Nissan Silvia. Manual — part 167
3
CHECK WASTEGATE VALVE CONTROL SOLENOID VALVE CIRCUIT
With CONSULT-II
1. Turn ignition switch “ON”.
2. Select “TURBOCHARGE PRES” in ACTIVE TEST mode with CONSULT-II.
3. Check wastegate valve control solenoid valve operating sound when touching “Qd” and “Qu” on the CONSULT-II
screen.
SEC396C
Clicking sound should be heard.
OK or NG
OK
©
GO TO 5.
NG
©
GO TO 6.
4
CHECK WASTEGATE VALVE CONTROL SOLENOID VALVE CIRCUIT
Without CONSULT-II
1. Start engine.
2. Check wastegate valve control solenoid valve operating sound when revving engine up to 2,000 rpm and returning it to
idle.
SEC397C
Clicking sound should be heard.
OK or NG
OK
©
GO TO 5.
NG
©
GO TO 6.
GI
MA
EM
LC
FE
CL
MT
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
WASTEGATE VALVE CONTROL SOLENOID VALVE
Diagnostic Procedure (Cont’d)
EC-183
5
CHECK AIR PASSAGE HOSES
Check air passage hoses for clogging, cracks and improper connections. Refer to “Vacuum Hose Drawing”, EC-16.
SEF816F
OK or NG
OK
©
GO TO 10.
NG
©
Repair or replace air passage hoses.
6
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect wastegate valve control solenoid valve harness connector.
3. Turn ignition switch “ON”.
4. Check voltage between wastegate valve control solenoid valve terminal 1 and ground with CONSULT-II or tester.
SEC451C
Voltage: Battery voltage
OK or NG
OK
©
GO TO 8.
NG
©
GO TO 7.
7
DETECT MALFUNCTIONING PART
Check the following.
I
Harness connectors M60, F4
I
Fuse block (J/B) connector M7
I
Harness for open and short between wastegate valve control solenoid valve and fuse
©
Repair open circuit or short to ground or short to power in harness or connectors.
WASTEGATE VALVE CONTROL SOLENOID VALVE
Diagnostic Procedure (Cont’d)
EC-184
8
CHECK OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 115 and wastegate valve control solenoid valve terminal 2. Refer to
Wiring Diagram.
Continuity should exist.
OK or NG
OK
©
GO TO 9.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
9
CHECK WASTEGATE VALVE CONTROL SOLENOID VALVE
Refer to “Component Inspection”, EC-185.
OK or NG
OK
©
GO TO 10.
NG
©
Replace wastegate valve control solenoid valve.
10
CHECK INTERMITTENT INCIDENT
Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-82.
©
INSPECTION END
SEC452C
Component Inspection
NMEC0761
WASTEGATE VALVE CONTROL SOLENOID VALVE
NMEC0761S01
Check air passage continuity under the following conditions.
Condition
Air passage continuity
between A and B
12V direct current supply between terminals 1 and 2
No
No supply
Yes
If NG, replace wastegate valve control solenoid valve.
GI
MA
EM
LC
FE
CL
MT
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
WASTEGATE VALVE CONTROL SOLENOID VALVE
Diagnostic Procedure (Cont’d)
EC-185
AEC877A
Component Description
NMEC0762
When the gear position is “P” or “N”, park/neutral position (PNP)
switch is “ON”.
ECM detects the park/neutral position when continuity with ground
exists.
CONSULT-II Reference Value in Data Monitor
Mode
NMEC0763
Specification data are reference values.
MONITOR ITEM
CONDITION
SPECIFICATION
P/N POSI SW
I
Ignition switch: ON
Shift lever: “P” or “N”
ON
Except above
OFF
ECM Terminals and Reference Value
NMEC0764
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM’s transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
35
R/G
(A/T)
G/OR
(M/T)
PNP switch
[Ignition switch “ON”]
I
Gear position is “N” or “P” (A/T models)
I
Gear position is in neutral position (M/T models)
Approximately 0V
[Ignition switch “ON”]
I
Except the above gear position
BATTERY VOLTAGE
(11 - 14V)
PARK/NEUTRAL POSITION (PNP) SWITCH
Component Description
EC-186
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