Nissan Terrano r20e. Instruction — part 107
SYSTEM — ENGINE CONTROL system
Malfunction
SYMPTOM
Reference
page
Feature
of
symptom,
Check
point
ROUGH
IDLE/HUNTING
IDLING
VIBRA
TION
SLOW/NO
RETURN
T
O
IDLE
OVERHEA
T/HIGH
ENGINE
COOLANT
TEMPERA
TURE
EXCESSIVE
FUEL
CONSUMPTION
EXCESSIVE
OIL
CONSUMPTION
ABNORMAL
SMOKE
COLOR
DEAD
BA
TTER
Y
(UNDER
CHARGE)
Malfunction
indicator
lamp
illuminates.
Can
be
detected
by
CONSUL
T
-II?
Fuel
cut
BLACK
SMOKE
WHITE
SMOKE
Warranty symptom code
AG AH AJ AK AL AM
AP
HA
ENGINE
CONTROL
EGR volume control valve circuit
*a, *b
*c
1
*8
Glow relay circuit
*a
1
*9
*b
*10
ECM relay (Self-shutoff) circuit
*a
1
*b
1
1
*11
ECM, Connector circuit
*a, *b
2
2
2
2
2
2
2
2
2
2
2
2
Air conditioner relay circuit
*a
*12
*b
*13
Air conditioner switch circuit
*a, *c
*13
*b
*14
1 - 5: The numbers refer to the order of inspection.
*a: Open
*b: Short
*c: Ground short
*d: Noise
*8: Does not stop operating.
*9: Glow lamp does not turn on.
*10: Glow lamp does not turn off.
*11: Ground short makes engine unable to stop.
*12: Air conditioner does not operate.
*13: Air conditioner does not stop operating.
*14: Air conditioner does not work.
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
ZD30DDTi
Symptom Matrix Chart (Cont’d)
EC-65
CONSULT-II Reference Value in Data Monitor
Mode
Remarks:
I
Specification data are reference values.
I
Specification data are output/input values which are detected or supplied by the ECM at the connector.
* Specification data may not be directly related to their components signals/values/operations.
MONITOR ITEM
CONDITION
SPECIFICATION
CKPS
⋅
RPM (TDC)
I
Tachometer: Connect
I
Run engine and compare tachometer indication with the CONSULT-II value.
Almost the same speed as the
CONSULT-II value.
CMPS
⋅
RPM-PUMP
COOLAN TEMP/S
I
Engine: After warming up
More than 70°C (158°F)
VHCL SPEED SE
I
Turn drive wheels and compare speedometer indication with the CONSULT-II value
Almost the same speed as the
CONSULT-II value
FUEL TEMP SEN
I
Engine: After warming up
More than 40°C (104°F)
ACCEL POS SEN
I
Ignition switch: ON
(Engine stopped)
Accelerator pedal: fully released
0.40 - 0.60V
Accelerator pedal: fully depressed
Approx. 4.5V
FULL ACCEL SW
I
Ignition switch: ON
(Engine stopped)
Accelerator pedal: fully depressed
ON
Except above
OFF
ACCEL SW (FC)
I
Ignition switch: ON
(Engine stopped)
Accelerator pedal: fully released
CLOSE
Accelerator pedal: slightly open
OPEN
OFF ACCEL SW
I
Ignition switch: ON
(Engine stopped)
Accelerator pedal: fully released
ON
Accelerator pedal: slightly open
OFF
SPILL/V
I
Engine: After warming up
Approx. 13°CA
BATTERY VOLT
I
Ignition switch: ON (Engine stopped)
11 - 14V
P/N POSI SW
I
Ignition switch: ON
Shift lever: Park/Neutral
ON
Except above
OFF
START SIGNAL
I
Ignition switch: ON
,
START
,
ON
OFF
,
ON
,
OFF
AIR COND SIG
I
Engine: After warming up, idle the
engine
Air conditioner switch: OFF
OFF
Air conditioner switch: ON
(Compressor operates.)
ON
BRAKE SW
I
Ignition switch: ON
Brake pedal: depressed
ON
Brake pedal: released
OFF
IGN SW
I
Ignition switch: ON
,
OFF
ON
,
OFF
WARM UP SW
I
Ignition switch: ON
Heat up switch: ON
ON
Heat up switch: OFF
OFF
MAS AIR/FL SE
I
Engine: After warming up
I
Air conditioner switch: OFF
I
Shift lever: Neutral position
I
No-load
Idle
1.6 - 2.0V
DECELER F/CUT
I
Engine: After warming up
Idle
OFF
INJ TIMG C/V
I
Engine: After warming up, idle the engine.
Approx. 50 - 70%
AIR COND RLY
I
Engine: After warming up, idle the
engine
Air conditioner switch: OFF
OFF
Air conditioner switch: ON
(Compressor operates.)
ON
GLOW RLY
I
Refer to EC-239.
COOLING FAN
I
When cooling fan is stopped.
OFF
I
When cooling fan operates.
ON
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
ZD30DDTi
EC-66
MONITOR ITEM
CONDITION
SPECIFICATION
EGR VOL CON/V
I
Engine: After warming up
I
Air conditioner switch: “OFF”
I
Shift lever: Neutral position
I
No-load
After 1 minute of idling
More than 10 steps
Revving engine from idle to 3,200 rpm
0 step
VNT S/V 1
I
Engine: After warming up
I
Air conditioner switch: “OFF”
I
Shift lever: Neutral position
I
No-load
Idle
Approx. 56%
2,000 rpm
Approx. 20%
BARO SEN
I
Ignition switch: ON
Altitude
Approx. 0 m (0 ft): Approx. 100.62
kPa (1.0062 bar, 1.026 kg/cm
2
,
14.59 psi)
Approx. 1,000 m (3,281 ft): Approx.
88.95 kPa (0.8895 bar, 0.907
kg/cm
2
, 12.90 psi)
Approx. 1,500 m (4,922 ft): Approx.
83.16 kPa (0.8316 bar, 0.848
kg/cm
2
, 12.06 psi)
Approx. 2,000 m (6,562 ft): Approx.
78.36 kPa (0.7836 bar, 0.799
kg/cm
2
, 11.36 psi)
SWRL CON S/V 1
I
Lift up the vehicle
I
Engine: After warming up let it idle for
more than 1 second.
I
Air conditioner switch: “OFF”
I
No-load
Shift lever: Except “P” and “Neutral” posi-
tions
ON
Shift lever: Neutral position
OFF
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
ZD30DDTi
CONSULT-II Reference Value in Data Monitor
Mode (Cont’d)
EC-67
Major Sensor Reference Graph in Data Monitor
Mode
The following are the major sensor reference graphs in “DATA MONITOR” mode.
ACCEL POS SEN, “CKPS
⋅
RPM (TDC)”, “MAS AIR/FL SE”
Below is the data for “ACCEL POS SEN”, “CKPS
⋅
RPM (TDC)” and “MAS AIR/FL SE” when revving engine
quickly up to 3,000 rpm under no load after warming up engine to the normal operating temperature.
Each value is for reference, the exact value may vary.
SEF321Y
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
ZD30DDTi
EC-68
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