Nissan Terrano r20e. Manual — part 188

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-389

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-390

Wiring Diagram

LHD MODELS

YEC151A

DTC P0380 GLOW RELAY, DTC P0381 GLOW LAMP

TD27Ti

EC-391

RHD MODELS

YEC152A

DTC P0380 GLOW RELAY, DTC P0381 GLOW LAMP

TD27Ti

Wiring Diagram (Cont’d)

EC-392