Nissan Terrano model r20 series 2004. Manual — part 172
Diagnostic Procedure
INSPECTION START
CHECK INPUT SIGNAL CIRCUIT.
1. Turn ignition switch to “LOCK” position.
2. Disconnect crankshaft position sensor
(TDC) and ECM harness connectors.
3. Check continuity between ECM termi-
nal
344
and crankshaft position sen-
sor connector terminal
q
2
. Refer to wir-
ing diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
E
NG
Check the following:
I
Harness for open-circuit
between ECM and
crankshaft position sen-
sor (TDC).
If NG, repair harness or
connectors.
CHECK GROUND CIRCUIT-I.
Check harness continuity between crank-
shaft position sensor connector terminal
q
1
and ECM terminals
331
. Refer to wiring
diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
E
NG
Check the following:
I
Harness for open-circuit
between crankshaft
position sensor (TDC)
harness connector and
ECM
If NG, repair harness or
connectors.
CHECK GROUND CIRCUIT-II.
Check harness continuity between crank-
shaft position sensor connector terminal
q
3
and ECM terminal
332
. Refer to wiring
diagram.
Continuity should exist.
If OK, check harness for short-circuit.
OK
E
NG
Check the following:
I
Harness for open-circuit
between crankshaft
position sensor (TDC)
and engine ground.
If NG, repair harness or
connectors.
CHECK COMPONENT
[Crankshaft position sensor (TDC)].
Refer to “COMPONENT INSPECTION”,
EC-411.
OK
E
NG
Replace crankshaft posi-
tion sensor (TDC).
Disconnect and reconnect harness con-
nectors in the circuit. Then retest.
Trouble is not fixed.
Check ECM pin terminals for damage and
check the connection of ECM harness
connector. Reconnect ECM harness con-
nector and retest.
INSPECTION END
NEF712
NEF591
H
H
H
H
H
H
H
DTC P0335 CRANK POS SEN (TDC)
TD27Ti
EC-410
Component Inspection
CRANKSHAFT POSITION SENSOR (TDC)
1. Disconnect crankshaft position sensor (TDC) harness connec-
tor.
2. Loosen the fixing bolt of the sensor.
3. Remove the sensor.
4. Visually check the sensor for chipping.
5. Check resistance between terminals
q
1
and
q
2
.
Resistance: Approximately 900
Ω
[at 25°C (77°F)]
If NG, replace crankshaft position sensor (TDC).
CAUTION
Do not use any crankshaft position sensor (TDC) that has been
dropped or physically damaged.
Use only new one.
NEF716
MEC965D
DTC P0335 CRANK POS SEN (TDC)
TD27Ti
EC-411
System Description
GLOW CONTROL
Engine coolant temperature sensor
E
Engine coolant temperature
ECM
E
Glow relay
E
Glow plugs
Ignition switch
E
Start signal
E
Glow lamp
I
Pre-glow
When the ignition switch is turned on the ON position, the glow
indicator lamp will turn ON and pre-glow starts.
The glow relay is turned ON continuously. The ON time of both
the glow indicator lamp and the glow relay is determined by the
engine coolant temperature. Pre-glow ends when the pre-glow
time elapses or when the engine is started.
I
Intermediate glow
Intermediate glow starts when the pre-glow time has elapsed
and the engine has not been started. The glow relay is turned
ON intermittently. Intermediate glow ends when the intermedi-
ate glow time has elapsed, or when the engine is started.
I
After-glow
After-glow starts as soon as the engine is running and the
engine coolant temperature is below 50°C (122°F). The glow
relay is turned on continuously. After-glow ends when the after-
glow time elapses, or when the engine coolant temperature
exceeds 50°C (122°F).
MEC972D
DTC P0380 GLOW RELAY, DTC P0381 GLOW LAMP
TD27Ti
EC-412
Component Description
GLOW PLUG
The glow plug is provided with a ceramic heating element to obtain
a high-temperature resistance. It glows in response to a signal sent
from the ECM, allowing current to flow through the glow plug via the
glow relay.
On Board Diagnosis Logic
DTC
Malfunction is detected when .
Check Items
(Possible cause)
P0380
0803
I
Glow relay signal circuit is open or shorted.
I
Harness or connectors
(The glow relay signal circuit is open or shorted.)
I
Glow relay
P0381
0908
I
Glow indicator lamp circuit is open or shorted.
I
Harness or connectors
(The glow indicator lamp circuit is open or shorted.)
I
Glow lamp
DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch “ON” position.
2) Select “DATA MONITOR” mode with CONSULT-II.
3) Wait for at least 5 seconds.
WITHOUT CONSULT-II
1) Turn ignition switch “ON” position and then wait for at least 5
seconds.
2) Turn ignition switch OFF, wait for at least 5 seconds and then
turn on.
3) Perform “Diagnostic Test Mode II” (Self-diagnostic results).
SEF857S
DTC P0380 GLOW RELAY, DTC P0381 GLOW LAMP
TD27Ti
EC-413
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