Nissan Silvia. Instruction — part 168
Wiring Diagram
NMEC0765
TEC820
GI
MA
EM
LC
FE
CL
MT
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
PARK/NEUTRAL POSITION (PNP) SWITCH
Wiring Diagram
EC-187
Diagnostic Procedure
NMEC0766
FOR M/T MODELS
NMEC0766S01
1
INSPECTION START
Do you have CONSULT-II?
Yes or No
Yes
©
GO TO 2.
No
©
GO TO 3.
2
CHECK OVERALL FUNCTION
With CONSULT-II
1. Turn ignition switch “ON”.
2. Select “P/N POSI SW” in “DATA MONITOR” mode with CONSULT-II.
3. Check the “P/N POSI SW” signal under the following conditions.
SEF049Y
OK or NG
OK
©
INSPECTION END
NG
©
GO TO 4.
3
CHECK OVERALL FUNCTION
Without CONSULT-II
1. Turn ignition switch “ON”.
2. Check voltage between ECM terminal 35 and ground under the following conditions.
SEC432C
OK or NG
OK
©
INSPECTION END
NG
©
GO TO 4.
PARK/NEUTRAL POSITION (PNP) SWITCH
Diagnostic Procedure
EC-188
4
CHECK PNP SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect park/neutral position (PNP) switch harness connector.
3. Check harness continuity between PNP switch terminal 2 and body ground. Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to power.
OK or NG
OK
©
GO TO 6.
NG
©
GO TO 5.
5
DETECT MALFUNCTIONING PART
Check the following.
I
Harness connectors E26, E201
I
Harness for open or short between PNP switch and body ground
©
Repair open circuit or short to power in harness or connectors.
6
CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 35 and PNP switch terminal 1. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK
©
GO TO 8.
NG
©
GO TO 7.
7
DETECT MALFUNCTIONING PART
Check the following.
I
Harness connectors M10, E101
I
Harness connectors E26, E201
I
Harness for open or short between ECM and PNP switch
©
Repair open circuit or short to ground or short to power in harness or connectors.
8
CHECK PARK/NEUTRAL POSITION (PNP) SWITCH
Refer to MT-8, “Position Switch Check”.
OK or NG
OK
©
GO TO 9.
NG
©
Replace park/neutral position (PNP) switch.
9
CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-82.
©
INSPECTION END
GI
MA
EM
LC
FE
CL
MT
AT
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
PARK/NEUTRAL POSITION (PNP) SWITCH
Diagnostic Procedure (Cont’d)
EC-189
FOR A/T MODELS
=NMEC0766S02
1
INSPECTION START
Do you have CONSULT-II?
Yes or No
Yes
©
GO TO 2.
No
©
GO TO 3.
2
CHECK OVERALL FUNCTION
With CONSULT-II
1. Turn ignition switch “ON”.
2. Select “P/N POSI SW” in “DATA MONITOR” mode with CONSULT-II.
3. Check the “P/N POSI SW” signal under the following conditions.
SEF028Y
OK or NG
OK
©
INSPECTION END
NG
©
GO TO 4.
3
CHECK OVERALL FUNCTION
Without CONSULT-II
1. Turn ignition switch “ON”.
2. Check voltage between ECM terminal 35 and ground under the following conditions.
SEC433C
OK or NG
OK
©
INSPECTION END
NG
©
GO TO 5.
PARK/NEUTRAL POSITION (PNP) SWITCH
Diagnostic Procedure (Cont’d)
EC-190
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