Nissan Frontier D40. Instruction — part 1149
C1729 VEHICLE SPEED SIGNAL
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< COMPONENT DIAGNOSIS >
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C1729 VEHICLE SPEED SIGNAL
Description
INFOID:0000000005275735
The vehicle speed signal is not being detected by the BCM.
DTC Logic
INFOID:0000000005275736
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAGNOSTIC RESULTS
1.
On SELECT DIAG MODE, select the SELF-DIAG RESULT screen.
2.
Check display contents on SELF DIAG RESULT screen.
Is the CAN COMM CIRCUIT displayed in the self-diagnosis display?
YES
>> Refer to
.
NO
>> Inspection end.
Diagnosis Procedure
INFOID:0000000005275737
MALFUNCTION CODE NO. 52 (DTC C1729)
1.
CHECK SELF-DIAGNOSTIC RESULTS
1.
On SELECT DIAG MODE, select the SELF-DIAG RESULT screen.
2.
Check display contents on SELF DIAG RESULT screen.
Is the CAN COMM CIRCUIT displayed in the self-diagnosis display?
YES
>> Perform trouble diagnosis for CAN communication system. Refer to
NO
>> Check combination meter. Refer to
MWI-24, "CONSULT-III Function (METER/M&A)"
.
Special Repair Requirement
INFOID:0000000005548869
Perform preliminary check. Refer to
DTC
CONSULT - III
DTC detecting condition
C1729
VHCL SPEED SIG ERR
Vehicle speed signal is in error.
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< COMPONENT DIAGNOSIS >
C1735 IGNITION SIGNAL
C1735 IGNITION SIGNAL
Description
INFOID:0000000005275739
The BCM monitors the IGN ON signal on the CAN line and compares it to it’s direct IGN ON signal. When
these two signals do not match, the BCM sets C1735.
DTC Logic
INFOID:0000000005275740
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAGNOSTIC RESULTS
1.
On SELECT DIAG MODE, select the SELF-DIAG RESULT screen.
2.
Check display contents on SELF DIAG RESULT screen.
Is C1735 displayed in the self-diagnosis display?
YES
>> Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000005275741
MALFUNCTION CODE NO. 54 (DTC C1735)
1.
CAN IGNITION SIGNAL
Check BCM IGN RLY signal with CONSULT-III. Refer to
.
Are the inspection results normal with the ignition switch ON?
YES
>> GO TO 2.
NO
>> Check CAN system. Refer to
LAN-14, "Trouble Diagnosis Flow Chart"
2.
BCM POWER SUPPLY
Check BCM power supply (ignition ON). Refer to
Is the power supply with the ignition switch ON normal?
YES
>> GO TO 3.
NO
>> Repair power supply as necessary.
3.
DRIVE VEHICLE
Clear DTC and then test drive the vehicle and check the low tire pressure warning lamp.
Does the vehicle operate without any low tire pressure warning lamp?
YES
>> Inspection End.
NO
>> Replace BCM. Refer to
BCS-54, "Removal and Installation"
Special Repair Requirement
INFOID:0000000005548870
Perform preliminary check. Refer to
DTC
CONSULT - III
DTC detecting condition
C1735
IGNITION SIGNAL LINE - BCM/TPMS
BCM has detected a mismatch between IGN ON signals.
BCM (BODY CONTROL MODULE)
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< ECU DIAGNOSIS >
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ECU DIAGNOSIS
BCM (BODY CONTROL MODULE)
Reference Value
INFOID:0000000005548871
VALUES ON THE DIAGNOSIS TOOL
Monitor Item
Condition
Value/Status
IGN ON SW
Ignition switch OFF or ACC
OFF
Ignition switch ON
ON
KEY ON SW
Mechanical key is removed from key cylinder
OFF
Mechanical key is inserted to key cylinder
ON
CDL LOCK SW
Door lock/unlock switch does not operate
OFF
Press door lock/unlock switch to the lock side
ON
CDL UNLOCK SW
Door lock/unlock switch does not operate
OFF
Press door lock/unlock switch to the unlock side
ON
DOOR SW-DR
Driver's door closed
OFF
Driver's door opened
ON
DOOR SW-AS
Passenger door closed
OFF
Passenger door opened
ON
DOOR SW-RR
Rear RH door closed
OFF
Rear RH door opened
ON
DOOR SW-RL
Rear LH door closed
OFF
Rear LH door opened
ON
KEY CYL LK-SW
Other than driver door key cylinder LOCK position
OFF
Driver door key cylinder LOCK position
ON
KEY CYL UN-SW
Other than driver door key cylinder UNLOCK position
OFF
Driver door key cylinder UNLOCK position
ON
KEYLESS LOCK
“LOCK” button of key fob is not pressed
OFF
“LOCK” button of key fob is pressed
ON
KEYLESS UNLOCK
“UNLOCK” button of key fob is not pressed
OFF
“UNLOCK” button of key fob is pressed
ON
ACC ON SW
Ignition switch OFF
OFF
Ignition switch ACC or ON
ON
REAR DEF SW
Rear window defogger switch OFF
OFF
Rear window defogger switch ON
ON
LIGHT SW 1ST
Lighting switch OFF
OFF
Lighting switch 1ST
ON
BUCKLE SW
The seat belt (driver side) is unfastened. [Seat belt switch (driver
side) OFF]
OFF
The seat belt (driver side) is fastened. [Seat belt switch (driver side)
ON]
ON
KEYLESS PANIC
PANIC button of key fob is not pressed
OFF
PANIC button of key fob is pressed
ON
WT-22
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
RKE LCK-UNLCK
LOCK/UNLOCK button of key fob is not pressed and held simulta-
neously
OFF
LOCK/UNLOCK button of key fob is pressed and held simulta-
neously
ON
RKE KEEP UNLK
UNLOCK button of key fob is not pressed
OFF
UNLOCK button of key fob is pressed and held
ON
HI BEAM SW
Lighting switch OFF
OFF
Lighting switch HI
ON
HEAD LAMP SW 1
Lighting switch OFF
OFF
Lighting switch 2ND
ON
HEAD LAMP SW 2
Lighting switch OFF
OFF
Lighting switch 2ND
ON
AUTO LIGHT SW
Lighting switch OFF
OFF
Lighting switch AUTO
ON
PASSING SW
Other than lighting switch PASS
OFF
Lighting switch PASS
ON
FR FOG SW
Front fog lamp switch OFF
OFF
Front fog lamp switch ON
ON
TURN SIGNAL R
Turn signal switch OFF
OFF
Turn signal switch RH
ON
TURN SIGNAL L
Turn signal switch OFF
OFF
Turn signal switch LH
ON
CARGO LAMP SW
Cargo lamp switch OFF
OFF
Cargo lamp switch ON
ON
OPTICAL SENSOR
Bright outside vehicle
5V
Dark outside vehicle
0V
IGN SW CAN
Ignition switch OFF or ACC
OFF
Ignition switch ON
ON
FR WIPER HI
Front wiper switch OFF
OFF
Front wiper switch HI
ON
FR WIPER LOW
Front wiper switch OFF
OFF
Front wiper switch LO
ON
FR WIPER INT
Front wiper switch OFF
OFF
Front wiper switch INT
ON
FR WASHER SW
Front washer switch OFF
OFF
Front washer switch ON
ON
INT VOLUME
Wiper intermittent dial is in a dial position 1 - 7
1 - 7
FR WIPER STOP
Any position other than front wiper stop position
OFF
Front wiper stop position
ON
VEHICLE SPEED
While driving
Equivalent to speedometer reading
HAZARD SW
Hazard switch OFF
OFF
Hazard switch ON
ON
BRAKE SW
Brake pedal is not depressed
OFF
Brake pedal is depressed
ON
Monitor Item
Condition
Value/Status
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