Infiniti G37 Coupe. Manual — part 546
P100A, P100B VVEL SYSTEM
EC-365
< COMPONENT DIAGNOSIS >
[VQ37VHR]
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P100A, P100B VVEL SYSTEM
DTC Logic
INFOID:0000000001830767
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 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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10V 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 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:0000000001830768
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-366
< COMPONENT DIAGNOSIS >
[VQ37VHR]
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 F1, E3
• Harness for open or short between VVEL actuator motor and VVEL control module
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK VVEL ACTUATOR MOTOR
EC-367, "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.
Go to
EC-368, "Special Repair Requirement"
.
>> INSPECTION END
6.
CHECK INTERMITTENT INCIDENT
GI-38, "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.
EC-17, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (VVEL CONTROL MOD-
ULE) : Special Repair Requirement"
>> GO TO 8.
8.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III
1.
Turn ignition switch ON.
2.
Select “SELF-DIAG RESULTS” mode with CONSULT-III.
3.
Touch “ERASE”.
4.
Perform DTC Confirmation Procedure.
DTC No.
VVEL control module
VVEL actuator motor
Continuity
Bank
Connector
Terminal
Connector
Terminal
P100A
1
E15
12
F48
1
Existed
2
Not existed
25
1
Not existed
2
Existed
P100B
2
2
F49
1
Existed
2
Not existed
15
1
Not existed
2
Existed
P100A, P100B VVEL SYSTEM
EC-367
< COMPONENT DIAGNOSIS >
[VQ37VHR]
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.
With GST
1.
Turn ignition switch ON.
2.
Select Service $04 with GST.
3.
Perform DTC Confirmation Procedure.
See
.
Is the DTC P100A or P100B displayed again?
YES
>> GO TO 9.
NO
>> INSPECTION END
9.
CHECK VVEL ACTUATOR SUB ASSEMBLY
EC-368, "Component Inspection (VVEL ACTUATOR SUB ASSEMBLY)"
.
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> GO TO 10.
10.
REPLACE VVEL ACTUATOR SUB ASSEMBLY
1.
Replace VVEL actuator sub assembly.
2.
Go to
EC-368, "Special Repair Requirement"
.
>> INSPECTION END
11.
CHECK VVEL LADDER ASSEMBLY
.
Is the inspection result normal?
YES
>> GO TO 13.
NO
>> GO TO 12.
12.
REPLACE CYLINDER HEAD, VVEL LADDER ASSEMBLY AND VVEL ACTUATOR SUB ASSEMBLY
1.
Replace cylinder head, VVEL ladder assembly and VVEL actuator sub assembly.
2.
Go to
EC-368, "Special Repair Requirement"
.
>> INSPECTION END
13.
CHECK INTERMITTENT INCIDENT
GI-38, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection (VVEL ACTUATOR MOTOR)
INFOID:0000000001830770
1.
CHECK VVEL ACTUATOR MOTOR
1.
Turn ignition switch OFF.
2.
Disconnect VVEL actuator motor harness connector.
3.
Check resistance between VVEL actuator motor terminals as follows.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
REPLACE VVEL ACTUATOR SUB ASSEMBLY
1.
Replace VVEL actuator sub assembly.
2.
Go to
EC-368, "Special Repair Requirement"
.
VVEL actuator motor
Resistance
Terminal
1 and 2
16
Ω
or less
EC-368
< COMPONENT DIAGNOSIS >
[VQ37VHR]
P100A, P100B VVEL SYSTEM
>> INSPECTION END
Component Inspection (VVEL ACTUATOR SUB ASSEMBLY)
INFOID:0000000001830771
1.
CHECK VVEL ACTUATOR SUB ASSEMBLY
1.
Turn ignition switch OFF.
2.
Remove VVEL actuator sub assembly. Refer to
EM-84, "Disassembly and Assembly"
.
3.
Turn the ball screw shaft to check that it works smoothly.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
REPLACE VVEL ACTUATOR SUB ASSEMBLY
1.
Replace VVEL actuator sub assembly.
2.
Go to
EC-368, "Special Repair Requirement"
.
>> INSPECTION END
Special Repair Requirement
INFOID:0000000001830773
1.
PERFORM VVEL CONTROL SHAFT POSITION SENSOR ADJUSTMENT
Refer to
EC-21, "VVEL CONTROL SHAFT POSITION SENSOR ADJUSTMENT : Special Repair Require-
>> GO TO 2.
2.
PERFORM IDLE AIR VOLUME LEARNING
EC-19, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"
.
>> END
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