Description
The ECM receives two vehicle speed signals via the CAN communication line. One is sent from combination meter, and the other is from TCM (Transmission control module). The ECM uses these signals for ASCD control.
Refer to EC-68, "System Diagram" for ASCD functions.
DTC Logic
DTC DETECTION LOGIC
NOTE:
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
2.PERFORM DTC CONFIRMATION PROCEDURE
NOTE: This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle.
If a road test is expected to be easier, it is unnecessary to lift the vehicle.
Diagnosis Procedure
1.CHECK DTC WITH TCM
Check DTC with TCM.
2.CHECK DTC WITH "ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)"
3.CHECK COMBINATION METER FUNCTION
P1700 CVT CONTROL SYSTEM
Description
This DTC is displayed with other DTC regarding TCM. Perform the trouble diagnosis for corresponding DTC.
Refer to EC-542, "DTC Index". When this DTC is detected, the ASCD control is canceled.
AV control unit
Reference Value
VALUES ON THE DIAGNOSIS TOOL
CONSULT data monitor item
TERMINAL LAYOUT
PHYSICAL VALUES
*1 With satellite radio
DTC Index
Self-diagnosis results display item
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U122A AV control unit
DTC Logic
Diagnosis Procedure
1.PERFORM THE SELF-DIAGNOSIS
When U122A is detected, write configuration data with "MULTI AV" of CONSULT.
U122E AV CONTROL UNIT
DTC Logic
DTC DETECTION LOGIC
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DTC/circuit diagnosis
CHARGING SYSTEM PRELIMINARY INSPECTION
Diagnosis Procedure
1.CHECK BATTERY TERMINALS CONNECTION
Check if battery terminals are clean and tight
2.CHECK FUSE
Check for blown fuse and fusible link.
3.CHECK GENERATOR GROUND TERMINAL CONNECTION
Check if connector E230 terminal 5 (generator groun ...