Nissan Terrano r20e. Instruction — part 123
4
DETECT MALFUNCTIONING PART
Check the following.
I
Harness connectors E231, E220
I
Harness for open or short between electronic control fuel injection pump and engine ground
E
Repair open circuit or short to ground or short to power in harness or connectors.
5
CHECK COMMUNICATION LINE FOR OPEN AND SHORT
1. Check continuity between the following terminals. Refer to Wiring Diagram.
MTBL0444
Continuity should exist.
2. Also check harness for short to ground and short to power.
OK or NG
OK
E
GO TO 7.
NG
E
GO TO 6.
6
DETECT MALFUNCTIONING PART
Check the following.
I
Harness connectors E231, E220
I
Harness connectors E227, F106
I
Harness connectors F135, M842 (RHD models)
I
Harness for open or short between electronic control fuel injection pump and ECM
E
Repair open circuit or short to ground or short to power in harness or connectors.
7
CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-78.
OK or NG
OK
E
Replace electronic control fuel injection pump.
NG
E
Repair open circuit or short to ground or short to power in harness or connectors.
DTC 0402 P9
⋅
FUEL TEMP SEN
ZD30DDTi
Diagnostic Procedure (Cont’d)
EC-129
Description
The accelerator position sensor is installed on the upper end of the accelerator pedal assembly. The sensor
detects the accelerator position and sends a signal to the ECM. The ECM uses the signal to determine the
amount of fuel to be injected.
The accelerator position switch detects Off-accelerator switch signal and Full-accelerator switch signal and
send these signals to the ECM. The ECM will then determine engine idle conditions. These signals are also
used for diagnosing the accelerator position sensor.
CONSULT-II Reference Value in Data Monitor
Mode
Specification data are reference values.
MONITOR ITEM
CONDITION
SPECIFICATION
ACCEL POS SEN
I
Ignition switch: ON
(Engine stopped)
Accelerator pedal: released
0.40 - 0.60V
Accelerator pedal: depressed
Approx. 4.5V
FULL ACCEL SW
I
Ignition switch: ON
(Engine stopped)
Accelerator pedal: fully depressed
ON
Except above
OFF
OFF ACCEL SW
I
Ignition switch: ON
(Engine stopped)
Accelerator pedal: fully released
ON
Accelerator pedal: slightly open
OFF
SEF861SA
DTC 0403 ACCEL POS SENSOR
ZD30DDTi
EC-130
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
COLOR
ITEM
CONDITION
DATA (DC Voltage)
23
G
Accelerator position sen-
sor
Ignition switch “ON”
Accelerator pedal fully released
0.4 - 0.6V
Ignition switch “ON”
Accelerator pedal fully depressed
Approximately 4.5V
31
L/Y
Accelerator position switch
(Idle)
Ignition switch “ON”
Accelerator pedal fully released
BATTERY VOLTAGE
(11 - 14V)
Ignition switch “ON”
Accelerator pedal depressed
Approximately 0V
32
R/L
Accelerator position switch
(Full)
Ignition switch “ON”
Accelerator pedal released
Approximately 0V
Ignition switch “ON”
Accelerator pedal fully depressed
BATTERY VOLTAGE
(11 - 14V)
48
R/B
Accelerator position sen-
sor power supply
Ignition switch “ON”
Approximately 5V
51
B/W
(LHD
mod-
els)
R/W
(RHD
mod-
els)
Accelerator position sen-
sor ground
Engine is running.
Warm-up condition
Idle speed
Approximately 0V
On Board Diagnosis Logic
Malfunction is detected when ...
Check Items (Possible Cause)
I
The relation between sensor and switch signal is not in the
normal range during the specified accelerator position.
I
Harness or connectors
(The sensor circuit is open or shorted.)
I
Accelerator position sensor
I
Accelerator position switch
I
Accelerator switch (F/C)
DTC 0403 ACCEL POS SENSOR
ZD30DDTi
EC-131
DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch “ON”.
2) Select “DATA MONITOR” mode with CONSULT-II.
3) Depress and release fully accelerator pedal slowly.
4) If DTC is detected, go to “Diagnostic Procedure”, EC-135.
WITHOUT CONSULT-II
1) Turn ignition switch “ON”.
2) Depress and release fully accelerator pedal slowly.
3) Turn ignition switch “OFF”, wait at least 5 seconds and then turn
“ON”.
4) Perform “Diagnostic Test Mode II (Self-diagnostic results)” with
ECM.
5) If DTC is detected, go to “Diagnostic Procedure”, EC-135.
SEF817Y
DTC 0403 ACCEL POS SENSOR
ZD30DDTi
EC-132
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