Infiniti G20 (P11). Manual — part 52
Diagnostic Procedure
NCAT0074
1
CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 3 and ground.
Resistance:
20 - 40
Ω
SAT908J
OK or NG
OK
©
GO TO 2.
NG
©
1. Remove control valve assembly. Refer to AT-280.
2. Check the following items:
I
Overrun clutch solenoid valve
Refer to “Component Inspection”, AT-207.
I
Harness of terminal cord assembly for short or open
GI
MA
EM
LC
EC
FE
CL
MT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P1760 OVERRUN CLUTCH SOLENOID VALVE
Diagnostic Procedure
AT-205
2
CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal 3 and TCM harness connector terminal 20.
Continuity should exist.
SAT909J
If OK, check harness for short to ground and short to power.
4. Reinstall any part removed.
OK or NG
OK
©
GO TO 3.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
3
CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-202.
OK or NG
OK
©
INSPECTION END
NG
©
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness con-
nector.
DTC P1760 OVERRUN CLUTCH SOLENOID VALVE
Diagnostic Procedure (Cont’d)
AT-206
SAT910J
Component Inspection
NCAT0075
OVERRUN CLUTCH SOLENOID VALVE
NCAT0075S01
I
For removal, refer to AT-280.
Resistance Check
NCAT0075S0101
I
Check resistance between two terminals.
Solenoid valve
Terminal No.
Resistance
(Approx.)
Overrun clutch
solenoid valve
3
Ground
20 - 30
Ω
SAT911J
Operation Check
NCAT0075S0102
I
Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
GI
MA
EM
LC
EC
FE
CL
MT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P1760 OVERRUN CLUTCH SOLENOID VALVE
Component Inspection
AT-207
SAT283HB
SAT021J
Description
NCAT0076
The A/T fluid temperature sensor detects the A/T fluid temperature
and sends a signal to the TCM.
CONSULT-II REFERENCE VALUE IN DATA MONITOR
MODE
NCAT0076S01
Remarks: Specification data are reference values.
Monitor item
Condition
Specification (Approximately)
A/T fluid temperature sensor
Cold [20°C (68°F)]
"
Hot [80°C (176°F)]
1.5V
"
0.5V
2.5 k
Ω
"
0.3 k
Ω
TCM TERMINALS AND REFERENCE VALUE
NCAT0076S02
Remarks: Specification data are reference values.
Terminal
No.
Wire color
Item
Condition
Judgement stan-
dard
(Approx.)
10
R
Power source
When turning ignition switch to
“ON”.
Battery voltage
When turning ignition switch to
“OFF”.
0V
19
R
Power source
Same as No. 10
28
P
Power source
(Memory back-up)
or
When turning ignition switch to
“OFF”.
Battery voltage
When turning ignition switch to
“ON”.
Battery voltage
42
B
Ground
(A/T fluid tem-
perature sensor)
—
—
47
BR
A/T fluid tempera-
ture sensor
When ATF temperature is 20°C
(68°F).
1.5V
When ATF temperature is 80°C
(176°F).
0.5V
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
Description
AT-208
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