch.
•  Is the cruise control normal?
Yes
Go to the next step.
No
Replace the cruise control switch, then go to the next step.
(See CRUISE CONTROL SWITCH REMOVAL/INSTALLATION [SKYACTIV-G 1.3, SKYACTIV-G 1.5].)
(See CRUISE CONTROL SWITCH REMOVAL/INSTALLATION [SKYACTIV-D 1.5].)
2
PERFORM START STOP UNIT DTC INSPECTION
•  Switch the ignition to off.
•  Verify DTCs for the start stop unit using the M-MDS.
•  Is the DTC displayed?
Yes
Go to applicable DTC inspection.
(See DTC TABLE [START STOP UNIT].)
No
Go to the next step.
3
VERIFY THAT THE SAME DTC IS NOT PRESENT
•  Clear DTC for the DSC HU/CM using the M-MDS.
•  Are the same DTCs present?
Yes
Repeat the inspection from Step 1.
If the malfunction recurs, replace the start stop unit, then go to the next step.
(See START STOP UNIT REMOVAL/INSTALLATION.)
No
Go to the next step.
4
VERIFY THAT NO OTHER DTCS ARE PRESENT
•  Are any other DTCs output?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [DSC HU/CM].)
No
DTC troubleshooting completed.