Nissan Pathfinder. Manual — part 512
EC-354
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
P0643 SENSOR POWER SUPPLY
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-49, "Intermittent Incident"
.
NO
>> GO TO 2.
2.
CHECK SENSOR POWER SUPPLY 1 ROUTING CIRCUIT FOR SHORT
1. Turn ignition switch OFF.
2. Disconnect following sensor harness connector.
3. Check harness for short to power and to ground, between the following terminals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
3.
CHECK COMPONENTS
Check the following.
• Throttle position sensor (Refer to
EC-209, "Component Inspection"
.)
• Battery current sensor (Refer to
EC-367, "Component Inspection"
.)
• Camshaft position sensor (PHASE) (bank 1) (Refer to
EC-287, "Component Inspection"
• Camshaft position sensor (PHASE) (bank 2) (Refer to
EC-287, "Component Inspection"
• Accelerator pedal position sensor (Refer to
EC-410, "Component Inspection"
.)
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-49, "Intermittent Incident"
.
NO
>> Replace malfunctioning component.
+
−
Voltage
(Approx.)
ECM
Connector
Terminal
F51
24
Ground
5 V
F52
75
83
87
E16
99
ECM
Sensor
+
Name
-
Connector
Terminal
Connector
Terminal
F51
24
TP sensor
F50
1
F52
75
Battery current sensor
F34
1
83
CMP sensor (PHASE) (bank 1)
F44
1
87
CMP sensor (PHASE) (bank 2)
F45
1
E16
99
APP sensor 1
E31
4
P0850 PNP SWITCH
EC-355
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
P0850 PNP SWITCH
Description
INFOID:0000000009178264
When the selector lever position is P or N, park/neutral position (PNP) signal from the transmission range
switch is sent to ECM.
DTC Logic
INFOID:0000000009178265
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
INSPECTION START
Will CONSULT be used?
Will CONSULT be used?
YES
>> GO TO 2.
NO
>> GO TO 5.
2.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 3.
3.
CHECK PNP SIGNAL
With CONSULT
1. Turn ignition switch ON.
2. Select “P/N POSI SW” in “DATA MONITOR” mode with CONSULT. Then check the “P/N POSI SW” signal
under the following conditions.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Proceed to
.
4.
PERFORM DTC CONFIRMATION PROCEDURE
1. Select “DATA MONITOR” mode with CONSULT.
2. Start engine and warm it up to normal operating temperature.
3. Maintain the following conditions for at least 50 consecutive seconds.
CAUTION:
Always drive vehicle at a safe speed.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0850
P-N POS SW/CIRCUIT
(Park/Neutral switch input
circuit)
The signal of the park/neutral position (PNP)
signal does not change during driving after the
engine is started.
• Harness or connectors
[The park/neutral position (PNP) signal
circuit is open or shorted.]
• TCM
Position (Selector lever)
Known-good signal
N or P position
ON
Except above position
OFF
ENG SPEED
1,100 - 6,375 rpm
COOLANT TEMP/S
More than 65
°C (149°F)
EC-356
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
P0850 PNP SWITCH
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Proceed to
.
NO
>> INSPECTION END
5.
PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to
EC-357, "Component Function Check"
NOTE:
Use component function check to check the overall function of the park/neutral position (PNP) signal circuit.
During this check, a 1st trip DTC might not be confirmed.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to
.
Component Function Check
INFOID:0000000009178266
1.
PERFORM COMPONENT FUNCTION CHECK
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to
.
Diagnosis Procedure
INFOID:0000000009178267
1.
CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect transmission range switch harness connector.
3. Turn ignition switch ON.
4. Check the voltage between transmission range switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between transmission range switch harness connector and IPDM E/R harness con-
nector.
B/FUEL SCHDL
2.2 - 31.8 msec
VHCL SPEED SE
More than 64 km/h (40 mph)
Selector lever
Suitable position
ECM
Condition
Voltage
Connector
+
–
Terminal
E16
118
128
Selector lever
position
P or N
Approx. 0 V
Except above
Battery voltage
+
−
Voltage
Transmission range switch
Connector
Terminal
F36
7
Ground
Battery voltage
P0850 PNP SWITCH
EC-357
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
4. Also check harness for short to ground.
Is the inspection result normal?
YES
>> Perform the trouble diagnosis for power supply circuit.
NO
>> Repair or replace error-detected parts.
3.
CHECK TRANSMISSION RANGE SWITCH SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between transmission range switch harness connector and ECM harness connector.
4. Also check harness for short to ground and to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected parts.
4.
CHECK TRANSMISSION RANGE SWITCH
Check the transmission range switch. Refer to
TM-103, "Component Inspection"
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-49, "Intermittent Incident"
.
NO
>> There is malfunction of transmission range switch. Replace transaxle assembly. Refer to
.
+
−
Continuity
Transmission range switch
IPDM E/R
Connector
Terminal
Connector
Terminal
F36
7
F54
63
Existed
+
−
Continuity
Transmission range switch
ECM
Connector
Terminal
Connector
Terminal
F36
10
E16
118
Existed
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст