Nissan Terrano model r20 series 2004. Manual — part 79

Relationship between MI, DTC, CONSULT-II and driving patterns

*1: When a malfunction is detected,

MI will light up.

*2: MI will not light up after ignition

switch is turned OFF.

*3: When a malfunction is detected

for the first time, the DTC will be
stored in ECM.

*4: The DTC will not be displayed any

longer after vehicle is driven 40
times without the same malfunc-
tion. (The DTC still remain in
ECM.)

*5: Other screens except SELF-DIAG-

NOSTIC RESULTS & DATA
MONITOR (AUTO TRIG) cannot
display the malfunction. DATA
MONITOR (AUTO TRIG) can dis-
play the malfunction at the
moment it is detected.

PBIB0589E

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

ZD30DDTi

Malfunction Indicator (MI) (Cont’d)

EC-38

CONSULT-II

CONSULT-II INSPECTION PROCEDURE

1. Turn ignition switch OFF.
2. Connect CONSULT-II to data link connector, which is located

under the driver side dash panel.

3. Turn ignition switch ON.

4. Touch “START (NISSAN BASED VHCL)”.

5. Touch “ENGINE”.
If “ENGINE” is not indicated, go to GI section, “CONSULT-II Data
Link Connector (DLC) Circuit”.

6. Perform each diagnostic test mode according to each service

procedure.

For further information, see the CONSULT-II Operation Manual.

MEC992D

MBIB0233E

SEF995X

PBIB0410E

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

ZD30DDTi

EC-39

ENGINE CONTROL COMPONENT PARTS/CONTROL
SYSTEMS APPLICATION

Item

DIAGNOSTIC TEST MODE

SELF-DIAG

RESULTS

DATA MONI-

TOR

ACTIVE

TEST

ENGINE

CONTROL

COMPONENT

P

ARTS

INPUT

Engine coolant temperature sensor

X

X

Vehicle speed sensor

X

X

Accelerator position sensor

X

X

X

Accelerator position switch

X

X

Accelerator switch (F/C)

X

X

Crankshaft position sensor (TDC)

X

X

Ignition switch (start signal)

X

Park/Neutral position (PNP) switch

X

Battery voltage

X

Air conditioner switch

X

Mass air flow sensor

X

X

Stop lamp switch

X

X

Heat up switch

X

Charge air pressure sensor

X

OUTPUT

Glow relay

X

X

EGR volume control valve

X

X

X

Cooling fan relay

X

X

X

Air conditioner relay

X

Variable nozzle turbocharger control solenoid valve

X

Swirl control valve control solenoid valve

X

X

X: Applicable

SELF-DIAGNOSTIC MODE

Regarding items detected in “SELF-DIAG RESULTS” mode,
refer to “TROUBLE DIAGNOSIS — INDEX”, EC-7.

DATA MONITOR MODE

Monitored item
[Unit]

ECM
input

signals

Main

signals

Description

Remarks

CKPS

⋅

RPM (TDC)

[rpm]

q

q

I

The engine speed computed from the
crankshaft position sensor (TDC) signal
is displayed.

CMPS

⋅

RPM

⋅

PUMP

[rpm]

q

q

I

The engine speed computed from the
pulse signal sent from electronic control
fuel injection pump is displayed.

COOLAN TEMP/S
[°C] or [°F]

q

q

I

The engine coolant temperature (deter-
mined by the signal voltage of the engine
coolant temperature sensor) is displayed.

I

When the engine coolant temperature
sensor is open or short-circuited, ECM
enters fail-safe mode. The engine cool-
ant temperature determined by the ECM
is displayed.

VHCL SPEED SE
[km/h] or [mph]

q

q

I

The vehicle speed computed from the
vehicle speed sensor signal is displayed.

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

ZD30DDTi

CONSULT-II (Cont’d)

EC-40

Monitored item
[Unit]

ECM
input

signals

Main

signals

Description

Remarks

FUEL TEMP SEN
[°C] or [°F]

q

q

I

The fuel temperature (sent from elec-
tronic control fuel injection pump) is dis-
played.

ACCEL POS SEN [V]

q

q

I

The accelerator position sensor signal
voltage is displayed.

FULL ACCEL SW
[ON/OFF]

q

q

I

Indicates [ON/OFF] condition from the
accelerator position switch signal.

ACCEL SW (FC)
[OPEN/CLOSE]

q

q

I

Indicates [OPEN/CLOSE] condition from
the accelerator switch (FC) signal.

OFF ACCEL SW
[ON/OFF]

q

q

I

Indicates [ON/OFF] condition from the
accelerator position switch signal.

SPILL/V [°CA]

q

I

The control position of spill valve (sent
from electronic control fuel injection
pump) is displayed.

BATTERY VOLT [V]

q

q

I

The power supply voltage of ECM is dis-
played.

P/N POSI SW
[ON/OFF]

q

q

I

Indicates [ON/OFF] condition from the
park/neutral position switch signal.

START SIGNAL
[ON/OFF]

q

q

I

Indicates [ON/OFF] condition from the
starter signal.

I

After starting the engine, [OFF] is dis-
played regardless of the starter signal.

AIR COND SIG
[ON/OFF]

q

q

I

Indicates [ON/OFF] condition of the air
conditioner switch as determined by the
air conditioner signal.

BRAKE SW [ON/OFF]

q

q

I

Indicates [ON/OFF] condition from the
stop lamp switch signal.

IGN SW
[ON/OFF]

q

q

I

Indicates [ON/OFF] condition from igni-
tion switch signal.

WARM UP SW
[ON/OFF]

q

I

Indicates [ON/OFF] condition from the
heat up switch signal.

MAS AIR/FL SE [V]

q

q

I

The signal voltage of the mass air flow
sensor is displayed.

I

When the engine is stopped, a certain
value is indicated.

DECELER F/CUT
[ON/OFF]

q

I

The [ON/OFF] condition from decelera-
tion fuel cut signal (sent from electronic
control fuel injection pump) is displayed.

INJ TIMG C/V [%]

q

I

The duty ratio of fuel injection timing
control valve (sent from electronic control
fuel injection pump) is displayed.

AIR COND RLY
[ON/OFF]

q

I

Indicates the control condition of the air
conditioner relay (determined by ECM
according to the input signals).

GLOW RLY [ON/OFF]

q

I

The glow relay control condition (deter-
mined by ECM according to the input
signal) is displayed.

COOLING FAN
[ON/OFF]

q

I

Indicates the control condition of the
cooling fans (determined by ECM
according to the input signal).

I

ON ... Operates.
OFF ... Stopped.

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

ZD30DDTi

CONSULT-II (Cont’d)

EC-41