Infiniti G35 (V35). Manual — part 45
DTC P1846 ATF PRESSURE SWITCH 6
AT-171
D
E
F
G
H
I
J
K
L
M
A
B
AT
Diagnostic Procedure
NCS000HN
1.
CHECK INPUT SIGNAL
With CONSULT-II
1.
Start the engine.
2.
Select “ECU INPUT SIGNALS” or “MAIN SIGNALS” in “DATA
MONITOR” mode for “A/T” with CONSULT-II.
3.
Drive vehicle in the “D” position (2nd
Þ
3rd gear), and confirm
the ON/OFF actuation of the “ATF PRES SW 6”.
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
AT-172, "MAIN POWER SUPPLY AND GROUND CIR-
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
DETECT MALFUNCTIONING ITEM
Check A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK
>> Replace control valve with TCM. Refer to
AT-225, "Control Valve with TCM and A/T Fluid Temper-
.
NG
>> Repair or replace damaged parts.
4.
CHECK DTC
Perform
AT-170, "DTC Confirmation Procedure"
.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
Item name
Condition
Display value
ATF PRES SW 6
High and low reverse clutch engaged.
Refer to
.
ON
High and low reverse clutch disengaged.
Refer to
.
OFF
PCIA0067E
AT-172
MAIN POWER SUPPLY AND GROUND CIRCUIT
MAIN POWER SUPPLY AND GROUND CIRCUIT
PFP:00100
Wiring Diagram — AT — MAIN
NCS000HO
TCWM0410E
MAIN POWER SUPPLY AND GROUND CIRCUIT
AT-173
D
E
F
G
H
I
J
K
L
M
A
B
AT
TCM terminals and data are reference value. Measured between each terminal and ground.
Diagnostic Procedure
NCS000HP
1.
CHECK TCM POWER SOURCE STEP 1
1.
Turn ignition switch OFF.
2.
Disconnect A/T assembly harness connector.
3.
Check voltage between A/T assembly harness connector and
ground.
OK or NG
OK
>> GO TO 2.
NG
>> GO TO 3.
2.
CHECK TCM POWER SOURCE STEP 2
1.
Disconnect A/T assembly harness connector.
2.
Turn ignition switch ON.
3.
Check voltage between A/T assembly harness connector and
ground.
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 3.
Terminal
Wire
color
Item
Condition
Data (Approx.)
1
R/W
Power supply
(Memory back-up)
Always
Battery voltage
2
R/W
Power supply
(Memory back-up)
Always
Battery voltage
5
B
Ground
Always
0 V
6
Y/R
Power supply
–
Battery voltage
–
0 V
10
B
Ground
Always
0 V
Item
Connector
Terminal
Voltage
TCM
F40
1 - Ground
Battery voltage
2 - Ground
6 - Ground
0V
SCIA2104E
Item
Connector
Terminal
Voltage
TCM
F40
1- Ground
Battery voltage
2 - Ground
6 - Ground
SCIA2105E
AT-174
MAIN POWER SUPPLY AND GROUND CIRCUIT
3.
DETECT MALFUNCTIONING ITEM
Check the following.
●
Harness for short or open between battery and A/T assembly harness connector terminals 1, 2
●
Harness for short or open between ignition switch and A/T assembly harness connector terminal 6
●
10 A fuse (No.32, located in the fuse and fusible link block) and 10 A fuse (No.83, located in the IPDM E/
R)
●
Ignition switch, Refer to
PG-3, "POWER SUPPLY ROUTING CIRCUIT"
.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace damaged parts.
4.
CHECK TCM GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect A/T assembly harness connector.
3.
Check continuity between A/T assembly harness connector ter-
minals and ground.
If OK, check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 5.
NG
>> Repair open circuit or short to ground or short to power
in harness or connectors.
5.
DETECT MALFUNCTIONING ITEM
Check A/T assembly harness connector terminals for damage or loose connection with harness connector.
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace damaged parts.
6.
PERFORM SELF-DIAGNOSIS
Perform self-diagnosis. Refer to
AT-86, "SELF-DIAGNOSTIC RESULT MODE"
OK or NG
OK
>> INSPECTION END
NG - 1 >> Self-diagnosis does not activate: GO TO 7.
NG - 2 >> DTC is displayed: Check the malfunctioning system. Refer to
Continuity should exist.
SCIA2106E
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