checking oil INFINITI QX56 2009 Factory Workshop Manual

SYSTEM SYMPTOMTM-123
< SYMPTOM DIAGNOSIS >
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Check line pressure at idle with selector lever in “D” position. Refer
to TM-188, "Inspection and Judgment"
.
OK or NG
OK >> GO TO 8.
NG - 1 >> Line pressure high: GO TO 6.
NG - 2 >> Line pressure low: GO TO 7.
6.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to TM-203, "Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer to TM-232, "Disassembly"
.
3. Check the following items:
- Oil pump assembly. Refer to TM-249, "Oil Pump"
.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
7.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to TM-203, "Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer to TM-232, "Disassembly"
.
3. Check the following items:
- Oil pump assembly. Refer to TM-249, "Oil Pump"
.
- Power train system. Refer to TM-232, "Disassembly"
.
- Transmission case. Refer to TM-232, "Disassembly"
.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to TM-201, "Oil Pan"
.
2. Check A/T fluid condition. Refer to TM-179, "Checking the A/T
Fluid (ATF)".
OK or NG
OK >> GO TO 10.
NG >> GO TO 9.
9.DETECT MALFUNCTIONING ITEM
 Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to TM-152,
"Symptom Table" (Symptom No.1).
OK or NG
OK >> GO TO 10.
NG >> Repair or replace damaged parts.
10.CHECK SYMPTOM
Check again. Refer to TM-5, "Work Flow"
.
OK or NG
SAT494G
SCIA5199E
Revision: December 20092009 QX56

SYSTEM SYMPTOMTM-127
< SYMPTOM DIAGNOSIS >
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Check the control cable.
 Refer to TM-195, "Checking of A/T Position"
.
OK or NG
OK >> GO TO 3.
NG >> Adjust control cable. Refer to TM-195, "Adjustment of A/
T Position".
3.CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to TM-179, "Checking the A/T Fluid
(ATF)".
OK or NG
OK >> GO TO 4.
NG >> Refill ATF.
4.CHECK STALL TEST
Check stall revolution with selector lever in “D” position. Refer to TM-
186, "Inspection and Judgment".
OK or NG
OK >> GO TO 5.
NG >> GO TO 7.
5.CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “D” position. Refer
to TM-188, "Inspection and Judgment"
.
OK or NG
OK >> GO TO 8.
NG - 1 >> Line pressure high. GO TO 6.
NG - 2 >> Line pressure low. GO TO 7.
6.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to TM-203, "Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer to TM-232, "Disassembly"
.
3. Check the following items:
- Oil pump assembly. Refer to TM-249, "Oil Pump"
.
OK or NG
OK >> GO TO 8.
LCIA0345E
SAT638A
SAT493G
SAT494G
Revision: December 20092009 QX56

TM-128
< SYMPTOM DIAGNOSIS >
SYSTEM SYMPTOM
NG >> Repair or replace damaged parts.
7.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to TM-203, "Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer to TM-232, "Disassembly"
.
3. Check the following items:
- Oil pump assembly. Refer to TM-249, "Oil Pump"
.
- Power train system. Refer to TM-232, "Disassembly"
.
- Transmission case. Refer to TM-232, "Disassembly"
.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to TM-201, "Oil Pan"
.
2. Check A/T fluid condition. Refer to TM-179, "Checking the A/T
Fluid (ATF)".
OK or NG
OK >> GO TO 9.
NG >> GO TO 12.
9.DETECT MALFUNCTIONING ITEM
 Check the malfunction items. If any items are dam aged, repair or replace damaged parts. Refer to TM-152,
"Symptom Table" (Symptom No.43).
OK or NG
OK >> GO TO 10.
NG >> Repair or replace damaged parts.
10.CHECK SYMPTOM
Check again. Refer to TM-5, "Work Flow"
.
OK or NG
OK >> INSPECTION END
NG >> GO TO 11.
11 .PERFORM TCM INSPECTION
1. Perform TCM input/output signals inspection. Refer to TM-104, "Reference Value"
.
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.
12.DETECT MALFUNCTIONING ITEM
 Check the malfunction items. If any items are dam aged, repair or replace damaged parts. Refer to TM-152,
"Symptom Table" (Symptom No.43).
OK or NG
OK >> GO TO 10.
NG >> Repair or replace damaged parts.
SCIA5199E
Revision: December 20092009 QX56

SYSTEM SYMPTOMTM-129
< SYMPTOM DIAGNOSIS >
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Vehicle Cannot Be Started from D1INFOID:0000000003771998
SYMPTOM:
Vehicle cannot be started from D1 on cruise test - Part 1.
DIAGNOSTIC PROCEDURE
1.CONFIRM THE SYMPTOM
Check if vehicle creeps in “R” position.
OK or NG
OK >> GO TO 2.
NG >> Refer to TM-124, "Vehicle Does Not Creep Backward in "R" Position"
.
2.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to TM-32, "CONSULT-III Function (TRANSMISSION)"
.
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system.
NO >> GO TO 3.
3.CHECK ACCELERATOR PEDA L POSITION(APP) SENSOR
Check accelerator pedal position (APP) sensor. Refer to TM-70, "Diagnosis Procedure"
.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace accelerator pedal position (APP) sensor.
4.CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to TM-179, "Checking the A/T Fluid
(ATF)".
OK or NG
OK >> GO TO 5.
NG >> Refill ATF.
5.CHECK LINE PRESSURE
Check line pressure at the engine stall point. Refer to TM-188,
"Inspection and Judgment".
OK or NG
OK >> GO TO 8.
NG - 1 >> Line pressure high. GO TO 6.
NG - 2 >> Line pressure low. GO TO 7.
6.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to TM-203, "Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer to TM-232, "Disassembly"
.
3. Check the following items:
- Oil pump assembly. Refer to TM-249, "Oil Pump"
.
OK or NG
SAT638A
SAT494G
Revision: December 20092009 QX56

TM-130
< SYMPTOM DIAGNOSIS >
SYSTEM SYMPTOM
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
7.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to TM-203, "Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer to TM-232, "Disassembly"
.
3. Check the following items:
- Oil pump assembly. Refer to TM-249, "Oil Pump"
.
- Power train system. Refer to TM-232, "Disassembly"
.
- Transmission case. Refer to TM-232, "Disassembly"
.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to TM-201, "Oil Pan"
.
2. Check A/T fluid condition. Refer to TM-179, "Checking the A/T
Fluid (ATF)".
OK or NG
OK >> GO TO 9.
NG >> GO TO 12.
9.DETECT MALFUNCTIONING ITEM
 Check the malfunction items. If any items are dam aged, repair or replace damaged parts. Refer to TM-152,
"Symptom Table" (Symptom No.23).
OK or NG
OK >> GO TO 10.
NG >> Repair or replace damaged parts.
10.CHECK SYMPTOM
Check again. Refer to TM-191, "Cruise Test - Part 1"
, TM-193, "Cruise Test - Part 2".
OK or NG
OK >> INSPECTION END
NG >> GO TO 11.
11 .PERFORM TCM INSPECTION
1. Perform TCM input/output signals inspection. Refer to TM-104, "Reference Value"
.
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.
12.DETECT MALFUNCTIONING ITEM
 Check the malfunction items. If any items are dam aged, repair or replace damaged parts. Refer to TM-152,
"Symptom Table" (Symptom No.23).
OK or NG
OK >> GO TO 10.
NG >> Repair or replace damaged parts.
SCIA5199E
Revision: December 20092009 QX56

SYSTEM SYMPTOMTM-131
< SYMPTOM DIAGNOSIS >
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A/T Does Not Shift: D1 →D2INFOID:0000000003771999
SYMPTOM:
The vehicle does not shift-up from the D1 to D2 gear at the specified speed.
DIAGNOSTIC PROCEDURE
1.CONFIRM THE SYMPTOM
Check if vehicle creeps forward in “D” position and vehicle can be started from D
1.
OK or NG
OK >> GO TO 2.
NG >> Refer to TM-126, "Vehicle Does Not Creep Forward in "D" Position"
, TM-129, "Vehicle Cannot Be
Started from D1".
2.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to TM-32, "CONSULT-III Function (TRANSMISSION)"
.
Do the self-diagnostic results indicate, direct clutch solenoid valve, accelerator pedal position sensor, output
speed sensor and vehicle speed signal?
YES >> Check the malfunctioning system. Refer to TM-84, "Diagnosis Procedure", EC-374, "Diagnosis
Procedure", TM-50, "Diagnosis Procedure", TM-74, "Diagnosis Procedure".
NO >> GO TO 3.
3.CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to TM-179, "Checking the A/T Fluid
(ATF)".
OK or NG
OK >> GO TO 4.
NG >> Refill ATF.
4.CHECK LINE PRESSURE
Check line pressure at the engine stall point. Refer to TM-188,
"Inspection and Judgment".
OK or NG
OK >> GO TO 7.
NG - 1 >> Line pressure high. GO TO 5.
NG - 2 >> Line pressure low. GO TO 6.
5.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to TM-203, "Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer to TM-232, "Disassembly"
.
3. Check the following items:
- Oil pump assembly. Refer to TM-249, "Oil Pump"
.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
6.DETECT MALFUNCTIONING ITEM
SAT638A
SAT494G
Revision: December 20092009 QX56

TM-132
< SYMPTOM DIAGNOSIS >
SYSTEM SYMPTOM
1. Check control valve with TCM. Refer to TM-203, "Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer to TM-232, "Disassembly"
.
3. Check the following items:
- Oil pump assembly. Refer to TM-249, "Oil Pump"
.
- Power train system. Refer to TM-232, "Disassembly"
.
- Transmission case. Refer to TM-232, "Disassembly"
.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to TM-201, "Oil Pan"
.
2. Check A/T fluid condition. Refer to TM-179, "Checking the A/T
Fluid (ATF)".
OK or NG
OK >> GO TO 8.
NG >> GO TO 11.
8.DETECT MALFUNCTIONING ITEM
 Check the malfunction items. If any items are dam aged, repair or replace damaged parts. Refer to TM-152,
"Symptom Table" (Symptom No.10).
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
9.CHECK SYMPTOM
Check again. Refer to TM-191, "Cruise Test - Part 1"
, TM-193, "Cruise Test - Part 2", TM-194, "Cruise Test -
Part 3"
OK or NG
OK >> INSPECTION END
NG >> GO TO 10.
10.PERFORM TCM INSPECTION
1. Perform TCM input/output signals inspection. Refer to TM-104, "Reference Value"
.
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.
11 .DETECT MALFUNCTIONING ITEM
 Check the malfunction items. If any items are dam aged, repair or replace damaged parts. Refer to TM-152,
"Symptom Table" (Symptom No.10).
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
A/T Does Not Shift: D2 →D3INFOID:0000000003772000
SYMPTOM:
The vehicle does not shift-up from D2 to D3 gear at the specified speed.
SCIA5199E
Revision: December 20092009 QX56

SYSTEM SYMPTOMTM-133
< SYMPTOM DIAGNOSIS >
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DIAGNOSTIC PROCEDURE
1.CONFIRM THE SYMPTOM
Check if vehicle creeps forward in “D” position and vehicle can be started from D
1.
OK or NG
OK >> GO TO 2.
NG >> Refer to TM-126, "Vehicle Does Not Creep Forward in "D" Position"
, TM-129, "Vehicle Cannot Be
Started from D1".
2.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to TM-32, "CONSULT-III Function (TRANSMISSION)"
.
Do the self-diagnostic results indicate high and low reverse clutch solenoid valve, accelerator pedal position
sensor, output speed sensor and vehicle speed signal?
YES >> Check the malfuncti oning system. Refer to TM-86, "Diagnosis Procedure", EC-374, "Diagnosis
Procedure", TM-50, "Diagnosis Procedure", TM-74, "Diagnosis Procedure".
NO >> GO TO 3.
3.CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to TM-179, "Checking the A/T Fluid
(ATF)".
OK or NG
OK >> GO TO 4.
NG >> Refill ATF.
4.CHECK LINE PRESSURE
Check line pressure at the engine stall point. Refer to TM-188,
"Inspection and Judgment".
OK or NG
OK >> GO TO 7.
NG - 1 >> Line pressure high. GO TO 5.
NG - 2 >> Line pressure low. GO TO 6.
5.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to TM-203, "Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer to TM-232, "Disassembly"
.
3. Check the following items:
- Oil pump assembly. Refer to TM-249, "Oil Pump"
.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
6.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to TM-203, "Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer to TM-232, "Disassembly"
.
3. Check the following items:
- Oil pump assembly. Refer to TM-249, "Oil Pump"
.
SAT638A
SAT494G
Revision: December 20092009 QX56

TM-134
< SYMPTOM DIAGNOSIS >
SYSTEM SYMPTOM
- Power train system. Refer to TM-232, "Disassembly".
- Transmission case. Refer to TM-232, "Disassembly"
.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7.CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to TM-201, "Oil Pan"
.
2. Check A/T fluid condition. Refer to TM-179, "Checking the A/T
Fluid (ATF)".
OK or NG
OK >> GO TO 8.
NG >> GO TO 11.
8.DETECT MALFUNCTIONING ITEM
 Check the malfunction items. If any items are dam aged, repair or replace damaged parts. Refer to TM-152,
"Symptom Table" (Symptom No.11).
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
9.CHECK SYMPTOM
Check again. Refer to TM-191, "Cruise Test - Part 1"
, TM-193, "Cruise Test - Part 2", TM-194, "Cruise Test -
Part 3"
OK or NG
OK >> INSPECTION END
NG >> GO TO 10.
10.PERFORM TCM INSPECTION
1. Perform TCM input/output signals inspection. Refer to TM-104, "Reference Value"
.
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.
11 .DETECT MALFUNCTIONING ITEM
 Check the malfunction items. If any items are dam aged, repair or replace damaged parts. Refer to TM-152,
"Symptom Table" (Symptom No.11).
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
A/T Does Not Shift: D3 →D4INFOID:0000000003772001
SYMPTOM:
The vehicle does not shift-up from the D3 to D4 gear at the specified speed.
 The vehicle does not shift-up from the D
3 to D4 gear unless A/T is warmed up.
DIAGNOSTIC PROCEDURE
1.CONFIRM THE SYMPTOM
SCIA5199E
Revision: December 20092009 QX56

SYSTEM SYMPTOMTM-135
< SYMPTOM DIAGNOSIS >
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Check if vehicle creeps forward in “D” position and vehicle can be started from D1.
OK or NG
OK >> GO TO 2.
NG >> Refer to TM-126, "Vehicle Does Not Creep Forward in "D" Position"
, TM-129, "Vehicle Cannot Be
Started from D1".
2.CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to TM-32, "CONSULT-III Function (TRANSMISSION)"
.
Do the self-diagnostic results indicate front brake solenoid valve, input clutch solenoid valve, accelerator pedal
position sensor, output speed sensor and vehicle speed signal?
YES >> Check the malfunctioning system. Refer to TM-82, "Diagnosis Procedure", TM-80, "Diagnosis
Procedure", EC-374, "Diagnosis Procedure", TM-50, "Diagnosis Procedure", TM-74, "Diagnosis
Procedure".
NO >> GO TO 3.
3.CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to TM-179, "Checking the A/T Fluid
(ATF)".
OK or NG
OK >> GO TO 4.
NG >> Refill ATF.
4.CHECK LINE PRESSURE
Check line pressure at the engine stall point. Refer to TM-188,
"Inspection and Judgment".
OK or NG
OK >> GO TO 7.
NG - 1 >> Line pressure high. GO TO 5.
NG - 2 >> Line pressure low. GO TO 6.
5.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to TM-203, "Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer to TM-232, "Disassembly"
.
3. Check the following items:
- Oil pump assembly. Refer to TM-249, "Oil Pump"
.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
6.DETECT MALFUNCTIONING ITEM
1. Check control valve with TCM. Refer to TM-203, "Control Valve with TCM and A/T Fluid Temperature Sen-
sor 2".
2. Disassemble A/T. Refer to TM-232, "Disassembly"
.
3. Check the following items:
- Oil pump assembly. Refer to TM-249, "Oil Pump"
.
- Power train system. Refer to TM-232, "Disassembly"
.
- Transmission case. Refer to TM-232, "Disassembly"
.
SAT638A
SAT494G
Revision: December 20092009 QX56