Nissan Quest E52. Instruction — part 302
DAS-50
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
C1B54 SIDE RADAR LEFT MALFUNCTION
C1B54 SIDE RADAR LEFT MALFUNCTION
DTC Logic
INFOID:0000000009940707
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 “C1B54” is detected as the current malfunction in “Self Diagnostic Result” of “BSW”.
Is “C1B54” detected as the current malfunction?
YES
>> Refer to
.
NO
>> Refer to
GI-42, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000009940708
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1B54” 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 SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “SIDE RADAR LEFT”.
Is any DTC detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
(SIDE RADAR LEFT).
NO
>> Replace the BSW control module. Refer to
DAS-84, "Removal and Installation"
.
DTC
Trouble diagnosis name
DTC detecting condition
Possible cause
C1B54
SIDE RDR L MALF
BSW control module detects that side radar LH
has a malfunction.
Side radar LH
DAS
C1B55 RADAR BLOCKAGE
DAS-51
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
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C1B55 RADAR BLOCKAGE
DTC Logic
INFOID:0000000009940709
DTC DETECTION LOGIC
NOTE:
DTC “C1B55” may be detected under the following conditions except for possible cause. (Explain to the cus-
tomer about the difference between the contamination detection function and the indication when the malfunc-
tion is detected and tell them “This is not malfunction”.)
• The side radar may be blocked by temporary ambient conditions such as splashing water, mist or fog.
• The blocked condition may also be caused by objects such as ice, frost or dirt obstructing the side radar.
• Due to the nature of radar technology it is possible to get a blockage warning and not actually be blocked.
This is rare and is known as a false blockage warning. A false blocked condition either self-clears or clears
after an ignition cycle.
Diagnosis Procedure
INFOID:0000000009940710
1.
CHECK THE REAR BUMPER
Check rear bumper near the side radar contaminated with foreign materials.
>> GO TO 2.
2.
CHECK THE SIDE RADAR
Check side radar and the side radar outskirts contaminated with foreign materials.
>> GO TO 3.
3.
CHECK THE SIDE RADAR INSTALL CONDITION
Check side radar installation condition (installation position, properly tightened, a bent bracket).
>> GO TO 4.
4.
INTERVIEW
1.
Ask if there is stain or foreign materials.
2.
Ask if there is any temporary ambient condition such as splashing water, mist or fog.
3.
Ask if there is any object such as ice, frost or dirt obstructing the side radar.
Is any of above conditions seen?
YES
>> Explain to the customer about the difference between the blockage detection function and the
indication when the malfunction is detected and tell them “This is not malfunction”.
NO
>> INSPECTION END
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
C1B55
RADAR BLOCKAGE
Side radar is blocked.
Stain or foreign materials is deposit-
ed.
DAS-52
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
U1000 CAN COMM CIRCUIT
U1000 CAN COMM CIRCUIT
SIDE RADAR LH
SIDE RADAR LH : Description
INFOID:0000000009940711
CAN COMMUNICATION
CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control units, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads the required data only.
CAN communication signal chart. Refer to
LAN-32, "CAN COMMUNICATION SYSTEM : CAN Communica-
BSW COMMUNICATION
• BSW communication is a multiplex communication system. This enables the system to transmit and receive
large quantities of data at high speed by connecting control units with 2 communication lines.
• BSW communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.
SIDE RADAR LH : DTC Logic
INFOID:0000000009940712
DTC DETECTION LOGIC
SIDE RADAR LH : Diagnosis Procedure
INFOID:0000000009940713
1.
PERFORM THE SELF-DIAGNOSIS
1.
Start the engine.
2.
Turn the BSW system ON, and then wait for 2 seconds or more.
3.
Perform “All DTC Reading” with CONSULT.
4.
Check if the “U1000” is detected as the current malfunction in “Self Diagnostic Result” of “SIDE RADAR
LEFT”.
Is “U1000” detected as the current malfunction?
YES
>> Refer to
LAN-17, "Trouble Diagnosis Flow Chart"
NO
>> Refer to
GI-42, "Intermittent Incident"
.
SIDE RADAR RH
SIDE RADAR RH : Description
INFOID:0000000009940714
CAN COMMUNICATION
CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control units, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads the required data only.
CAN communication signal chart. Refer to
LAN-32, "CAN COMMUNICATION SYSTEM : CAN Communica-
BSW COMMUNICATION
• BSW communication is a multiplex communication system. This enables the system to transmit and receive
large quantities of data at high speed by connecting control units with 2 communication lines.
• BSW communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.
DTC
Trouble diagnosis name
DTC detecting condition
Possible causes
U1000
CAN COMM CIRCUIT
If side radar LH is not transmitting or receiving
BSW communication signal for 2 seconds or more
BSW communication system
DAS
U1000 CAN COMM CIRCUIT
DAS-53
< DTC/CIRCUIT DIAGNOSIS >
[BSW]
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SIDE RADAR RH : DTC Logic
INFOID:0000000009940715
DTC DETECTION LOGIC
SIDE RADAR RH : Diagnosis Procedure
INFOID:0000000009940716
1.
PERFORM THE SELF-DIAGNOSIS
1.
Start the engine.
2.
Turn the BSW system ON, and then wait for 2 seconds or more.
3.
Perform “All DTC Reading” with CONSULT.
4.
Check if the “U1000” is detected as the current malfunction in “Self Diagnostic Result” of “SIDE RADAR
RIGHT”.
Is “U1000” detected as the current malfunction?
YES
>> Refer to
LAN-17, "Trouble Diagnosis Flow Chart"
NO
>> Refer to
GI-42, "Intermittent Incident"
.
BSW CONTROL MODULE
BSW CONTROL MODULE : Description
INFOID:0000000009940717
CAN COMMUNICATION
CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control units, and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads the required data only.
CAN communication signal chart. Refer to
LAN-32, "CAN COMMUNICATION SYSTEM : CAN Communica-
BSW COMMUNICATION
• BSW communication is a multiplex communication system. This enables the system to transmit and receive
large quantities of data at high speed by connecting control units with 2 communication lines.
• BSW communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.
BSW CONTROL MODULE : DTC Logic
INFOID:0000000009940718
DTC DETECTION LOGIC
NOTE:
If “U1000” is detected, first diagnose the CAN communication system.
BSW CONTROL MODULE : Diagnosis Procedure
INFOID:0000000009940719
1.
PERFORM THE SELF-DIAGNOSIS
1.
Turn the ignition switch ON.
2.
Turn the BSW system ON, and then wait for 2 seconds or more.
3.
Perform “All DTC Reading” with CONSULT.
4.
Check if the “U1000” is detected as the current malfunction in “Self Diagnostic Result” of “BSW”.
Is “U1000” detected as the current malfunction?
DTC
Trouble diagnosis name
DTC detecting condition
Possible causes
U1000
CAN COMM CIRCUIT
If Side radar RH is not transmitting or receiving
BSW communication signal for 2 seconds or more
BSW communication system
DTC
Trouble diagnosis name
DTC detecting condition
Possible causes
U1000
CAN COMM CIRCUIT
If BSW control module is not transmitting or re-
ceiving CAN communication signal or BSW com-
munication signal for 2 seconds or more
• CAN communication system
• BSW communication system
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