2001 INFINITI QX4 Factory Service Manual

Page 193 of 2395

INFINITI QX4 2001  Factory Service Manual Diagnostic ProcedureNBAT0069
1 CHECK VALVE RESISTANCE
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly connector on the right side of transfer assembly.
3. Check resis

Page 194 of 2395

INFINITI QX4 2001  Factory Service Manual 5 CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK©INSPECTION END
NG©Repair

Page 195 of 2395

INFINITI QX4 2001  Factory Service Manual SAT342HA
DescriptionNBAT0172The A/T fluid temperature sensor detects the A/T fluid temperature
and sends a signal to the TCM.
SAT021J
CONSULT-II REFERENCE VALUE IN DATA MONITOR
MODE
NBAT0172S02Remarks

Page 196 of 2395

INFINITI QX4 2001  Factory Service Manual ON BOARD DIAGNOSIS LOGICNBAT0172S04
Diagnostic trouble code Malfunction is detected when ... Check item (Possible cause)
: BATT/FLUID TEMP SEN
TCM receives an excessively low or high
voltage from the

Page 197 of 2395

INFINITI QX4 2001  Factory Service Manual Wiring Diagram Ð AT Ð BA/FTSNBAT0201
MAT916A
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
Wiring Diagram Ð AT Ð BA/FTS
AT-192

Page 198 of 2395

INFINITI QX4 2001  Factory Service Manual Diagnostic ProcedureNBAT0173
1 INSPECTION START
Do you have CONSULT-II?
YesorNo
Ye s©GO TO 2.
No©GO TO 6.
2 CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITH CONSULT-II)
With CONSULT-II
1. St

Page 199 of 2395

INFINITI QX4 2001  Factory Service Manual 4 CHECK A/T FLUID TEMPERATURE SENSOR WITH TERMINAL CORD ASSEMBLY
1. Turn ignition switch to ªOFFº position.
2. Disconnect terminal cord assembly connector on the right side of transfer assmebly.
3.

Page 200 of 2395

INFINITI QX4 2001  Factory Service Manual 7 CHECK TCM POWER SOURCE STEP 1
1. Turn ignition switch to ON position.
(Do not start engine.)
2. Check voltage between TCM terminals 10, 19, 28 and ground.
SAT611J
OK or NG
OK©GO TO 8.
NG©GO TO 9.