Nissan Frontier D22. Manual — part 18
DTC P1775 TORQUE CONVERTER CLUTCH SOLENOID
AT-41
[RL4R01A]
D
E
F
G
H
I
J
K
L
M
A
B
AT
DTC P1775 TORQUE CONVERTER CLUTCH SOLENOID
PFP:31940
Diagnostic Procedure
ECS007IW
When the malfunction indicator lamp indicates DTC P1775, refer to
EC-524, "DTC P1775 TCC SOLENOID VALVE"
.
1.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector and torque converter clutch solenoid valve harness connector.
3.
Check resistance between solenoid valve unit harness connector E36 terminal 3 and ECM harness con-
nector F29 terminal 115.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness between ECM and torque
converter clutch solenoid valve.
2.
CHECK POWER SOURCE CIRCUIT
1.
Turn ignition switch ON.
2.
Check voltage between solenoid valve unit harness connector E36 terminal 1 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 3.
AAT127A
Resistance
: Approximately 0
Ω
AAT128A
Voltage
: Battery voltage
AAT129A
AT-42
[RL4R01A]
DTC P1775 TORQUE CONVERTER CLUTCH SOLENOID
3.
DETECT MALFUNCTIONING ITEM
Check the following items:
●
Ignition switch and fuse
Refer to
.
●
Harness continuity between fuse and torque converter clutch solenoid valve.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace damaged parts.
4.
CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE (RESISTANCE)
Check resistance between solenoid valve unit connector E36 terminals 1 and 3.
OK or NG
OK
>> GO TO 5.
NG
>> Replace torque converter clutch solenoid valve.
5.
CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE (OPERATION)
1.
Remove torque converter clutch solenoid valve. Refer to
2.
Check torque converter clutch solenoid valve operation.
OK or NG
OK
>> GO TO 6.
NG
>> Replace torque converter clutch solenoid valve.
Resistance
: Approximately 25
Ω
AAT130A
AAT131A
DTC P1775 TORQUE CONVERTER CLUTCH SOLENOID
AT-43
[RL4R01A]
D
E
F
G
H
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J
K
L
M
A
B
AT
6.
CHECK CONTROL VALVE
1.
Disassemble control valve assembly. Refer to
AT-88, "CONTROL VALVE ASSEMBLY"
.
2.
Check torque converter clutch control valve.
–
Valve, and sleeve slide along valve bore under their own weight.
–
Valve, and sleeve are free from burrs, dents and scratches.
–
Control valve springs are free from damage, deformation and fatigue.
–
Hydraulic line is free from obstacles.
OK or NG
OK
>> GO TO 7.
NG
>> Repair control valve.
7.
CHECK MALFUNCTION
Is malfunction eliminated?
Yes or No
Yes
>> INSPECTION END.
No
>> Check control valve again. Repair or replace control valve assembly.
SAT740H
AT-44
[RL4R01A]
TROUBLE DIAGNOSES
TROUBLE DIAGNOSES
PFP:00004
Component Inspection
ECS007IX
OVERDRIVE CONTROL SWITCH AND OVERDRIVE CANCEL SOLENOID VALVE
1.
CHECK O/D OFF INDICATOR LAMP CIRCUIT
1.
Turn ignition switch ON.
(Do not start engine).
2.
Press and release overdrive control switch.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 2.
2.
CHECK OVERDRIVE CANCEL RELAY
AT-50, "OVERDRIVE CANCEL RELAY"
OK or NG
OK
>> GO TO 3.
NG
>> Replace overdrive cancel relay.
3.
DETECT MALFUNCTIONING ITEM
Check the following items:
●
O/D OFF indicator lamp
Refer to
●
Ignition switch and fuse for overdrive hold control module and overdrive cancel solenoid
Refer to
.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace damaged parts.
WCIA0158E
Resistance
: Approximately 25
Ω
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