Infiniti QX56 (JA60). Manual — part 946
TM-86
< COMPONENT DIAGNOSIS >
P1762 DIRECT CLUTCH SOLENOID
P1762 DIRECT CLUTCH SOLENOID
Description
INFOID:0000000005148654
Direct clutch solenoid valve is controlled by the TCM in response to signals sent from the transmission range
switch, output speed sensor and accelerator pedal position sensor. Gears will then be shifted to the optimum
position.
CONSULT-III Reference Value in Data Monitor Mode
INFOID:0000000005148655
On Board Diagnosis Logic
INFOID:0000000005148656
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P1762 DRCT CLUTCH SOLENOID” with CONSULT-III is detected under the fol-
lowing conditions.
- When TCM detects an improper voltage drop when it tries to operate the solenoid valve.
- When TCM detects as irregular by comparing target value with monitor value.
Possible Cause
INFOID:0000000005148657
• Harness or connectors
(The solenoid circuit is open or shorted.)
• Direct clutch solenoid valve
DTC Confirmation Procedure
INFOID:0000000005148658
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Start engine.
4. Drive vehicle and maintain the following conditions for at least 5 consecutive seconds.
ACCELE POSI: 1.5/8 - 2.0/8
SLCT LVR POSI: “D” position
GEAR: 1st
⇒ 2nd (D/C ON/OFF)
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
5. If DTC is detected, go to
WITH GST
Follow the procedure “With CONSULT-III”.
Diagnosis Procedure
INFOID:0000000005148659
1.
CHECK INPUT SIGNAL
With CONSULT-III
1. Turn ignition switch “ON”.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Start the engine.
4. Read out the value of “D/C SOLENOID” while driving.
Item name
Condition
Display value (Approx.)
D/C SOLENOID
Direct clutch disengaged. Refer to
.
0.6 - 0.8 A
Direct clutch engaged. Refer to
.
0 - 0.05 A
P1762 DIRECT CLUTCH SOLENOID
TM-87
< COMPONENT DIAGNOSIS >
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 2.
2.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
DETECT MALFUNCTIONING ITEM
Check the following items:
• The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK
>> Replace the control valve with TCM. Refer to
TM-172, "Control Valve with TCM and A/T Fluid
Temperature Sensor 2 and Plug"
.
NG
>> Repair or replace damaged parts.
4.
CHECK DTC
Perform “DTC Confirmation Procedure”.
• Refer to
TM-86, "DTC Confirmation Procedure"
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
Item name
Condition
Display value (Approx.)
D/C SOLENOID
Direct clutch disengaged. Refer to
0.6 - 0.8 A
Direct clutch engaged. Refer to
0 - 0.05 A
TM-88
< COMPONENT DIAGNOSIS >
P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID
P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID
Description
INFOID:0000000005148660
High and low reverse clutch solenoid valve is controlled by the TCM in response to signals sent from the trans-
mission range switch, output speed sensor and accelerator pedal position sensor. Gears will then be shifted to
the optimum position.
CONSULT-III Reference Value in Data Monitor Mode
INFOID:0000000005148661
On Board Diagnosis Logic
INFOID:0000000005148662
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P1767 HLR CLUTCH SOLENOID” with CONSULT-III or is detected under the fol-
lowing conditions.
- When TCM detects an improper voltage drop when it tries to operate the solenoid valve.
- When TCM detects as irregular by comparing target value with monitor value.
Possible Cause
INFOID:0000000005148663
• Harness or connectors
(The solenoid circuit is open or shorted.)
• High and low reverse clutch solenoid valve
DTC Confirmation Procedure
INFOID:0000000005148664
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Start engine.
4. Drive vehicle and maintain the following conditions for at least 5 consecutive seconds.
ACCELE POSI: 1.5/8 - 2.0/8
SLCT LVR POSI: “D” position
GEAR: 2nd
⇒ 3rd (HLR/C ON/OFF)
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
5. If DTC is detected, go to
WITH GST
Follow the procedure “With CONSULT-III”.
Diagnosis Procedure
INFOID:0000000005148665
1.
CHECK INPUT SIGNAL
With CONSULT-III
1. Turn ignition switch “ON”.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Start the engine.
4. Read out the value of “HLR/C SOLENOID” while driving.
Item name
Condition
Display value (Approx.)
HLR/C SOL
High and low reverse clutch disengaged. Refer to
0.6 - 0.8 A
High and low reverse clutch engaged. Refer to
.
0 - 0.05 A
P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID
TM-89
< COMPONENT DIAGNOSIS >
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 2.
2.
CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit Refer to
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace damaged parts.
3.
DETECT MALFUNCTIONING ITEM
Check the following items:
• The A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK
>> Replace the control valve with TCM. Refer to
TM-172, "Control Valve with TCM and A/T Fluid
Temperature Sensor 2 and Plug"
.
NG
>> Repair or replace damaged parts.
4.
CHECK DTC
Perform “DTC Confirmation Procedure”.
• Refer to
TM-88, "DTC Confirmation Procedure"
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
Item name
Condition
Display value (Approx.)
HLR/C SOL
High and low reverse clutch disengaged. Refer to
0.6 - 0.8 A
High and low reverse clutch engaged. Refer to
.
0 - 0.05 A
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