Nissan Frontier. Manual — part 1250
P1762 DIRECT CLUTCH SOLENOID
TM-211
< DTC/CIRCUIT DIAGNOSIS >
[5AT: RE5R05A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
NG
>> GO TO 2.
2.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
DETECT MALFUNCTIONING ITEM
Check the following.
• The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK
>> Replace the control valve with TCM. Refer to
TM-288, "Removal and Installation"
NG
>> Repair or replace damaged parts.
4.
CHECK DTC
Perform “DTC Confirmation Procedure”.
• Refer to
TM-210, "DTC Confirmation Procedure"
.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
TM-212
< DTC/CIRCUIT DIAGNOSIS >
[5AT: RE5R05A]
P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID
P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID
Description
INFOID:0000000009480622
High and low reverse clutch solenoid valve is controlled by the TCM in response to signals sent from the trans-
mission range switch, output speed sensor and accelerator pedal position sensor (throttle position sensor).
Gears will then be shifted to the optimum position.
CONSULT Reference Value in Data Monitor Mode
INFOID:0000000009480623
On Board Diagnosis Logic
INFOID:0000000009480624
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P1767” with CONSULT or 8th judgment flicker without CONSULT is detected under
the following conditions.
- When TCM detects an improper voltage drop when it tries to operate the solenoid valve.
- When TCM detects as irregular by comparing target value with monitor value.
Possible Cause
INFOID:0000000009480625
• Harness or connectors
(The solenoid circuit is open or shorted.)
• High and low reverse clutch solenoid valve
DTC Confirmation Procedure
INFOID:0000000009480626
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT.
3. Start engine.
4. Drive vehicle and maintain the following conditions for at least 5 consecutive seconds.
ACCELE POSI: 1.5/8 - 2.0/8
SLCT LVR POSI: “D” position
GEAR: 2nd
⇒ 3rd (HLR/C ON/OFF)
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
5. If DTC is detected, go to
.
WITH GST
Follow the procedure “WITH CONSULT”.
Diagnosis Procedure
INFOID:0000000009480627
1.
CHECK INPUT SIGNAL
With CONSULT
1. Turn ignition switch ON.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT.
3. Start the engine.
4. Read out the value of “HLR/C SOLENOID” while driving.
Item name
Condition
Display value (Approx.)
HLR/C SOL
High and low reverse clutch disengaged. Refer to
0.6 - 0.8 A
High and low reverse clutch engaged. Refer to
0 - 0.05 A
P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID
TM-213
< DTC/CIRCUIT DIAGNOSIS >
[5AT: RE5R05A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 2.
2.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
DETECT MALFUNCTIONING ITEM
Check the following.
• The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK
>> Replace the control valve with TCM. Refer to
TM-288, "Removal and Installation"
NG
>> Repair or replace damaged parts.
4.
CHECK DTC
Perform “DTC Confirmation Procedure”.
• Refer to
TM-212, "DTC Confirmation Procedure"
.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
TM-214
< DTC/CIRCUIT DIAGNOSIS >
[5AT: RE5R05A]
P1772 LOW COAST BRAKE SOLENOID
P1772 LOW COAST BRAKE SOLENOID
Description
INFOID:0000000009480628
Low coast brake solenoid valve is turned “ON” or “OFF” by the TCM in response to signals sent from the trans-
mission range switch, output speed sensor and accelerator pedal position sensor (throttle position sensor).
Gears will then be shifted to the optimum position.
CONSULT Reference Value in Data Monitor Mode
INFOID:0000000009480629
On Board Diagnosis Logic
INFOID:0000000009480630
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P1772” with CONSULT or 7th judgment flicker without CONSULT is detected when
TCM detects an improper voltage drop when it tries to operate the solenoid valve.
Possible Cause
INFOID:0000000009480631
• Harness or connectors
(The solenoid circuit is open or shorted.)
• Low coast brake solenoid valve
DTC Confirmation Procedure
INFOID:0000000009480632
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “DATA MONITOR” mode for “ENGINE” with CONSULT.
3. Start engine.
4. Drive vehicle and maintain the following conditions for at least 5 consecutive seconds.
SLCT LVR POSI: “1” or “2”
GEAR: “1st” or “2nd” (LC/B ON/OFF)
5. If DTC is detected, go to
.
WITH GST
Follow the procedure “WITH CONSULT”.
Diagnosis Procedure
INFOID:0000000009480633
1.
CHECK INPUT SIGNAL
With CONSULT
1. Turn ignition switch ON.
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT.
3. Start the engine.
4. Read out the value of “ON OFF SOL” while driving.
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 2.
2.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to
Item name
Condition
Display value
ON OFF SOL
Low coast brake engaged. Refer to
ON
Low coast brake disengaged. Refer to
.
OFF
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