2003 NISSAN X-TRAIL turn signal

EC-328
[QR (WITH EURO-OBD)]
DTC P1706 PNP SWITCH
Diagnostic Procedure
EBS00BCZ
1.CHECK GROUND CIRCUIT
1. Turn ignition switch "OFF".
2. Disconnect PNP switch harness connector.
3. Check harness continuity between PNP switch terminal 2 and body ground.
Refer to Wiring Diagram.
4. Also check harness for short to power.
OK or NG
OK >> GO TO 2.
NG >> Repair open circuit or short to power in harness or connectors.
2.CHECK INPUT SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 43 and PNP switch terminal 1.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to power in harness or connectors.
3.CHECK PNP SWITCH
Refer toAT-135, "
PARK/NEUTRAL POSITION SWITCH"(A/T models) orMT-13, "PARK/NEUTRAL POSI-
TION SWITCH"(M/T models).
OK or NG
OK >> GO TO 4.
NG >> Replace PNP switch.
4.CHECK INTERMITTENT INCIDENT
Refer toEC-107, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END Continuity should exist.
Continuity should exist.

DTC P1805 BRAKE SWITCH
EC-329
[QR (WITH EURO-OBD)]
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DTC P1805 BRAKE SWITCHPFP:25320
DescriptionEBS00BD0
Brake switch signal is applied to the ECM through the stop lamp switch when the brake pedal is depressed.
This signal is used mainly to decrease the engine speed when the vehicle is driving.
CONSULT-II Reference Value in Data Monitor ModeEBS00BD1
Specification data are reference values.
ECM Terminals and Reference ValueEBS00BD2
Specification data are reference values and are measured between each terminal and body ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
On Board Diagnosis LogicEBS00BD3
DTC Confirmation ProcedureEBS00BD4
WITH CONSULT-II
1. Turn ignition switch "ON".
2. Fully depress the brake pedal for at least 5 seconds.
3. Erase the DTC with CONSULT-II.
4. Select "DATA MONITOR" mode with CONSULT-II.
5. If 1st trip DTC is detected, go toEC-331, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure "WITH CONSULT-II" above.
MONITOR ITEM CONDITION SPECIFICATION
BRAKE SW
lIgnition switch: ONBrake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
40 P Stop lamp switch[Engineisrunning]
lBrake pedal fully releasedApproximately 0V
[Engineisrunning]
lBrake pedal fully depressedBATTERY VOLTAGE
(11 - 14V)
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1805
1805Brake switchA brake switch signal is not sent to ECM for an
extremely long time while the vehicle is driving.
lHarness or connectors
(Stop lamp switch circuit is open or
shorted.)
lStop lamp switch
SEF058Y

EC-332
[QR (WITH EURO-OBD)]
DTC P1805 BRAKE SWITCH
4.CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch "OFF".
2. Disconnect ECM harness connector.
3. Disconnect stop lamp switch harness connector.
4. Check harness continuity between ECM terminal 40 and stop
lamp switch terminal 2.
Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.DETECT MALFUNCTIONING PART
Check the following.
lHarness connectors M61, M41
lJoint connector-2 (LHD models)
lJoint connector-3 (RHD models)
lHarness for open or short between ECM and stop lamp switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK STOP LAMP SWITCH
Refer toEC-332, "
Component Inspection".
OK or NG
OK >> GO TO 7.
NG >> Replace stop lamp switch.
7.CHECK INTERMITTENT INCIDENT
Refer toEC-107, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS00BD7
STOP LAMP SWITCH
1. Disconnect stop lamp switch harness connector.Continuity should exist.
PBIB0498E
PBIB0498E

EC-334
[QR (WITH EURO-OBD)]
IGNITION SIGNAL
IGNITION SIGNAL
PFP:22448
Component DescriptionEBS00BD8
IGNITION COIL & POWER TRANSISTOR
The ignition signal from the ECM is sent to and amplified by the
power transistor. The power transistor turns on and off the ignition
coil primary circuit. This on-off operation induces the proper high
voltage in the coil secondary circuit.
ECM Terminals and Reference ValueEBS00BD9
Specification data are reference values and are measured between each terminal and body ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
PBIB0509E
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
21
22
23
24BR
PU
L/R
GY/RIgnition signal No. 1
Ignition signal No. 2
Ignition signal No. 3
Ignition signal No. 4[Engine is running]
lWarm-up condition
lIdle speed0-0.1V
[Engine is running]
lWarm-up condition
lEngine speed is 2,000 rpm.0-0.2V
PBIB0521E
PBIB0522E

IGNITION SIGNAL
EC-337
[QR (WITH EURO-OBD)]
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Diagnostic ProcedureEBS00BDB
1.CHECK ENGINE START
Turn ignition switch “OFF”, and restart engine.
Is engine running?
Ye s o r N o
Yes (With CONSULT-II)>>GO TO 2.
Yes (Without CONSULT-II)>>GO TO 3.
No >> GO TO 4.
2.CHECK OVERALL FUNCTION
With CONSULT-II
1. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-II.
2. Make sure that all circuits do not produce a momentary engine
speed drop.
OK or NG
OK >>INSPECTION END
NG >> GO TO 12.
3.CHECK OVERALL FUNCTION
Without CONSULT-II
1. Let engine idle.
2. Read the voltage signal between ECM terminals 21, 22, 23, 24
and ground with an oscilloscope.
3. Verify that the oscilloscope screen shows the signal wave as
shown below.
OK or NG
OK >>INSPECTION END
NG >> GO TO 12.
PBIB0133E
PBIB0579EPBIB0521E

EC-338
[QR (WITH EURO-OBD)]
IGNITION SIGNAL
4.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-I
1. Turn ignition switch ON.
2. Check voltage between ECM terminals 109, 111 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> Go toEC-108, "
POWER SUPPLY CIRCUIT FOR ECM"
.
5.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
Check voltage between ECM terminal 12 and ground with CON-
SULT-II or tester.
OK or NG
OK >> GO TO 10.
NG >> GO TO 6.
6.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect ECM relay.
4. Check harness continuity between ECM terminal 12 and ECM
relay terminal 7. Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
7.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-IV
Check voltage between ECM relay terminal 6 and ground with CON-
SULT-II or tester.
OK or NG
OK >> GO TO 9.
NG >> GO TO 8.Voltage: Battery voltage
PBIB0580E
Voltage: Battery voltage
PBIB0136E
Continuity should exist.
PBIB0493E
Voltage: Battery voltage
PBIB0581E

IGNITION SIGNAL
EC-339
[QR (WITH EURO-OBD)]
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8.DETECT MALFUNCTIONING PART
Check the following.
l20A fuse
lHarness or connectors E61, F38
lHarness for open and short between ECM relay and fuse
>> Repair or replace harness or connectors.
9.CHECK ECM RELAY
Refer toEC-113, "
Component Inspection".
OK or NG
OK >> GO TO 17.
NG >> Replace ECM relay.
10.CHECK CONDENSER CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Check harness continuity between ECM terminal 12 and con-
denser terminal 1, condenser terminal 2 and engine ground.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 11.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
11 .CHECK CONDENSER
Refer toEC-341, "
Component Inspection".
OK or NG
OK >> GO TO 12.
NG >> Replace condenser.Continuity should exist.
PBIB0509E

EC-340
[QR (WITH EURO-OBD)]
IGNITION SIGNAL
12.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-V
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect ignition coil harness connector.
4. Turn ignition switch ON.
5. Check voltage between ignition coil terminal 1 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 14.
NG >> GO TO 13.
13.DETECT MALFUNCTIONING PART
Check the following.
lHarness for open or short between ignition coil and ECM relay
lHarness for open or short between ignition coil and ECM
>> Repair or replace harness or connectors.
14.CHECK IGNITION COIL GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between ignition coil terminal 2 and engine ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 15.
NG >> Repair open circuit or short to power in harness or connectors.
PBIB0509E
Voltage: Battery voltage
SEF107S
Continuity should exist.