DCA

C1A03 VEHICLE SPEED SENSOR

DTC Logic


DTC DETECTION LOGIC






NOTE:
If DTC "C1A03" is detected along with DTC "U1000" or "C1A04", first diagnose the DTC "U1000" or "C1A04".
- DCA for DTC "U1000".
- DCA for DTC "C1A04".

DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

1.Start the engine.
2.Turn the DCA system ON.
3.Drive the vehicle at 30 km/h (19 MPH) or more.

CAUTION:
Always drive safely.
4.Stop the vehicle.
5.Perform "All DTC Reading" with CONSULT.
6.Check if the "C1A03" is detected as the current malfunction in "Self Diagnostic Result" of "ICC/ADAS".
Is "C1A03" detected as the current malfunction?
YES- .
NO- Intermittent Incident.


Diagnosis Procedure


1. CHECK SELF-DIAGNOSIS RESULTS

Check if "C1A04" or "U1000" is detected other than "C1A03" in "Self Diagnostic Result" of "ICC/ADAS".
Is any DTC detected?
YES- Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
Testing and Inspection.
NO- GO TO 2.

2. CHECK DATA MONITOR

1.Start the engine.
2.Drive the vehicle.
3.Check that the value of "VHCL SPEED AT" is almost the same as the value of "VHCL SPEED SE" in "DATA
MONITOR" of "ICC/ADAS".

CAUTION:
Be careful of the vehicle speed.
Is the inspection result normal?
YES- Replace the ADAS control unit. Service and Repair.
NO- GO TO 3.

3. CHECK TCM SELF-DIAGNOSIS RESULTS

1.Perform "All DTC Reading".
2.Check if any DTC is detected in "Self Diagnostic Result" of "TRANSMISSION".
Is any DTC detected?
YES- Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
Testing and Inspection.
NO- GO TO 4.

4. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS

Check if any DTC is detected in "Self Diagnostic Result" of "ABS".
Is any DTC detected?
YES- Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
Testing and Inspection.
NO- Replace the ADAS control unit. Service and Repair.