Infiniti FX35, FX50 (S51). Manual — part 857
P0850 PNP SWITCH
EC-969
< DTC/CIRCUIT DIAGNOSIS >
[VK50VE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
4.
Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Go to
NO
>> INSPECTION END
5.
PERFORM COMPONENT FUNCTION CHECK
With GST
Perform Component Function Check. Refer to
EC-969, "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
>> Go to
Component Function Check
INFOID:0000000005237442
1.
PERFORM COMPONENT FUNCTION CHECK
With GST
1.
Turn ignition switch ON.
2.
Check the voltage between ECM harness connector terminals under the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Go to
Diagnosis Procedure
INFOID:0000000005237443
1.
CHECK DTC WITH TCM
TM-242, "Diagnosis Description"
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace malfunctioning part.
2.
CHECK STARTING SYSTEM
Turn ignition switch OFF, then turn it to START.
Does starter motor operate?
YES
>> GO TO 3.
NO
>> Check DTC with BCM. Refer to
3.
CHECK PNP SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect A/T assembly harness connector.
3.
Disconnect ECM harness connector.
4.
Check the continuity between A/T assembly harness connector and ECM harness connector.
VHCL SPEED SE
More than 64 km/h (40 mph)
Selector lever
Suitable position
ECM
Condition
Voltage (V)
Connector
+
–
Terminal
Terminal
M160
116
128
Selector lever
P or N position
Battery voltage
Except above position
Approx. 0
EC-970
< DTC/CIRCUIT DIAGNOSIS >
[VK50VE]
P0850 PNP SWITCH
5.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors F10, E10
• Harness connectors E106, M6
• Harness for open or short between A/T assembly and ECM
>> Repair open circuit, short to ground or short to power in harness or connectors.
5.
CHECK INTERMITTENT INCIDENT
GI-36, "Intermittent Incident"
>> INSPECTION END
A/T assembly
ECM
Continuity
Connector
Terminal
Connector
Terminal
F51
9
M160
116
Existed
P100A, P100B VVEL SYSTEM
EC-971
< DTC/CIRCUIT DIAGNOSIS >
[VK50VE]
C
D
E
F
G
H
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EC
N
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P100A, P100B VVEL SYSTEM
DTC Logic
INFOID:0000000005237444
DTC DETECTION LOGIC
NOTE:
If DTC P100A or P100B is displayed with DTC P1090 or P1093, first perform the trouble diagnosis for DTC
P1090 or P1093. Refer to
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting 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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start engine.
2.
Depress the accelerator pedal rapidly half or more under no load conditions, and then release it.
3.
Wait at idle for 5 seconds or more.
4.
Repeat steps 2 to 3 for three times.
5.
Check 1st trip DTC.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005237445
1.
CHECK GROUND CONNECTION
1.
Turn ignition switch OFF.
2.
Check ground connection M95. Refer to Ground Inspection in
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
VVEL ACTUATOR MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Disconnect VVEL control module harness connector.
2.
Disconnect VVEL actuator motor harness connector.
3.
Check the continuity between VVEL control module harness connector and VVEL actuator motor harness
connector.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P100A
VVEL response malfunction
(bank 1)
Actual event response to target is
poor.
• Harness or connectors
(VVEL actuator motor circuit is open or shorted.)
• VVEL actuator motor
• VVEL actuator sub assembly
• VVEL ladder assembly
• VVEL control module
P100B
VVEL response malfunction
(bank 2)
EC-972
< DTC/CIRCUIT DIAGNOSIS >
[VK50VE]
P100A, P100B VVEL SYSTEM
4.
Also check harness for short to ground and power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors F10, E10
• Harness for open or short between VVEL actuator motor and VVEL control module
>> Repair open circuit, short to ground or short to power in harness or connectors.
4.
CHECK VVEL ACTUATOR MOTOR
EC-973, "Component Inspection (VVEL ACTUATOR MOTOR)"
.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 5.
5.
REPLACE VVEL ACTUATOR SUB ASSEMBLY
1.
Replace VVEL actuator sub assembly.
2.
EC-974, "Special Repair Requirement"
>> INSPECTION END
6.
CHECK INTERMITTENT INCIDENT
GI-36, "Intermittent Incident"
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair or replace.
7.
REPLACE VVEL CONTROL MODULE
1.
Replace VVEL control module.
2.
Go to
EC-579, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (VVEL CONTROL MOD-
ULE) : Special Repair Requirement"
>> GO TO 8.
8.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Erase 1st trip DTC.
3.
Perform DTC Confirmation Procedure.
See
Is the DTC P100A or P100B displayed again?
DTC No.
VVEL control module
VVEL actuator motor
Continuity
Bank
Connector
Terminal
Connector
Terminal
P100A
1
E15
12
F73
1
Existed
2
Not existed
25
1
Not existed
2
Existed
P100B
2
2
F71
1
Existed
2
Not existed
15
1
Not existed
2
Existed
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