2001 INFINITI QX4 Factory Service Manual

Page 225 of 2395

INFINITI QX4 2001  Factory Service Manual 8 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 226 of 2395

INFINITI QX4 2001  Factory Service Manual 2. Engine Cannot Be Started In ªPº and ªNº
Position
=NBAT0074SYMPTOM:
Engine cannot be started with selector lever in ªPº or ªNº
position.
Engine cannot be started with selector lever in ªPº

Page 227 of 2395

INFINITI QX4 2001  Factory Service Manual 3. In ªPº Position, Vehicle Moves Forward Or
Backward When Pushed
=NBAT0075SYMPTOM:
Vehicle moves when it is pushed forward or backward with
selector lever in ªPº position.
1 CHECK PARKING COMPONE

Page 228 of 2395

INFINITI QX4 2001  Factory Service Manual 4. In ªNº Position, Vehicle Moves=NBAT0076SYMPTOM:
Vehicle moves forward or backward when selecting ªNº posi-
tion.
1 CHECK PNP SWITCH CIRCUIT
With CONSULT-II
Does ªTCM INPUT SIGNALSº in Data Mo

Page 229 of 2395

INFINITI QX4 2001  Factory Service Manual 3 CHECK A/T FLUID LEVEL
Check A/T fluid level again.
SAT638A
OK or NG
OK©GO TO 4.
NG©Refill ATF.
4 CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
SAT171B
OK or NG
OK©GO

Page 230 of 2395

INFINITI QX4 2001  Factory Service Manual 5. Large Shock. ªNº®ªRº Position=NBAT0077SYMPTOM:
There is large shock when changing from ªNº to ªRº position.
1 CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to A/T fluid tem

Page 231 of 2395

INFINITI QX4 2001  Factory Service Manual 3 CHECK LINE PRESSURE
Check line pressure at idle with selector lever in ªDº position. Refer to ªLINE PRESSURE TESTº, AT-62.
SAT494G
OK or NG
OK©GO TO 4.
NG©1. Remove control valve assembly. Ref

Page 232 of 2395

INFINITI QX4 2001  Factory Service Manual 6. Vehicle Does Not Creep Backward In ªRº
Position
=NBAT0078SYMPTOM:
Vehicle does not creep backward when selecting ªRº position.
1 CHECK A/T FLUID LEVEL
Check A/T fluid level again.
SAT638A
OK or