Table of Contents
Advertisement
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
AQ:DTC C0057 ECM COMMUNICATION
DTC DETECTING CONDITION:
No CAN signal from ECM.
TROUBLE SYMPTOM:
• ABS does not operate.
• VDC does not operate.
Step
1
CHECK LAN SYSTEM.
Perform the diagnosis for LAN system. <Ref. to
LAN(diag)-24, OPERATION, Read Diagnostic
Trouble Code (DTC).>
2
CHECK POOR CONTACT IN CONNECTORS. Is there poor contact in ECM
3
CHECK ECM.
4
CHECK VDCCM&H/U.
1) Connect all the connectors.
2) Perform the clear memory mode.
3) Perform the inspection mode.
4) Read the DTC.
5
CHECK OTHER DTC DETECTION.
AR:DTC C0057 ECM CONTROL
DTC DETECTING CONDITION:
Cooperation control prohibition of ECM
TROUBLE SYMPTOM:
• ABS does not operate.
• VDC does not operate.
NOTE:
Warning light goes off if the cooperation control of ECM returns.
Step
1
CHECK WARNING LIGHT.
Drive the vehicle at speed of 10 km/h or more
for one minute or more, check the VDC warn-
ing light illuminates.
2
CHECK POOR CONTACT IN CONNECTORS. Is there poor contact in ECM
3
CHECK ECM.
4
CHECK VDCCM&H/U.
1) Connect all the connectors.
2) Perform the clear memory mode.
3) Perform the inspection mode.
4) Read the DTC.
5
CHECK OTHER DTC DETECTION.
Check
Is there any fault in LAN sys-
tem?
connector?
Is ECM normal?
Is the same DTC displayed?
Is any other DTC displayed?
Check
Does the VDC warning light
illuminate?
connector?
Is ECM normal?
Is the same DTC displayed?
Is any other DTC displayed?
VDC(diag)-90
Yes
Perform the diag-
Go to step 2.
nosis according to
DTC for LAN sys-
tem.
Repair the con-
Go to step 3.
nector.
Go to step 4.
Replace the ECM.
Replace the
Go to step 5.
VDCCM&H/U.
<Ref. to VDC-7,
VDC Control Mod-
ule and Hydraulic
Control Unit
(VDCCM&H/U).>
Perform the diag-
It results from a
nosis according to
temporary noise
DTC.
interference.
Yes
Go to step 2.
VDC is normal.
Perform the clear
memory mode.
NOTE:
DTC may be re-
corded
cranking
driving.
Repair the con-
Go to step 3.
nector.
Go to step 4.
Replace the ECM.
Replace the
Go to step 5.
VDCCM&H/U.
<Ref. to VDC-7,
VDC Control Mod-
ule and Hydraulic
Control Unit
(VDCCM&H/U).>
Perform the diag-
It results from a
nosis according to
temporary noise
DTC.
interference.
No
No
when
during
Advertisement
Chapters
Table of Contents
