C1A15

C1A15 GEAR POSITION

Description

ICC sensor integrated 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".
- Refer to "DTC Logic" Cruise Control for DTC "U1000".
- Refer to "DTC Logic" C1A03 for DTC "C1A03".
- Refer to "DTC Logic" C1A04 for DTC "C1A04".

DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

1.Start the engine.
2.Turn the MAIN switch of ICC 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- Refer to "Diagnosis Procedure" .
NO- Refer to "Intermittent Incident" 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
"DTC Index" 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 ICC sensor integrated unit. Refer to "Exploded View" Exploded View.
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
"DTC Index" Testing and Inspection.
NO- Replace the ICC sensor integrated unit. Refer to "Exploded View" Exploded View.

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
"DTC Index" Testing and Inspection.
NO- Replace the ICC sensor integrated unit. Refer to "Exploded View" Exploded View.


Special Repair Requirement


DESCRIPTION

Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following operation is performed.
- Removal and installation of ICC sensor integrated unit
- Replacement of ICC sensor integrated unit

SPECIAL REPAIR REQUIREMENT


1. LASER BEAM AIMING ADJUSTMENT OF ICC SENSOR INTEGRATED UNIT

Adjust the laser beam aiming of the ICC sensor integrated unit. Refer to "LASER BEAM AIMING ADJUSTMENT : Description" Description.
- GO TO 2.

2. CHECK ICC SYSTEM

1.Erase the "Self Diagnostic Result", and then perform "All DTC Reading" again after performing the action test. (Refer to "ACTION TEST : Description" Description for action test.)
2.Check that the ICC system is normal.
- WORK END