Infiniti I35 (A33). Manual — part 51
![](/vehicles/zatt/ltherawowha/yose/son.png)
Wiring Diagram — AT — BA/FTS
NHAT0080
MAT487B
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
Wiring Diagram — AT — BA/FTS
AT-201
![](/vehicles/zatt/ltherawowha/yose/roughayod.png)
Diagnostic Procedure
=NHAT0081
1
INSPECTION START
Do you have CONSULT-II?
Yes or No
Yes
©
GO TO 2.
No
©
GO TO 9.
2
CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (With CONSULT-II)
With CONSULT-II
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out the value of “FLUID TEMP SE”.
SAT614J
Voltage:
Cold [20°C (68°F)]
→
Hot [80°C (176°F)]:
Approximately 1.5V
→
0.5V
OK or NG
OK
©
GO TO 10.
NG
©
GO TO 3.
3
DETECT MALFUNCTIONING ITEM
Check the following items:
I
Harness for short or open between TCM, ECM and terminal cord assembly
I
Ground circuit for ECM
Refer to EC-153, “TROUBLE DIAGNOSIS FOR POWER SUPPLY”.
OK or NG
OK
©
GO TO 4.
NG
©
Repair or replace damaged parts.
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
Diagnostic Procedure
AT-202
![](/vehicles/zatt/ltherawowha/yose/juroubindith.png)
4
CHECK TCM POWER SOURCE STEP 1
1. Turn ignition switch to ON position.
(Do not start engine.)
2. Check voltage between TCM harness connectors F50, F51 terminals 10 (R/Y), 19 (R/Y), 28 (Y/R) and ground.
SAT611J
OK or NG
OK
©
GO TO 5.
NG
©
GO TO 6.
5
CHECK TCM POWER SOURCE STEP 2
1. Turn ignition switch to OFF position.
2. Check voltage between TCM harness connector F50 terminal 28 (Y/R) and ground.
SAT612JG
OK or NG
OK
©
GO TO 7.
NG
©
GO TO 6.
6
DETECT MALFUNCTIONING ITEM
Check the following items:
I
Harness for short or open between battery, ignition switch and TCM
I
Ignition switch and fuse
Refer to EL-11, “POWER SUPPLY ROUTING”.
OK or NG
OK
©
GO TO 7.
NG
©
Repair or replace damaged parts.
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
Diagnostic Procedure (Cont’d)
AT-203
![](/vehicles/zatt/ltherawowha/yose/haifeyphrhui.png)
7
CHECK A/T FLUID TEMPERATURE SENSOR WITH TERMINAL CORD ASSEMBLY
1. Turn ignition switch to OFF position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminals 6 (G) and 7 (B) when A/T is cold.
SAT616JA
4. Reinstall any part removed.
OK or NG
OK
©
GO TO 10.
NG
©
GO TO 8.
8
DETECT MALFUNCTIONING ITEM
1. Remove oil pan. Refer to AT-282.
2. Check the following items:
I
A/T fluid temperature sensor
i. Check resistance between two terminals while changing temperature as shown below.
SAT821K
MTBL0210
I
Harness of terminal harness assembly for short or open
OK or NG
OK
©
GO TO 10.
NG
©
Repair or replace damaged parts.
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
Diagnostic Procedure (Cont’d)
AT-204
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