Nissan Terrano model r20 series 2004. Instruction — part 96
Wiring Diagram
YEC178A
DTC 0203 ACCEL POS SW (F/C)
ZD30DDTi
EC-106
Diagnostic Procedure
1
CHECK ACCELERATOR SWITCH (F/C) GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
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
E
GO TO 3.
NG
E
GO TO 2.
2
DETECT MALFUNCTIONING PART
Check the following.
I
Harness connectors F108, E225
I
Harness connectors M842, F135 (RHD models)
I
Harness for open or short between accelerator switch (F/C) and engine ground
E
Repair 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
E
GO TO 4.
NG
E
Repair open circuit or short to ground or short to power in harness or connectors.
DTC 0203 ACCEL POS SW (F/C)
ZD30DDTi
EC-107
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
E
GO TO 5.
NG
E
Replace accelerator pedal assembly.
5
CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-78.
E
INSPECTION END
DTC 0203 ACCEL POS SW (F/C)
ZD30DDTi
Diagnostic Procedure (Cont’d)
EC-108
Description
SYSTEM DESCRIPTION
Sensor
Input signal to ECM
ECM function
Actuator
Vehicle speed sensor
Vehicle speed
Cooling fan con-
trol
Cooling fan relay
Engine coolant temperature sensor
Engine coolant temperature
Air conditioner switch
Air conditioner “ON” 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 HEAT
ZD30DDTi
EC-109
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