2007 INFINITI QX56 sensor

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-195
< SERVICE INFORMATION >
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Check the A/T fluid level. Refer to AT-13, "Checking Automatic
Transmission Fluid (ATF)".
OK or NG
OK >> GO TO 3.
NG >> Refill ATF.
3.CHECK CONTROL CABLE
Check the control cable.
• Refer to AT-208, "
Checking of A/T Position".
OK or NG
OK >> GO TO 4.
NG >> Adjust control cable. Refer to AT-208, "
Adjustment of A/
T Position".
4.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-210, "
Control Valve with TCM and A/T Fluid Temperature Sensor 2".
2. Check A/T fluid condition. Refer to AT-51, "
Inspections Before
Trouble Diagnosis".
OK or NG
OK >> GO TO 5.
NG >> GO TO 8.
5.DETECT MALFUNCTIONING ITEM
• Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT-60,
"Symptom Chart" (Symptom No.15).
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6.CHECK SYMPTOM
Check again. Refer to AT-59, "
Cruise Test - Part 3".
OK or NG
OK >>INSPECTION END
NG >> GO TO 7.
7.PERFORM TCM INSPECTION
1. Perform TCM input/output signals inspection. Refer to AT-82, "
TCM Input/Output Signal Reference
Va l u e".
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.
OK or NG
SAT638A
LCIA0345E
SCIA5199E

AT-196
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
8.DETECT MALFUNCTIONING ITEM
• Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT-60,
"Symptom Chart" (Symptom No.15).
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
A/T Does Not Shift: 3rd gear → 2nd gearINFOID:0000000003532466
SYMPTOM:
When shifted from 33 to 22 position, does not downshift from 3rd to 2nd gears.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
Perform self-diagnosis. Refer to AT-83, "
CONSULT-II Function (A/T)".
Do the self-diagnosis results indicate PNP switch, ATF pressure switch 6?
YES >> Check the malfunctioning system. Refer to AT- 9 9' AT-156.
NO >> GO TO 2.
2.CHECK A/T FLUID LEVEL
Check the A/T fluid level. Refer to AT-13, "
Checking Automatic
Transmission Fluid (ATF)".
OK or NG
OK >> GO TO 3.
NG >> Refill ATF.
3.CHECK CONTROL CABLE
Check the control cable.
• Refer to AT-208, "
Checking of A/T Position".
OK or NG
OK >> GO TO 4.
NG >> Adjust control cable. Refer to AT-208, "
Adjustment of A/
T Position".
4.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-210, "
Control Valve with TCM and A/T Fluid Temperature Sensor 2".
SAT638A
LCIA0345E

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-199
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1. Remove oil pan. Refer to AT-210, "Control Valve with TCM and A/T Fluid Temperature Sensor 2".
2. Check A/T fluid condition. Refer to AT-51, "
Inspections Before
Trouble Diagnosis".
OK or NG
OK >> GO TO 6.
NG >> GO TO 9.
6.DETECT MALFUNCTIONING ITEM
• Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT-60,
"Symptom Chart" (Symptom No.17).
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7.CHECK SYMPTOM
Check again. Refer to AT-58, "
Cruise Test - Part 2".
OK or NG
OK >>INSPECTION END
NG >> GO TO 8.
8.PERFORM TCM INSPECTION
1. Perform TCM input/output signals inspection. Refer to AT-82, "
TCM Input/Output Signal Reference
Va l u e".
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
9.DETECT MALFUNCTIONING ITEM
• Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT-60,
"Symptom Chart" (Symptom No.17).
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
Vehicle Does Not Decelerate By Engine BrakeINFOID:0000000003532468
SYMPTOM:
No engine brake is applied when the gear is shifted from the 22 to 11.
DIAGNOSTIC PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
Perform self-diagnosis.
Do the self-diagnosis results indicate PNP switch, ATF pressure switch 5?
YES >> Check the malfunctioning system. Refer to AT- 9 9' AT-154.
NO >> GO TO 2.
2.CHECK 1ST POSITION SWITCH CIRCUIT
With CONSULT-II
SCIA5199E

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-201
< SERVICE INFORMATION >
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1. Remove oil pan. Refer to AT-210, "Control Valve with TCM and A/T Fluid Temperature Sensor 2".
2. Check A/T fluid condition. Refer to AT-51, "
Inspections Before
Trouble Diagnosis".
OK or NG
OK >> GO TO 6.
NG >> GO TO 9.
6.DETECT MALFUNCTIONING ITEM
• Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT-60,
"Symptom Chart" (Symptom No.53).
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7.CHECK SYMPTOM
Check again. Refer to AT-59, "
Cruise Test - Part 3".
OK or NG
OK >>INSPECTION END
NG >> GO TO 8.
8.PERFORM TCM INSPECTION
1. Perform TCM input/output signals inspection. Refer to AT-82, "
TCM Input/Output Signal Reference
Va l u e".
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
9.DETECT MALFUNCTIONING ITEM
• Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT-60,
"Symptom Chart" (Symptom No.53).
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
SCIA5199E

AT-210
< SERVICE INFORMATION >
ON-VEHICLE SERVICE
2. Install the oil pan (2) and new oil pan gasket.
• Oil pan clips (1)
• Drain plug (3)
• : Front
• : Oil pan bolts
CAUTION:
• Do not reuse the oil pan gasket.
• Completely remove all moisture, oil and old gasket from
the oil pan gasket mating surfaces and holes.
• Always replace the oil pan bolts as they are self-sealing.
• Be sure the oil pan drain plug hole is located to the rear of
the transmission assembly.
• Partially install the oil pan bolts in a criss-cross pattern to prevent dislocation of the gasket.
• Be careful not to pinch harnesses.
3. Tighten new oil pan bolts in numerical order as shown.
4. Install drain plug in oil pan with new gasket.
CAUTION:
Do not reuse the drain plug gasket.
5. Refill the transmission assembly with fluid. Refer to AT-13, "
Changing Automatic Transmission Fluid
(ATF)".
Control Valve with TCM and A/T Fluid Temperature Sensor 2INFOID:0000000003532478
COMPONENTS
AWDIA0023ZZ
Oil pan bolts : 7.9 N·m (0.81 kg-m, 70 in-lb)
SCIA4113E
Drain plug : 34 N·m (3.5 kg-m, 25 ft-lb)

ON-VEHICLE SERVICE
AT-211
< SERVICE INFORMATION >
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CONTROL VALVE WITH TCM REMOVAL AND INSTALLATION
Removal
1. Disconnect negative battery terminal
2. Drain ATF through drain plug.
3. Disconnect A/T assembly harness connector.
1. Transmission 2. Snap ring 3. Sub-harness
4. Control valve with TCM 5. Bracket 6. A/T fluid temperature sensor 2
7. Oil pan gasket 8. Brackets 9. Oil pan bolt
10. Oil pan 11. Magnet 12. Drain plug
13. Drain plug gasket 14. Terminal cord assembly 15. O-ring
AWDIA0024ZZ

AT-212
< SERVICE INFORMATION >
ON-VEHICLE SERVICE
4. Remove snap ring from A/T assembly harness connector.
5. Push A/T assembly harness connector.
CAUTION:
Be careful not to damage connector.
6. Remove oil pan and oil pan gasket. Refer to AT-209, "
Oil Pan".
7. Disconnect A/T fluid temperature sensor 2 connector (A).
CAUTION:
Be careful not to damage connector.
8. Straighten the four terminal clips to free the terminal cord
assembly for A/T fluid temperature sensor 2 harness.
• : Terminal clip
9. Straighten terminal clip to free the revolution sensor harness.
10. Disconnect revolution sensor connector.
CAUTION:
Be careful not to damage connector.
SCIA5021E
SCIA5022E
SCIA8124E
SCIA7525E

ON-VEHICLE SERVICE
AT-213
< SERVICE INFORMATION >
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11. Remove bolts (A), (B) and (C) from control valve with TCM.
• : Front
12. Remove control valve with TCM from transmission case.
CAUTION:
Be careful with the manual valve notch and manual plate
height. Remove it vertically.
13. Remove A/T fluid temperature sensor 2 with bracket from con-
trol valve with TCM.
14. Remove bracket from A/T fluid temperature sensor 2.
15. Remove O-ring from A/T assembly harness connector.
Bolt symbol Length mm (in) Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
SCIA8074E
SCIA5142E
SCIA5253E
SCIA5264E
SCIA5155E