Nissan Quest E52. Instruction — part 300
DAS-42
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
C1A00 CONTROL UNIT
DTC/CIRCUIT DIAGNOSIS
C1A00 CONTROL UNIT
DTC Logic
INFOID:0000000009940693
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Perform “All DTC Reading” with CONSULT.
3.
Check if the “C1A00” is detected as the current malfunction in “Self Diagnostic Result” of “BSW”.
Is “C1A00” detected as the current malfunction?
YES
>> Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009940694
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if any DTC other than “C1A00” is detected in “Self Diagnostic Result” of “BSW”.
Is any DTC detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
.
NO
>> Replace the BSW control module. Refer to
DAS-84, "Removal and Installation"
.
DTC
Trouble diagnosis name
DTC detecting condition
Possible causes
C1A00
CONTROL UNIT
BSW control module internal malfunction
BSW control module
DAS
C1A01 POWER SUPPLY CIRCUIT 1, C1A02 POWER SUPPLY CIRCUIT 2
DAS-43
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
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C1A01 POWER SUPPLY CIRCUIT 1, C1A02 POWER SUPPLY CIRCUIT 2
DTC Logic
INFOID:0000000009940695
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Turn the BSW system ON.
3.
Perform “All DTC Reading” with CONSULT.
4.
Check if the “C1A01” or “C1A02” is detected as the current malfunction in “Self Diagnostic Result” of
“BSW”.
Is “C1A01” or “C1A02” detected as the current malfunction?
YES
>> Refer to
NO
>> Refer to
GI-42, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000009940696
1.
CHECK BSW CONTROL MODULE POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit of BSW control module. Refer to
.
Is the inspection result normal?
YES
>> Replace the BSW control module. Refer to
DAS-84, "Removal and Installation"
NO
>> Repair or replace the malfunctioning parts.
DTC
Trouble diagnosis
name
DTC detecting condition
Possible causes
C1A01
POWER SUPPLY
CIR
The battery voltage sent to BSW control module
remains less than 7.9 V for 5 seconds
• Connector, harness, fuse
• BSW control module
C1A02
POWER SUPPLY
CIR 2
The battery voltage sent to BSW control module
remains more than 19.3 V for 5 seconds
DAS-44
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
C1A03 VEHICLE SPEED SENSOR
C1A03 VEHICLE SPEED SENSOR
DTC Logic
INFOID:0000000009940697
DTC DETECTION LOGIC
NOTE:
If DTC “C1A03” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Turn the BSW system ON.
3.
Drive the vehicle at 30 km/h (19 MPH) or more.
CAUTION:
Always drive safely.
4.
Stop the vehicle.
5.
Perform “All DTC Reading” with CONSULT.
6.
Check if the “C1A03” is detected as the current malfunction in “Self Diagnostic Result” of “BSW”.
Is “C1A03” detected as the current malfunction?
YES
>> Refer to
.
NO
>> Refer to
GI-42, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000009940698
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A03” in “Self Diagnostic Result” of “BSW”.
Is “U1000” detected?
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
DAS-53, "BSW CONTROL MODULE : DTC Logic"
.
NO
>> GO TO 2.
2.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ABS”.
Is any DTC detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
.
NO
>> Replace the BSW control module. Refer to
DAS-84, "Removal and Installation"
.
DTC
Trouble diagnosis
name
DTC detecting condition
Possible causes
C1A03
VHCL SPEED SE
CIRC
If the vehicle speed signal (wheel speed) from
ABS actuator and electric unit (control unit) re-
ceived by the BSW control module via CAN
communication, are inconsistent
• Wheel speed sensor
• ABS actuator and electric unit (control
unit)
• BSW control module
DAS
C1B50 SIDE RADAR MALFUNCTION
DAS-45
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
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C1B50 SIDE RADAR MALFUNCTION
DTC LOGIC
INFOID:0000000009940699
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Perform “All DTC Reading” with CONSULT.
3.
Check if the “C1B50” is detected as the current malfunction in “Self Diagnostic Result” of “SIDE RADAR
RIGHT/LEFT”.
Is the “C1B50” detected as the current malfunction?
YES
>> Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009940700
1.
CHECK SELF-DIAGNOSIS RESULT
Check if any DTC other than “C1B50” is detected in “Self Diagnostic Result” of “SIDE RADAR LEFT/RIGHT”
Is any DTC detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunction part. Refer to
(SIDE RADAR RIGHT) or
(SIDE RADAR LEFT).
NO
>> Replace the side radar. Refer to
DAS-85, "Removal and Installation"
DTC
Trouble diagnosis name
DTC detecting condition
Possible causes
C1B50
SIDE RDR MALFUNC-
TION
Side radar malfunction
Side radar
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