DCA

C1A14 ECM





Description
ECM transmits the accelerator pedal position signal, ICC brake switch signal, stop lamp switch signal, etc. to
ICC sensor integrated unit via CAN communication.




DTC Logic

DTC DETECTION LOGIC

DTC Detection Logic:

NOTE:
If DTC "C1A14" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to DCA DCA DCA DCA
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Operate the ICC system and drive.

CAUTION:
Always drive safely.
3. Stop the vehicle.
4. Perform "All DTC Reading" with CONSULT-III.
5. Check if the "C1A14" is detected as the current malfunction in self-diagnosis results of "ICC".
Is "C1A14" detected as the current malfunction?
YES - Refer to DCA.
NO - Refer to Intermittent Incident.




Diagnosis Procedure
1.CHECK SELF-DIAGNOSIS RESULTS
Check if "U1000" is detected other than "C1A14" in "Self Diagnostic Result" of "ICC".
Is "U1000" detected?
YES - Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to DCA.
NO - GO TO 2.
2.PERFORM SELF-DIAGNOSIS OF ECM
Check if any DTC is detected in "Self Diagnostic Result" of "ENGINE".
Is any DTC detected?
YES - Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to Testing and Inspection (VQ35HR) or Testing and Inspection (VK50VE).
NO - Replace the ICC sensor integrated unit. Refer to 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 ICC (Full Speed Range) ICC (Full Speed Range) Description
- GO TO 2.
2.CHECK DCA SYSTEM
1. Erase the "self-diagnosis results", and then perform "All DTC Reading" again after performing the action test. (Refer to DCA for action test.)
2. Check that the DCA system is normal.
- WORK END