DCA

C1A15 GEAR POSITION

Description

ADAS control unit judges the gear position based on the following signals.
- Current gear position signal transmitted from TCM via CAN communication.
- Value of gear ratio calculated from input speed signal transmitted from TCM via CAN communication.
- Value of gear ratio calculated from the vehicle speed signal transmitted from ABS actuator and electric unit (control unit) via CAN communication.


DTC Logic


DTC DETECTION LOGIC






NOTE:
If DTC "C1A15" is detected along with DTC "U1000", "C1A03", or "C1A04", first diagnose the DTC "U1000", "C1A03", or "C1A04".
- DCA for DTC "U1000".
- DCA for DTC "C1A03".
- 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 10 km/h (6 MPH) or faster for approximately 15 minutes or more.

CAUTION:
Always drive safely.
4.Stop the vehicle.
5.Perform "All DTC Reading" with CONSULT.
6.Check if "C1A15" is detected as the current malfunction in the "Self Diagnostic Result" of "ICC/ADAS".
Is "C1A15" detected as the current malfunction?
YES- .
NO- Intermittent Incident.


Diagnosis Procedure


1. CHECK SELF-DIAGNOSIS RESULTS

Check if "C1A03", "C1A04", or "U1000" is detected other than "C1A15" 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 VEHICLE SPEED SIGNAL

Check that "VHCL SPEED SE" operates normally in "DATA MONITOR" of "ICC/ADAS".

CAUTION:
Be careful of the vehicle speed.
Is the inspection result normal?
YES- GO TO 3.
NO- GO TO 7.

3. CHECK GEAR POSITION

Check that "GEAR" operates normally in "DATA MONITOR" of "ICC/ADAS".

CAUTION:
Be careful of the vehicle speed.
Is the inspection result normal?
YES- GO TO 5.
NO- GO TO 4.

4. CHECK GEAR POSITION SIGNAL

Check that "GEAR" operates normally in "DATA MONITOR" of "TRANSMISSION".
Is the inspection result normal?
YES- GO TO 5.
NO- GO TO 6.

5. CHECK INPUT SPEED SENSOR SIGNAL

Check that "INPUT SPEED" operates normally in "DATA MONITOR" of "TRANSMISSION".
Is the inspection result normal?
YES- Replace the ADAS control unit. Service and Repair.
NO- GO TO 6.

6. 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- Replace the ADAS control unit. Service and Repair.

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

1.Perform "All DTC Reading".
2.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.