Nissan Titan. Manual — part 116
DLN-36
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
P1814 WAIT DETECTION SWITCH
P1814 WAIT DETECTION SWITCH
Description
INFOID:0000000009885980
The wait detection switch detects if the transfer case is in 4WD. DTC P1814 or flash code 10 will set if an
improper signal from the wait detection switch is input due to open or short circuit.
DTC Logic
INFOID:0000000009885981
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Perform self-diagnosis.
Is DTC P1814 or flash code 10 detected?
YES
>> Perform diagnosis procedure. Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009885982
Regarding Wiring Diagram information, refer to
.
1.
CHECK WAIT DETECTION 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 WAIT DETCT SW.
Without CONSULT
1. Start engine.
2. Check voltage between transfer control unit harness connector
terminal and ground.
OK or NG
DTC
CONSULT
Diagnostic item is detected when...
Reference
[P1814]
4WD DETECT SWITCH
Improper signal from wait detection
switch is input due to open or short cir-
cuit.
Condition
Display value
• Vehicle stopped
• Engine running
• A/T selector lever N position
• Brake pedal depressed
4WD shift switch: 4H and 4LO
ON
4WD shift switch: 2WD
OFF
Connector
Terminal
Condition
Voltage
(Approx.)
E142
17 -
Ground
• Vehicle stopped
• Engine running
• A/T selector lever
N position
• Brake pedal de-
pressed
4WD shift switch
: 4H and 4LO
0V
4WD shift switch: 2WD
Battery
voltage
SDIA3367E
P1814 WAIT DETECTION SWITCH
DLN-37
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
OK
>> GO TO 5.
NG
>> GO TO 2.
2.
CHECK HARNESS BETWEEN TRANSFER CONTROL UNIT AND WAIT DETECTION SWITCH
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Disconnect transfer control unit harness connector and the wait detection switch harness connector.
3. Check continuity between transfer control unit harness connec-
tor E142 terminal 17 and wait detection switch harness connec-
tor F59 terminal 10.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Disconnect wait detection switch harness connector.
3. Check continuity between wait detection switch harness con-
nector F59 terminal 11 and ground.
Also check harness for short to power.
OK or NG
OK
>> GO TO 4.
NG
>> Repair open circuit or short to power in harness or con-
nectors.
4.
CHECK WAIT DETECTION SWITCH
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Disconnect wait detection switch harness connector.
3. Remove wait detection switch. Refer to
DLN-12, "Component Parts Location"
.
4. Push and release wait detection switch and check continuity
between wait detection switch terminals 10 and 11.
OK or NG
OK
>> GO TO 5.
NG
>> Replace wait detection switch.
5.
CHECK TRANSFER CONTROL UNIT
Check transfer control unit input/output signal. Refer to
OK or NG
OK
>> GO TO 6.
NG
>> 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
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
Continuity should exist.
SDIA3368E
Continuity should exist.
PDIA0207E
Terminal
Condition
Continuity
10 - 11
Push wait detection switch
Yes
Release wait detection switch
No
PDIA0208E
DLN-38
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
P1814 WAIT DETECTION SWITCH
OK
>> Inspection End.
NG
>> Replace transfer control unit. Refer to
DLN-91, "Removal and Installation"
.
Component Inspection
INFOID:0000000009885983
1. Turn ignition switch OFF. (Stay for at least 5 seconds.)
2. Disconnect wait detection switch harness connector.
3. Remove wait detection switch. Refer to
DLN-12, "Component Parts Location"
4. Push and release wait detection switch and check continuity
between wait detection switch terminals 10 and 11.
5. If the inspection results are abnormal replace the wait detection
switch.
Terminal
Condition
Continuity
10 - 11
Push wait detection switch
Yes
Release wait detection switch
No
PDIA0208E
P1816 TRANSMISSION RANGE SWITCH
DLN-39
< DTC/CIRCUIT DIAGNOSIS >
[TRANSFER: TX15B]
C
E
F
G
H
I
J
K
L
M
A
B
DLN
N
O
P
P1816 TRANSMISSION RANGE SWITCH
Description
INFOID:0000000009885984
The transmission range switch transmits the A/T position indicator signal (transmission range switch signal)
via CAN communication to the transfer control unit. DTC P1816 will set when the transmission range switch
signal is malfunctioning or there is a communication error.
DTC Logic
INFOID:0000000009885985
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Perform self-diagnosis.
Is DTC P1816 displayed?
YES
>> Perform diagnosis procedure. Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009885986
1.
CHECK DTC WITH TCM
Perform self-diagnosis with TCM. Refer to
TM-38, "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
Is the inspection result 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 the vehicle and then perform self-diagnosis.
Is DTC P1816 displayed?
YES
>> Perform self-diagnosis with TCM again.
NO
>> Inspection End.
DTC
CONSULT
Diagnostic item is detected when...
Reference
[P1816]
PNP SW/CIRC
When transmission range switch signal
is malfunction or communication error
between the control units.
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