2002 NISSAN TERRANO Service Repair Manual

17 CHECK GLOW PLUG
1. Remove glow plug connecting plate.
2. Check glow plug resistance.
MEC005EResistance: Approx. 0.5W[at 20ÉC (68ÉF)]
NOTE:
IDo not bump glow plug heating element. If it is bumped, replace glow plug with a new one.
IIf glow plug is dropped from a height of 10 cm (3.94 in) or higher, replace with a new one.
IIf glow plug installation hole is contaminated with carbon, remove it with a reamer or suitable tool.
IHand-tighten glow plug by turning it two or three times, then tighten using a tool to specified torque.
:15-20N×m (1.5 - 2.1 kg-m, 11 - 15 ft-lb)
OK or NG
OKEGO TO 18.
NGEReplace glow plug.
18 CHECK INTERMITTENT INCIDENT
Refer to ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-78.
EINSPECTION END
GLOW CONTROL SYSTEMZD30DDTi
Diagnostic Procedure (Cont'd)
EC-247

Wiring Diagram
YEC196A
START SIGNALZD30DDTi
EC-248

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
OKEINSPECTION END
NGEGO 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
OKEGO TO 4.
NGEGO TO 3.
3 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors M787, F66 (LHD models)
IHarness 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-249

4 CHECK INTERMITTENT INCIDENT
Refer to ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-78.
EINSPECTION END
START SIGNALZD30DDTi
Diagnostic Procedure (Cont'd)
EC-250

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 ITEM CONDITION SPECIFICATION
P/N POSI SWIIgnition switch: ONShift 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
COLORITEM CONDITION DATA (DC Voltage)
22BR/Y
(A/T
mod-
els)
G (M/T
mod-
els)Park/Neutral position
switchIgnition 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 positionBATTERY VOLTAGE
(11 - 14V)
MEC029E
PARK/NEUTRAL POSITION (PNP) SWITCHZD30DDTi
EC-251

Wiring Diagram
YEC197A
PARK/NEUTRAL POSITION (PNP) SWITCHZD30DDTi
EC-252

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
OKEINSPECTION END
NGEGO TO 2.
PARK/NEUTRAL POSITION (PNP) SWITCHZD30DDTi
EC-253

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
OKEGO TO 3.
NGERepair 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
OKEGO TO 5.
NGEGO TO 4.
4 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors M842, F135 (RHD models)
IHarness connectors F108, E225
IHarness 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
OKEGO TO 6.
NGEReplace park/neutral position switch.
PARK/NEUTRAL POSITION (PNP) SWITCHZD30DDTi
Diagnostic Procedure (Cont'd)
EC-254