DTC Description
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
P1568 | ICC COMMAND VALUE (Intelligent cruise control command value) | ECM detects that a throttle valve opening angle request signal sent from chassis control module is difference from the specified value calculated by ECM. |
POSSIBLE CAUSE
FAIL-SAFE
Active trace control does not function.
DTC CONFIRMATION PROCEDURE
1.CHECK DTC PRIORITY
If DTC P1568 is displayed with DTC UXXXX, first perform the confirmation procedure for DTC UXXXX.
Is applicable DTC detected? YES >> Perform diagnosis for detected DTC. Refer to EC-93, "DTC Index".
NO >> GO TO 2.
2.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
>> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE
Is DTC detected? YES >> Proceed to EC-406, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK DTC PRIORITY
If DTC P1568 is displayed with DTC UXXXX, first perform the confirmation procedure for DTC UXXXX.
Is applicable DTC detected? YES >> Perform diagnosis for detected DTC. Refer to EC-93, "DTC Index".
NO >> GO TO 2.
2.CHECK SELF-DIAGNOSTIC RESULT OF CHASSIS CONTROL MODULE
Check that the chassis control module does not detect any DTC.
Is any DTC detected? YES >> GO TO 2.
NO >> Replace chassis control module. Refer to DAS-277, "Removal and Installation".
3.REPLACE CHASSIS CONTROL MODULE
Is DTC P1568 detected again? YES >> Replace ECM. Refer to EC-499, "Removal and Installation".
NO >> INSPECTION END
Symptom diagnosis
HEATER AND AIR CONDITIONING SYSTEM CONTROL SYMPTOMS
Symptom Table
SYMPTOM TABLE
Symptom
Reference Page
A/C system does not come on.
Go to Trouble Diagnosis Procedure for A/C System.
HAC-166, "FRONT
A/C CONTROL : Diagnosis
Procedure"
Air ou ...
Power supply and ground circuit
BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM)
BCM (BODY CONTROL SYSTEM) (WITH INTELLIGENT KEY SYSTEM) : Diagnosis
Procedure
Regarding Wiring Diagram information, refer to BCS-50, "Wiring Diagram".
1. CHECK FUSE
Check that the following fuse is not blown.
Is the fuse blo ...
Precaution
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT
PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
...