2004 NISSAN TERRANO Service Repair Manual

Diagnostic Procedure
1 CHECK START SIGNAL OVERALL FUNCTION
With CONSULT-II
1. Turn ignition switch ªONº.
2. Check ªSTART SIGNALº in ªDATA MONITORº mode with CONSULT-II under the following conditions.
SEF604X
Without CONSULT-II
Check voltage between ECM terminal 20 and ground under the following conditions.
SEF415Y
OK or NG
OK EINSPECTION END
NG EGO TO 2.
2 CHECK START SIGNAL INPUT SIGNAL CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector and ignition switch harness connector.
3. Check harness continuity between ECM terminal 20 and ignition switch terminal 5. Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK EGO TO 4.
NG EGO TO 3.
3 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors M787, F66 (LHD models)
I Harness for open or short between ECM and ignition switch
ERepair open circuit or short to ground or short to power in harness or connectors.
START SIGNALZD30DDTi
EC-254
http://vnx.su/

4 CHECK INTERMITTENT INCIDENT
Refer to ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-78.EINSPECTION END
START SIGNALZD30DDTi
Diagnostic Procedure (Cont'd)
EC-255
http://vnx.su/

Description
When the gear position is in ªNeutralº, neutral position is ªONº.
ECM detects the position because the continuity of the line (the
ªONº signal) exists.
CONSULT-II Reference Value in Data Monitor
Mode
Specification data are reference values.
MONITOR ITEMCONDITION SPECIFICATION
P/N POSI SW IIgnition switch: ON Shift lever: Park/Neutral ON
Except above OFF
ECM Terminals and Reference Value
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 damage the
ECM's transistor. Use a ground other than ECM terminals, such as the ground.
TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
22 BR/Y
(A/T
mod-
els)
G (M/T
mod-
els) Park/Neutral position
switch
Ignition switch ªONº
Gear position is ªNeutralº (M/T models)
Gear position is ªPº or ªNº (A/T models)
Approximately 0V
Ignition switch ªONº
Except the above gear position BATTERY VOLTAGE
(11 - 14V)
MEC029E
PARK/NEUTRAL POSITION (PNP) SWITCHZD30DDTi
EC-256
http://vnx.su/

Wiring Diagram
YEC197A
PARK/NEUTRAL POSITION (PNP) SWITCHZD30DDTi
EC-257
http://vnx.su/

Diagnostic Procedure
FOR M/T MODELS
1 CHECK OVERALL FUNCTION
With CONSULT-II
1. Turn ignition switch ªONº.
2. Select ªP/N POSI SWº in ªDATA MONITORº mode with CONSULT-II.
3. Check ªP/N POSI SWº signal under the following conditions.
SEF049Y
Without CONSULT-II
1. Turn ignition switch ªONº.
2. Check voltage between ECM terminal 22 and ground under the following conditions.
SEF419Y
OK or NG
OK EINSPECTION END
NG EGO TO 2.
PARK/NEUTRAL POSITION (PNP) SWITCHZD30DDTi
EC-258
http://vnx.su/

2 CHECK PNP SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Disconnect park/neutral position (PNP) switch harness connector.
MEC029E
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 ground and short to power.
OK or NG
OK EGO TO 3.
NG ERepair open circuit or short to ground or short to power in harness or connectors.
3 CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 22 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 EGO TO 5.
NG EGO TO 4.
4 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors M842, F135 (RHD models)
I Harness connectors F108, E225
I Harness for open or short between PNP switch and ECM
ERepair open circuit or short to ground or short to power in harness or connectors.
5 CHECK PARK/NEUTRAL POSITION SWITCH
Refer to MT section (ªPOSITION SWITCH CHECKº).
OK or NG
OK EGO TO 6.
NG EReplace park/neutral position switch.
PARK/NEUTRAL POSITION (PNP) SWITCHZD30DDTi
Diagnostic Procedure (Cont'd)
EC-259
http://vnx.su/

6 CHECK INTERMITTENT INCIDENT
Refer to ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-78.EINSPECTION END
FOR A/T MODELS
1 CHECK OVERALL FUNCTION
With CONSULT-II
1. Turn ignition switch ªONº.
2. Select ªP/N POSI SWº in ªDATA MONITORº mode with CONSULT-II.
3. Check ªP/N POSI SWº signal under the following conditions.
SEF049Y
Without CONSULT-II
1. Turn ignition switch ªONº.
2. Check voltage between ECM terminal 22 and ground under the following conditions.
SEF419Y
OK or NG
OK EINSPECTION END
NG EGO TO 2.
PARK/NEUTRAL POSITION (PNP) SWITCHZD30DDTi
Diagnostic Procedure (Cont'd)
EC-260
http://vnx.su/

2 CHECK PARK/NEUTRAL POSITION RELAY POWER SUPPLY CIRCUIT
Without CONSULT-II
1. Turn ignition switch ªOFFº.
2. Disconnect park/neutral position (PNP) relay harness connector.
MEC029E
3. Turn ignition switch ªONº.
4. Check voltage between PNP relay terminal 2 and ground under the following conditions.
MEC981D
MTBL1320
OK or NG
OK EGO TO 7.
NG EGO TO 3.
PARK/NEUTRAL POSITION (PNP) SWITCHZD30DDTi
Diagnostic Procedure (Cont'd)
EC-261
http://vnx.su/