2004 NISSAN TERRANO Service Repair Manual

RHD MODELS
YEC177A
DTC 0104 VEHICLE SPEED SENZD30DDTi
Wiring Diagram (Cont'd)EC-102
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Diagnostic Procedure
1 CHECK VEHICLE SPEED SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector and combination meter harness connector.
3. Check harness continuity between ECM terminal 26 and combination meter terminal 26. Refer to Wiring Diagram.Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK EGO TO 2.
NG ERepair open circuit or short to ground or short to power in harness or connectors.
2 CHECK SPEEDOMETER FUNCTION
Make sure that speedometer functions properly.
OK or NG
OK EGO TO 4.
NG EGO TO 3.
3 CHECK SPEEDOMETER CIRCUIT FOR OPEN AND SHORT
Check the following.
IHarness connectors F108, E225
I Harness connectors M842, F135 (RHD models)
I Harness for open or short between combination meter and vehicle speed sensor
OK or NG
OK ECheck vehicle speed sensor and combination meter. Refer to EL section.
NG ERepair open circuit or short to ground or short to power in harness or connectors.
4 CHECK INTERMITTENT INCIDENT
Refer to ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-78.
EINSPECTION END
DTC 0104 VEHICLE SPEED SENZD30DDTi
EC-103
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Description
The accelerator switch is installed to the accelerator pedal assem-
bly. The switch senses accelerator position and sends an ON-OFF
signal to the ECM. The ECM uses the signal to control the fuel cut
operation at deceleration for better fuel efficiency.
CONSULT-II Reference Value in Data Monitor
Mode
Specification data are reference values.
MONITOR ITEMCONDITION SPECIFICATION
ACCEL SW (FC) I
Ignition switch: ON
(Engine stopped) Accelerator pedal: fully released CLOSE
Accelerator pedal: slightly open OPEN
DECELER F/CUT IEngine: After warming up Idle OFF
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)
29 LG/R Accelerator switch (F/C) Ignition switch ªONº
Accelerator pedal fully released
BATTERY VOLTAGE
(11 - 14V)
Ignition switch ªONº
Accelerator pedal depressed Approximately 0V
On Board Diagnosis Logic
Malfunction is detected when ....
Check Items (Possible Cause)
I The OFF signal (short) is sent to the ECM for a certain period
of time even when the accelerator pedal is not being
depressed. I
Harness or connectors
(The switch circuit is shorted.)
I Accelerator switch (F/C)
MEC986D
DTC 0203 ACCEL POS SW (F/C)ZD30DDTi
EC-104
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DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch ªONº.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Fully depress and fully release accelerator pedal, and wait 15seconds.
4) Repeat step 3 at least 29 times.
5) If DTC is detected, go to ªDiagnostic Procedureº, EC-107.
WITHOUT CONSULT-II
1) Turn ignition switch ªONº.
2) Fully depress and fully release accelerator pedal, and then wait 15 seconds.
3) Repeat step 2 at least 29 times.
4) Turn ignition switch ªOFFº, wait at least 5 seconds and then turn ªONº.
5) Perform ªDiagnostic Test Mode II (Self-diagnostic results)º with ECM.
6) If DTC is detected, go to ªDiagnostic Procedureº, EC-107.SEF817Y
DTC 0203 ACCEL POS SW (F/C)ZD30DDTi
EC-105
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Wiring Diagram
YEC178A
DTC 0203 ACCEL POS SW (F/C)ZD30DDTi
EC-106
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Diagnostic Procedure
1 CHECK ACCELERATOR SWITCH (F/C) GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Loosen and retighten engine ground screws.
3. Disconnect accelerator switch (F/C) harness connector.
MEC995D
4. Check harness continuity between accelerator switch (F/C) terminal 3 and engine ground. Refer to Wiring Diagram.Continuity should exist.
5. Also check harness for short to ground and short to power.
OK or NG
OK EGO TO 3.
NG EGO TO 2.
2 DETECT MALFUNCTIONING PART
Check the following.
IHarness connectors F108, E225
I Harness connectors M842, F135 (RHD models)
I Harness for open or short between accelerator switch (F/C) and engine ground
ERepair open circuit or short to ground or short to power in harness or connectors.
3 CHECK ACCELERATOR SWITCH (F/C) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 29 and accelerator switch (F/C) terminal 1. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK EGO TO 4.
NG ERepair open circuit or short to ground or short to power in harness or connectors.
DTC 0203 ACCEL POS SW (F/C)ZD30DDTi
EC-107
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4 CHECK ACCELERATOR SWITCH (F/C)
1. Disconnect accelerator switch harness connector.
2. Check continuity between accelerator switch (F/C) connector terminals 1 and 3 under the following conditions.
MEC997D
MTBL1323
OK or NG
OK EGO TO 5.
NG EReplace accelerator pedal assembly.
5 CHECK INTERMITTENT INCIDENT
Refer to ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-78.
EINSPECTION END
DTC 0203 ACCEL POS SW (F/C)ZD30DDTi
Diagnostic Procedure (Cont'd)
EC-108
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Description
SYSTEM DESCRIPTION
SensorInput signal to ECMECM functionActuator
Vehicle speed sensor Vehicle speed
Cooling fan con-
trolCooling fan relay
Engine coolant temperature sensor Engine coolant temperature
Air conditioner switch Air conditioner ªONº signal
The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, air condi-
tioner ON signal. The control system has 2-step control [ON/OFF].
OPERATION
CONSULT-II Reference Value in Data Monitor
Mode
Specification data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
AIR COND SIG I
Engine: After warming up, idle the
engine Air conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates.)
ON
COOLING FAN I
When cooling fan is stopped. OFF
I When cooling fan operates. ON
SEF450Z
DTC 0208 OVER HEATZD30DDTi
EC-109
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