DETERMINING OPEN CIRCUIT LOCATION (CAN-BUS No.6) [(US)]
DETERMINING OPEN CIRCUIT LOCATION (CAN-BUS No.6) [(US)]
SM2566463
id1002x1003700
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Caution
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• Perform the following malfunction diagnosis only when it is diagnosed with a open circuit by CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(US)].)• If the malfunctioning part is detected in the communication line, before disconnecting the related connector for inspection, press the connector in the connection direction to verify that there is no looseness or disconnection.• When disconnecting the connector, verify that there is no damage, deformation, or corrosion of the connector terminals.
1.Verify the CAN system-related module DTCs and the module displayed in red or blue on the M-MDS screen.
2.Apply the communication error DTC and the module displayed in red or blue to the DTC output pattern and malfunctioning location, and select the possible cause for the diagnostic result and the reference for the inspection item. (See DTC Output Pattern And Malfunctioning Location)
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Note
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• The open circuit location can be determined by the DTC indicated in the DTC output pattern and malfunctioning location chart. DTCs not listed in the chart are not used for the determination of the open circuit location. (See DTC Output Pattern And Malfunctioning Location.)• The module may be displayed in red or blue on the M-MDS screen even if there is no malfunction depending on the vehicle specification.
3.Inspect the possible cause and inspection item of the applicable malfunctioning part.
DTC Output Pattern And Malfunctioning Location
Cross (×): Communication error-related DTC
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M-MDS display |
DTC |
DTC output pattern and malfunctioning location |
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DTC output module |
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PCM
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U0101:00
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U0121:00
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U0131:00
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U0140:00
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×
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U0151:00
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U0155:00
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U0164:00
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U2121:00
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U212E:00
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U2131:00
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U2133:00
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Electric parking brake control module / DSC HU/CM
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U0100:00
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U0101:00
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U0131:00
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U0140:00
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×
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U0151:00
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U0155:00
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U0164:00
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U2121:00
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U212E:00
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U2131:00
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EPS control module
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U0100:00
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U0121:00
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U0140:00
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×
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U2121:00
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Vehicle control module (VCM)
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U0100:00
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U0101:00
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U0121:00
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U0126:00
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U0131:00
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U0140:00
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×
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U0151:00
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U0155:00
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U0156:00
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U0164:00
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U2120:00
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U2122:00
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×
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×
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U2123:00
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×
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×
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U2125:00
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U2126:00
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U212E:00
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U2131:00
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U2132:00
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U2133:00
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U2139:00
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U213A:00
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Body control module (BCM)
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U0100:00
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U0101:00
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U0115:00
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U0121:00
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U0121:87
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U0126:00
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U0131:00
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U0151:00
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U0155:00
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U0156:00
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U0158:00
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U0164:00
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U0182:00
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U2121:49
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×
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U212A:00
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U212C:00
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U212D:00
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U212E:00
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U2131:00
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U2133:00
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U213A:00
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U213B:00
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Connectivity master unit (CMU)
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U0140:00
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×
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Telematics communication unit
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U0140:00
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×
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U0151:00
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U0164:00
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U213C:00
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Adaptive front lighting system (AFS) control module
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U0122:87
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U0126:87
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U212A:87
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U212B:87
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×
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U212D:87
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Dash-electrical supply unit
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U0100:00
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U0101:00
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U0121:00
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U0151:00
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U212B:00
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×
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U212E:00
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U2131:00
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U2133:00
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U213A:00
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SAS control module
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U0140:00
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×
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U0155:00
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U0156:00
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TCM
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U0100:00
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U0121:00
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U0131:00
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U0140:00
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×
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U0155:00
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U212C:00
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M-MDS display module
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Module displayed in red or blue
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Vehicle control module (VCM)
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×
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Front radar sensor
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×
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×
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Front side radar sensor (LH)
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×
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×
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Diagnostic result
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Possible cause and inspection item
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A
Possible cause
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• Connector terminal disconnection, poor contact, damage, deformation, corrosion• Body control module (BCM) power supply voltage or body ground malfunction• Open circuit in wiring harness between body control module (BCM) and connector C-06• Open circuit in wiring harness between connector C-06 and connector C-10• Connector C-06 malfunction• Connector C-10 malfunction• Body control module (BCM) malfunction
System wiring diagram
am3zzw00027576
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Inspection item
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• Body control module (BCM) power supply voltage-related wiring harness and fuse• Body control module (BCM) body ground related wiring harness• Body control module (BCM) connector• Wiring harness between body control module (BCM) terminal 4N and connector C-06• Wiring harness between body control module (BCM) terminal 4M and connector C-06• Wiring harness between connector C-06 and connector C-10• Connector C-06• Connector C-10• Body control module (BCM)
B
Possible cause
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• Connector terminal disconnection, poor contact, damage, deformation, corrosion• Front radar sensor power supply voltage or body ground malfunction• Open circuit in wiring harness between front radar sensor and connector C-10• Connector C-10 malfunction• Front radar sensor malfunction
System wiring diagram
am3zzw00034238
|
Inspection item
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• Front radar sensor power supply voltage-related wiring harness and fuse• Front radar sensor body ground related wiring harness• Front radar sensor connector• Wiring harness between front radar sensor terminal E and connector C-10• Wiring harness between front radar sensor terminal C and connector C-10• Front radar sensor
C
Possible cause
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• Connector terminal disconnection, poor contact, damage, deformation, corrosion• Front side radar sensor (LH) power supply voltage or body ground malfunction• Open circuit in wiring harness between front side radar sensor (LH) and connector C-10• Connector C-10 malfunction• Front side radar sensor (LH) malfunction
System wiring diagram
am3zzw00034239
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Inspection item
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• Front side radar sensor (LH) power supply voltage-related wiring harness and fuse• Front side radar sensor (LH) body ground related wiring harness• Front side radar sensor (LH) connector• Connector C-10• Wiring harness between front side radar sensor (LH) terminal C and connector C-10• Wiring harness between front side radar sensor (LH) terminal D and connector C-10• Front side radar sensor (LH)
D
Possible cause
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• Connector terminal disconnection, poor contact, damage, deformation, corrosion• Body control module (BCM) power supply voltage or body ground malfunction• Open circuit in wiring harness between body control module (BCM) and connector C-10• Connector C-10 malfunction• Body control module (BCM) malfunction
System wiring diagram
am3zzw00034240
|
Inspection item
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• Body control module (BCM) power supply voltage-related wiring harness and fuse• Body control module (BCM) body ground related wiring harness• Body control module (BCM) connector• Wiring harness between body control module (BCM) terminal 2A and connector C-10• Wiring harness between body control module (BCM) terminal 2C and connector C-10• Connector C-10• Body control module (BCM)