2005 NISSAN NAVARA check engine

AT-138
DTC P1757 FRONT BRAKE SOLENOID VALVE
Diagnostic Procedure
ECS00G07
1.CHECK INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T”
with CONSULT-II.
3. Start engine.
4. Read the value of “FR/B SOLENOID” while driving.
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 toAT- 1 6 4 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.DETECT MALFUNCTIONING ITEM
Check the following.
lA/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace control valve with TCM. Refer toAT- 2 1 8 , "Control Valve With TCM and A/T Fluid Temper-
ature Sensor 2".
NG >> Repair or replace damaged parts.
4.CHECK DTC
PerformAT- 1 3 7 , "
DTC Confirmation Procedure".
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
Item name ConditionDisplay value
(Approx.)
FR/B SOLENOIDFront brake engaged. Refer toAT- 1 7
. 0.6 - 0.8 A
Front brake disengaged. Refer toAT- 1 7
.0-0.05ASCIA4793E

DTC P1759 FRONT BRAKE SOLENOID VALVE FUNCTION
AT-139
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DTC P1759 FRONT BRAKE SOLENOID VALVE FUNCTIONPFP:31940
DescriptionECS00G08
lFront brake solenoid valve is controlled by TCM in response to signals sent from PNP switch, vehicle
speed sensor and accelerator pedal position sensor. Gears will then be shifted to the optimum position.
lThis is not only caused by electrical malfunction (circuits open or shorted) but also by mechanical mal-
function such as control valve sticking, improper solenoid valve operation.
CONSULT-II Reference ValueECS00G09
On Board Diagnosis LogicECS00G0A
Diagnostic trouble code “P1759 FR/B SOLENOID FNCT” with CONSULT-II or 6th judgement flicker without
CONSULT-II is detected under the following conditions.
lWhen TCM detects that actual gear ratio is irregular, and relation between gear position and condition of
ATF pressure switch 1 is irregular during depressing accelerator pedal. (Other than during shift change)
lWhen TCM detects that relation between gear position and condition of ATF pressure switch 1 is irregular
during releasing accelerator pedal. (Other than during shift change)
Possible CauseECS00G0B
lHarness or connectors
(The solenoid and switch circuits are open or shorted.)
lFront brake solenoid valve
lATFpressureswitch1
DTC Confirmation ProcedureECS00G0C
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-II
1. Start engine.
2. Accelerate vehicle to maintain the following conditions.
ACCELE POSI: 1.5/8 - 2.0/8
SLCT LVR POSI: “D” position
GEAR: “3”
“4” (FR/B ON/OFF)
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
3. Perform step 2 again.
4. Turn ignition switch OFF, then perform step 1 to 3 again.
5. Check “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-
II. If DTC (P1759) is detected, go toAT- 1 4 0 , "
Diagnostic Procedure".
If DTC (P1757) is detected, go toAT- 1 3 8 , "
Diagnostic Procedure".
If DTC (P1841) is detected, go toAT- 1 5 7 , "
Diagnostic Procedure".
Item name Condition Display value (Approx.)
FR/B SOLENOIDFront brake engaged. Refer toAT- 1 7
.0.6-0.8A
Front brake disengaged. Refer toAT- 1 7
.0-0.05A
AT F P R E S S W 1Front brake engaged. Refer toAT- 1 7
.ON
Front brake disengaged. Refer toAT- 1 7
.OFF
BCIA0031E

AT-140
DTC P1759 FRONT BRAKE SOLENOID VALVE FUNCTION
WITHOUT CONSULT-II
1. Start engine.
2. Accelerate vehicle to maintain the following conditions.
Accelerator opening: 1.5/8 - 2.0/8
Selector lever position: “D” position
Gear position: “3”
“4” (FR/B ON/OFF)
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
3. Perform step 2 again.
4. Turn ignition switch OFF position, then perform step 1 to 3 again.
5. Perform self-diagnosis. Refer toAT-89, "
Diagnostic Procedure Without CONSULT-II".
6. If DTC is detected, go toAT- 1 4 0 , "
Diagnostic Procedure".
Diagnostic ProcedureECS00G0D
1.CHECK INPUT SIGNALS
With CONSULT-II
1. Start engine.
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “A/T” with CONSULT-II.
3. Drive vehicle in the “D” position (3rd
4th gear), and confirm
the ON/OFF actuation of the “ATF PRES SW 1” and electrical
current value of “FR/B SOLENOID”.
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 toAT- 1 6 4 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.DETECT MALFUNCTIONING ITEM
Check the following.
lA/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace control valve with TCM. Refer toAT- 2 1 8 , "Control Valve With TCM and A/T Fluid Temper-
ature Sensor 2".
NG >> Repair or replace damaged parts.
Item name ConditionDisplay value
(Approx.)
FR/B SOLENOIDFront brake engaged. Refer toAT- 1 7
. 0.6 - 0.8 A
Front brake disengaged. Refer toAT- 1 7
.0-0.05A
AT F P R E S S W 1Front brake engaged. Refer toAT- 1 7
.ON
Front brake disengaged. Refer toAT- 1 7
.OFF
SCIA4796E

DTC P1762 DIRECT CLUTCH SOLENOID VALVE
AT-143
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Diagnostic ProcedureECS00G0J
1.CHECK INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T”
with CONSULT-II.
3. Start engine.
4. Read the value of “D/C SOLENOID” while driving.
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 toAT- 1 6 4 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.DETECT MALFUNCTIONING ITEM
Check the following.
lA/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace control valve with TCM. Refer toAT- 2 1 8 , "Control Valve With TCM and A/T Fluid Temper-
ature Sensor 2".
NG >> Repair or replace damaged parts.
4.CHECK DTC
PerformAT- 1 4 2 , "
DTC Confirmation Procedure".
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
Item name ConditionDisplay value
(Approx.)
D/C SOLENOIDDirect clutch disengaged. Refer toAT- 1 7
. 0.6 - 0.8 A
Direct clutch engaged. Refer toAT- 1 7
.0-0.05ASCIA4793E

AT-144
DTC P1764 DIRECT CLUTCH SOLENOID VALVE FUNCTION
DTC P1764 DIRECT CLUTCH SOLENOID VALVE FUNCTION
PFP:31940
DescriptionECS00G0K
lDirect clutch solenoid valve is controlled by TCM in response to signals sent from PNP switch, vehicle
speed sensor and accelerator pedal position sensor. Gears will then be shifted to the optimum position.
lThis is not only caused by electrical malfunction (circuits open or shorted) but also by mechanical mal-
function such as control valve sticking, improper solenoid valve operation.
CONSULT-II Reference ValueECS00G0L
On Board Diagnosis LogicECS00G0M
Diagnostic trouble code “P1764 D/C SOLENOID FNCTN” with CONSULT-II or 2nd judgement flicker without
CONSULT-II is detected under the following conditions.
lWhen TCM detects that actual gear ratio is irregular, and relation between gear position and condition of
ATF pressure switch 5 is irregular during depressing accelerator pedal. (Other than during shift change)
lWhen TCM detects that relation between gear position and condition of ATF pressure switch 5 is irregular
during releasing accelerator pedal. (Other than during shift change)
Possible CauseECS00G0N
lHarness or connectors
(The solenoid and switch circuits are open or shorted.)
lDirect clutch solenoid valve
lATF pressure switch 5
DTC Confirmation ProcedureECS00G0O
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-II
1. Start engine.
2. Accelerate vehicle to maintain the following conditions.
ACCELE POSI: 1.5/8 - 2.0/8
SLCT LVR POSI: “D” position
GEAR: “1”
“2” (D/C ON/OFF)
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
3. Perform step 2 again.
4. Turn ignition switch OFF, then perform step 1 to 3 again.
5. Check “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-
II. If DTC (P1764) is detected, go toAT- 1 4 5 , "
Diagnostic Procedure".
If DTC (P1762) is detected, go toAT- 1 4 3 , "
Diagnostic Procedure".
If DTC (P1845) is detected, go toAT- 1 6 1 , "
Diagnostic Procedure".
Item name Condition Display value (Approx.)
D/C SOLENOIDDirect clutch disengaged. Refer toAT- 1 7
. 0.6 - 0.8 A
Direct clutch engaged. Refer toAT- 1 7
.0-0.05A
AT F P R E S S W 5Direct clutch engaged. Refer toAT- 1 7
.ON
Direct clutch disengaged. Refer toAT- 1 7
.OFF
BCIA0031E

DTC P1764 DIRECT CLUTCH SOLENOID VALVE FUNCTION
AT-145
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WITHOUT CONSULT-II
1. Start engine.
2. Accelerate vehicle to maintain the following conditions.
Accelerator opening: 1.5/8 - 2.0/8
Selector lever position: “D” position
Gear position: “1”
“2” (D/C ON/OFF)
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
3. Perform step 2 again.
4. Turn ignition switch OFF position, then perform step 1 to 3 again.
5. Perform self-diagnosis. Refer toAT-89, "
Diagnostic Procedure Without CONSULT-II".
6. If DTC is detected, go toAT- 1 4 5 , "
Diagnostic Procedure".
Diagnostic ProcedureECS00G0P
1.CHECK INPUT SIGNALS
With CONSULT-II
1. Start engine.
2. Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “A/T” with CONSULT-II.
3. Drive vehicle in the “D” position (1st
2nd gear), and confirm
the display actuation of “ATF PRES SW 5” and electrical current
value of “D/C SOLENOID”.
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 toAT- 1 6 4 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.DETECT MALFUNCTIONING ITEM
Check the following.
lA/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace control valve with TCM. Refer toAT- 2 1 8 , "Control Valve With TCM and A/T Fluid Temper-
ature Sensor 2".
NG >> Repair or replace damaged parts.
Item name ConditionDisplay value
(Approx.)
D/C SOLENOIDDirect clutch disengaged. Refer toAT- 1 7
. 0.6 - 0.8 A
Direct clutch engaged. Refer toAT- 1 7
.0-0.05A
AT F P R E S S W 5Direct clutch engaged. Refer toAT- 1 7
.ON
Direct clutch disengaged. Refer toAT- 1 7
.OFF
SCIA4797E

AT-148
DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE
Diagnostic Procedure
ECS00G0V
1.CHECK INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T”
with CONSULT-II.
3. Start engine.
4. Read the value of “HLR/C SOLENOID” while driving.
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 toAT- 1 6 4 , "
MAIN POWER SUPPLY AND GROUND CIR-
CUIT".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.DETECT MALFUNCTIONING ITEM
Check the following.
lA/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> Replace control valve with TCM. Refer toAT- 2 1 8 , "Control Valve With TCM and A/T Fluid Temper-
ature Sensor 2".
NG >> Repair or replace damaged parts.
4.CHECK DTC
PerformAT- 1 4 7 , "
DTC Confirmation Procedure".
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
Item name ConditionDisplay value
(Approx.)
HLR/C SOLHigh and low reverse clutch disengaged.
Refer toAT- 1 7
.0.6 - 0.8 A
High and low reverse clutch engaged.
Refer toAT- 1 7
.0 - 0.05 A
SCIA4793E

DTC P1769 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE FUNCTION
AT-149
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DTC P1769 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE FUNCTION
PFP:31940
DescriptionECS00G0W
lHigh and low reverse clutch solenoid valve is controlled by TCM in response to signals sent from PNP
switch, vehicle speed sensor and accelerator pedal position sensor. Gears will then be shifted to the opti-
mum position.
lThis is not only caused by electrical malfunction (circuits open or shorted) but also by mechanical mal-
function such as control valve sticking, improper solenoid valve operation.
CONSULT-II Reference ValueECS00G0X
On Board Diagnosis LogicECS00G0Y
Diagnostic trouble code “P1769 HLR/C SOL FNCTN” with CONSULT-II or 8th judgement flicker without CON-
SULT-II is detected under the following conditions.
lWhen TCM detects that actual gear ratio is irregular, and relation between gear position and condition of
ATF pressure switch 6 is irregular during depressing accelerator pedal. (Other than during shift change)
lWhen TCM detects that relation between gear position and condition of ATF pressure switch 6 is irregular
during releasing accelerator pedal. (Other than during shift change)
Possible CauseECS00G0Z
lHarness or connectors
(The solenoid and switch circuits are open or shorted.)
lHigh and low reverse clutch solenoid valve
lATFpressureswitch6
DTC Confirmation ProcedureECS00G10
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-II
1. Start engine.
2. Accelerate vehicle to maintain the following conditions.
ACCELE POSI: 1.5/8 - 2.0/8
SLCT LVR POSI: “D” position
GEAR: “2”
“3” (HLR/C ON/OFF)
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
3. Perform step 2 again.
4. Turn ignition switch OFF, then perform step 1 to 3 again.
5. Check “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-
II. If DTC (P1769) is detected, go toAT- 1 5 0 , "
Diagnostic Procedure".
If DTC (P1767) is detected, go toAT- 1 4 8 , "
Diagnostic Procedure".
If DTC (P1846) is detected, go toAT- 1 6 3 , "
Diagnostic Procedure".
Item name Condition Display value (Approx.)
HLR/C SOLHigh and low reverse clutch disengaged. Refer toAT- 1 7
.0.6-0.8A
High and low reverse clutch engaged. Refer toAT- 1 7
.0-0.05A
AT F P R E S S W 6High and low reverse clutch engaged. Refer toAT- 1 7
.ON
High and low reverse clutch disengaged. Refer toAT- 1 7
.OFF
BCIA0031E