Nissan Frontier D40. Manual — part 255
P1817 ACTUATOR MOTOR
DLN-41
< COMPONENT DIAGNOSIS >
[TRANSFER: TX15B]
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P1817 ACTUATOR MOTOR
Description
INFOID:0000000005275445
The actuator motor receives signals from the transfer control unit and controls shift rods which shift the trans-
fer case. DTC P1817 will set when any of the following occur:
• Motor does not operate properly due to open or short circuit in actuator motor.
• Malfunction is detected in the actuator motor. (When 4WD shift switch is operated and actuator motor does
not operate)
• Malfunction is detected in transfer shift high relay or transfer shift low relay.
DTC Logic
INFOID:0000000005275446
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Perform self-diagnosis.
Is DTC P1817 detected?
YES
>> Perform diagnosis procedure. Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000005275447
Regarding Wiring Diagram information, refer to
.
1.
CHECK ACTUATOR MOTOR SIGNAL
With CONSULT-III
1.
Start engine.
2.
Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-III.
3.
Read out the value of “SHIFT ACT1”, “SHIFT AC MON1”, “SHIFT ACT2”, “SHIFT AC MON2”.
DTC
CONSULT-III
Diagnostic item is detected when...
Reference
[P1817]
SHIFT ACTUATOR
• Motor does not operate properly due
to open or short circuit in actuator mo-
tor.
• Malfunction is detected in the actuator
motor. (When 4WD shift switch is op-
erated and actuator motor is not oper-
ated)
• Malfunction is detected in transfer shift
high relay or transfer shift low relay.
DLN-42
< COMPONENT DIAGNOSIS >
[TRANSFER: TX15B]
P1817 ACTUATOR MOTOR
Without CONSULT-III
1.
Start engine.
2.
Depress brake pedal and stop vehicle.
3.
Set A/T selector lever to "N" position.
4.
Check voltage between transfer control unit harness connector
terminal and ground.
Monitored item
Condition
Display value
SHIFT ACT1
• Vehicle
stopped
• Engine run-
ning
• A/T selector
lever “N” po-
sition
• Brake pedal
depressed
4WD shift switch: 2WD to
4H or 4H to 4LO or 2WD to
4LO
ON
Except the above
OFF
SHIFT AC MON1
4WD shift switch: 2WD to
4H or 4H to 4LO or 2WD to
4LO
ON
Except the above
OFF
SHIFT ACT2
4WD shift switch: 4LO to
4H or 4H to 2WD or 4LO to
2WD
ON
Except the above
OFF
SHIFT AC MON2
4WD shift switch: 4LO to
4H or 4H to 2WD or 4LO to
2WD
ON
Except the above
OFF
Connector
Terminal
Condition
Voltage
(Approx.)
M153
28 -
Ground
When 4WD shift switch is operated (While
actuator motor is operating.)
Battery
voltage
→
0V
When 4WD shift switch is not operated
0V
31 -
Ground
Always
0V
42 -
Ground
• Vehicle
stopped
• Engine run-
ning
• A/T selector
lever “N” po-
sition
• Brake pedal
depressed
4WD shift switch: 2WD to
4H or 4H to 4LO or 2WD to
4LO
0V
Except the above
Battery
voltage
M153
47 -
Ground
• Vehicle
stopped
• Engine run-
ning
• A/T selector
lever “N” po-
sition
• Brake pedal
depressed
4WD shift switch: 2WD to
4H or 4H to 4LO or 2WD to
4LO
Battery
voltage
→
0V
Except the above
0V
48 -
Ground
4WD shift switch: 4LO to
4H or 4H to 2WD or 4LO to
2WD
Battery
voltage
→
0V
Except the above
0V
50 -
Ground
4WD shift switch: 4LO to
4H or 4H to 2WD or 4LO to
2WD
0V
Except the above
Battery
voltage
WDIA0144E
P1817 ACTUATOR MOTOR
DLN-43
< COMPONENT DIAGNOSIS >
[TRANSFER: TX15B]
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Are the inspection results normal?
YES
>> GO TO 9.
NO
>> GO TO 2.
2.
CHECK ACTUATOR MOTOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer control unit harness connector.
3.
Check voltage between transfer control unit harness connector
terminal 27 and ground.
4.
Turn ignition switch “ON”.
5.
Check voltage between transfer control unit harness connector
terminal 27 and ground.
Are the inspection results normal?
YES
>> GO TO 3.
NO
>> 1.
Check harness for short or open between transfer
control unit harness connector M153 terminal 27
and transfer shut off relay 2 harness connector
E157 terminal 5 and 10A fuse (No. 57, located in the fuse and relay block). If any items are
damaged, repair or replace damaged parts.
2.
Perform trouble diagnosis for power supply circuit. Refer to
3.
CHECK TRANSFER RELAY POWER SUPPLY CIRCUIT
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Remove transfer shift high relay and transfer shift low relay. Refer to
DLN-13, "Component Parts Loca-
3.
Check voltage between transfer shift high and low relay connec-
tor terminals and ground.
Connector
Terminal
Voltage (Approx.)
M153
27 - Ground
0V
SDIA2808E
Connector
Terminal
Voltage (Approx.)
M153
27 - Ground
Battery voltage
SDIA2807E
Connector
Terminal
Voltage (Approx.)
E46
2 - Ground
0V
E47
2 - Ground
0V
SDIA3384E
DLN-44
< COMPONENT DIAGNOSIS >
[TRANSFER: TX15B]
P1817 ACTUATOR MOTOR
4.
Turn ignition switch “ON”. (Do not start engine.)
5.
Check voltage between transfer shift high and low relay connec-
tor terminals and ground.
Are the inspection results normal?
YES
>> GO TO 4.
NO
>>
Check the following. If any items are damaged, repair
or replace damaged parts.
• Harness for short or open between transfer control unit harness connector terminal 27 and
transfer shift high relay harness connector E46 terminal 2.
• Harness for short or open between transfer control unit harness connector terminal 27 and
transfer shift low relay harness connector terminal E47 terminal 2.
4.
CHECK TRANSFER RELAY
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Remove transfer shift high relay and transfer shift low relay.
3.
Apply 12V direct current between transfer shift high and low
relay terminals 1 and 2.
4.
Check continuity between relay terminals 3 and 4, 3 and 5.
Are the inspection results normal?
YES
>> GO TO 5.
NO
>> Replace the transfer shift high or low relay.
5.
CHECK (1): HARNESS BETWEEN TRANSFER CONTROL UNIT AND TRANSFER SHIFT RELAY
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer control unit harness connector.
3.
Remove transfer shift high relay and transfer shift low relay.
4.
Check continuity between the following terminals.
-
Transfer control unit harness connector M153 terminal 42 and
transfer shift high relay harness connector E46 terminal 1.
-
Transfer control unit harness connector M153 terminal 50 and
transfer shift low relay harness connector E47 terminal 1.
Also check harness for short to ground and short to power.
Is there continuity?
YES
>> GO TO 6.
NO
>> Repair or replace damaged parts.
6.
CHECK (2): HARNESS BETWEEN TRANSFER CONTROL UNIT AND TRANSFER SHIFT RELAY
1.
Turn ignition switch “OFF”. (Stay for at least 5 seconds.)
2.
Disconnect transfer control unit harness connector.
3.
Remove transfer shift high relay and transfer shift low relay.
Connector
Terminal
Voltage (Approx.)
E46
2 - Ground
Battery voltage
E47
2 - Ground
Battery voltage
SDIA3385E
Terminal
Condition
Continuity
3 - 4
12V direct current supply between terminals 1 and 2
No
OFF
Yes
3 - 5
12V direct current supply between terminals 1 and 2
Yes
OFF
No
LDIA0099E
Continuity should exist.
SDIA3386E
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