Nissan Frontier. Manual — part 281
DLN-26
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
P1807 VEHICLE SPEED SENSOR (A/T)
P1807 VEHICLE SPEED SENSOR (A/T)
Description
INFOID:0000000009479641
The transmission control module (TCM) transmits the output shaft revolution signal via CAN communication to
Transfer control unit. DTC P1807 will set when a malfunction is detected in the output shaft revolution signal or
an improper signal is input while driving.
DTC Logic
INFOID:0000000009479642
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Perform self-diagnosis.
Is DTC P1807 detected?
YES
>> Perform diagnosis procedure. Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009479643
1.
CHECK DTC WITH TCM
Perform self-diagnosis with TCM. Refer to
TM-157, "CONSULT Function (TRANSMISSION)"
Is any malfunction detected by self-diagnosis?
YES
>> Check the malfunctioning system.
NO
>> GO TO 2.
2.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
Are the inspection results normal?
YES
>> GO TO 3.
NO
>> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
3.
CHECK DTC
Drive vehicle and then perform Self-diagnosis.
Is DTC P1807 displayed?
YES
>> Perform self-diagnosis with TCM again.
NO
>> Inspection End.
DTC
CONSULT
Diagnostic item is detected when...
Reference
[P1807]
VHCL SPEED SEN·AT
• Malfunction is detected in output shaft
revolution signalthat is output from
TCM through CAN communication.
• Improper signal is input while driving.
P1808 VEHICLE SPEED SENSOR (ABS)
DLN-27
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
P1808 VEHICLE SPEED SENSOR (ABS)
Description
INFOID:0000000009479644
The ABS actuator and electric unit (control unit) transmits a vehicle speed signal via CAN communication to
the transfer control unit. DTC P1808 sets when a malfunction is detected in the vehicle speed signal that is
output from the ABS actuator and electric unit (control unit) or an improper signal is input while driving.
DTC Logic
INFOID:0000000009479645
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Perform self-diagnosis.
Is DTC “P1808 displayed?
YES
>> Perform diagnosis procedure. Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009479646
1.
CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Perform self-diagnosis with ABS actuator and electric unit (control unit). Refer to
BRC-147, "CONSULT Function (ABS)"
(TYPE2).
Is any malfunction detected by self-diagnosis?
YES
>> Check the malfunctioning system.
NO
>> GO TO 2.
2.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
Are the inspection results normal?
YES
>> GO TO 3.
NO
>> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
3.
CHECK DTC
Drive vehicle and then perform Self-diagnosis.
Is DTC P1808 displayed?
YES
>> Perform self-diagnosis with ABS actuator and electric unit (control unit). Refer to
BRC-147, "CONSULT Function (ABS)"
(TYPE2).
NO
>> Inspection End.
DTC
CONSULT
Diagnostic item is detected when...
Reference
[P1808]
VHCL SPEED SEN·ABS
• Malfunction is detected in vehicle
speed signal that is output from ABS
actuator and electric unit (control unit)
through CAN communication.
• Improper signal is input while driving.
DLN-28
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
P1810 4 LO SWITCH
P1810 4 LO SWITCH
Description
INFOID:0000000009479647
The 4LO switch detects that the transfer case is in 4LO range. DTC P1810 will set when an improper signal
from the 4LO switch is input due to an open or short circuit.
DTC Logic
INFOID:0000000009479648
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Perform self-diagnosis.
Is DTC P1810 displayed?
YES
>> Perform diagnosis procedure. Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009479649
Regarding Wiring Diagram information, refer to
.
1.
CHECK 4LO POSITION SWITCH SIGNAL
With CONSULT
1. Start engine.
2. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT.
3. Read out the value of “4L POSI SW”.
Without CONSULT
1. Start engine.
2. Check voltage between transfer control unit harness connector
terminal and ground.
Are the inspection results normal?
DTC
CONSULT
Diagnostic item is detected when...
Reference
[P1810]
4L POSI SW TF
Improper signal from 4LO switch is input
due to open or short circuit.
Condition
Display value
• Vehicle stopped
• Engine running
• A/T selector lever “N” position
• Brake pedal depressed
4WD shift switch: 4LO
ON
Except the above
OFF
Connector
Terminal
Condition
Voltage
(Approx.)
M152
24 -
Ground
• Vehicle stopped
• Engine running
• A/T selector lever
“N” position
• Brake pedal de-
pressed
4WD shift switch: 4LO
0V
Except the above
Battery
voltage
SDIA3363E
P1810 4 LO SWITCH
DLN-29
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
YES
>> GO TO 5.
NO
>> GO TO 2.
2.
CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND 4LO SWITCH
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector and the 4LO switch harness connector.
3. Check continuity between transfer control unit harness connec-
tor M152 terminal 24 and 4LO switch harness connector F60
terminal 13.
Also check harness for short to ground and short to power.
Is there continuity?
YES
>> GO TO 3.
NO
>> Repair or replace damaged parts.
3.
CHECK GROUND CIRCUIT
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect 4LO switch harness connector.
3. Check continuity between 4LO switch harness connector F60
terminal 12 and ground.
Also check harness for short to power.
Is there continuity?
YES >> GO TO 4.
NO
>> Repair open circuit or short to power in harness or con-
nectors.
4.
CHECK 4LO SWITCH
1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2. Disconnect 4LO switch harness connector.
3. Remove 4LO switch. Refer to
DLN-13, "Component Parts Location"
4. Push and release 4LO switch and check continuity between 4LO switch terminals 12 and 13.
Are the inspection results normal?
YES
>> GO TO 5.
NO
>> Replace 4LO switch.
5.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
Are the inspection results normal?
YES
>> GO TO 6.
NO
>> Check transfer control unit pin terminals for damage or loose connection with harness connector.
If any items are damaged, repair or replace damaged parts.
6.
CHECK DTC
Drive the vehicle and then perform self-diagnosis.
Is DTC P1810 displayed?
YES
>> Replace transfer control unit. Refer to
DLN-92, "Removal and Installation"
.
NO
>> Inspection End.
Continuity should exist.
SDIA3364E
Continuity should exist.
PDIA0203E
Terminal
Condition
Continuity
12 - 13
Push 4LO switch
Yes
Release 4LO switch
No
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст