LAN SYSTEM (DIAGNOSTICS) > List of Diagnostic Trouble Code (DTC)
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DTC |
Item |
Content of diagnosis |
Note |
|
B1100 |
Integ. Unit System Error |
Memory read out error in body integrated unit |
|
|
B1101 |
BATT p/supply malfunction cont. |
• Open or short in battery power supply control circuit • Voltage malfunction caused by poor contact |
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|
B1102 |
BATT p/supply malfunction backup |
Voltage malfunction caused by poor contact of battery power supply backup circuits |
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B1103 |
Ignition power failure |
Voltage malfunction caused by poor contact of IGN power supply circuits |
|
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B1104 |
ACC power failure |
Voltage malfunction caused by poor contact of ACC power supply circuits |
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B1105 |
Key interlock circuit abnormal |
Open or short in key interlock circuit |
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B1106 |
shift lock circuit Failure |
Open or short in shift lock circuit |
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|
U1201 |
CAN-HS counter abnormal |
Communication is unstable because of high speed CAN communication error. |
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U1202 |
CAN-HS bus off |
Communication error occurs because of high speed CAN error. |
|
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U1211 |
CAN-HS ECM data abnormal |
Received error data from ECM. |
|
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U1212 |
CAN-HS TCM data abnormal |
Received error data from TCM. |
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U1213 |
CAN-HS VDC/ABS data abnormal |
Received error data from VDC/ABS module. |
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U1217 |
CAN-HS EPS data abnormal |
Received error data from EPS module. |
|
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U1221 |
CAN-HS ECM no-receive data |
Not received data from ECM. |
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U1222 |
CAN-HS TCM no-receive data |
Not received data from TCM. |
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U1223 |
CAN-HS VDC/ABS no-receive data |
Not received data from VDC/ABS CM. |
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U1227 |
CAN-HS EPS no-receive data |
Not received data from EPS CM. |
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U1300 |
CAN-LS malfunction |
Open or short in CAN-LS circuit, on ether side |
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U1301 |
CAN-LS counter abnormal |
Communication is unstable because of low speed CAN communication error. |
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U1302 |
CAN-LS bus off |
Integrated unit communication is shut down because of low speed CAN communication error. |
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U1303 |
Wake-up line abnormal |
Open or ground short circuit of wake-up line. |
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U1311 |
CAN-LS meter unit data abnormal |
Received error data from meter. |
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U1321 |
CAN-LS meter no-receive data |
Not received data from meter. |
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U1327 |
CAN-LS G/W no-receive data |
Not received data from gateway CM. |
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B1401 |
M Collation NG |
Malfunction related immobilizer |
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B1402 |
Immobilizer Key Collation NG |
Malfunction related immobilizer |
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B1403 |
E/G request NG |
Malfunction related immobilizer |
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B1404 |
Smart registration NG failure |
Ends with error during keyless access registration. |
|
|
B1500 |
Keyless UART com. Malfunction |
Open or short circuit in keyless UART circuit |
NOTE:
When more than two DTC codes are recorded, referring to their combination will make it easy to identify the possible cause. Refer to the list for typical examples.
|
DTC to Check |
Diagnostic Code that was displayed. |
Probable cause | |||
|
Body integrated unit |
ECM |
TCM |
VDC/ABS CM | ||
|
B1100 |
— |
— |
— |
There could be a problem in the body integrated unit. | |
|
U1221 |
— |
P1718 |
C0057 |
It is possible that the ECM is faulty. | |
|
U1222 |
P0600 |
— |
C0057 |
It is possible that the TCM is faulty. | |
|
U1223 |
P0600 |
P1718 |
— |
It is possible that the VDC/ABS CM is faulty. | |
|
U1321 |
— |
— |
— |
It is possible that the combination meter is faulty. | |
|
B1500 |
— |
— |
— |
It's possible that there is an internal problem in the keyless entry control module, or a open circuit in the communication line. | |
NOTE:
• Data stored at the time of trouble occurrence is shown on the display.
• Freeze frame data will be memorized maximum to 20.
• If freeze frame data is not stored in memory correctly (caused by low power supply of body integrated unit), DTC will be displayed with “?” on the head of it in the Subaru Select Monitor display. This shows it may be an unreliable reading.