Page 1089 of 3833
ELECTRICAL LOAD SIGNAL
EC-739
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TBWA0399E
Page 1090 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual EC-740
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ELECTRICAL LOAD SIGNAL
Diagnostic Procedure
EBS00NLA
1. INSPECTION START
Do you have CONSULT-II?
Ye s o r N o
Yes >> GO TO 2.
No >> GO TO 5.
2. CHECK LOAD SIGNAL CI NISSAN X-TRAIL 2001 Service Repair Manual EC-740
[QR25(WITHOUT EURO-OBD)]
ELECTRICAL LOAD SIGNAL
Diagnostic Procedure
EBS00NLA
1. INSPECTION START
Do you have CONSULT-II?
Ye s o r N o
Yes >> GO TO 2.
No >> GO TO 5.
2. CHECK LOAD SIGNAL CI](/manual-img/5/57405/w960_57405-1089.png)
EC-740
[QR25(WITHOUT EURO-OBD)]
ELECTRICAL LOAD SIGNAL
Diagnostic Procedure
EBS00NLA
1. INSPECTION START
Do you have CONSULT-II?
Ye s o r N o
Yes >> GO TO 2.
No >> GO TO 5.
2. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
With CONSULT-II
1. Turn ignition switch “ON”.
2. Check “LOAD SIGNAL” in “DATA MONITOR” mode with CON-
SULT-II under the following conditions.
OK or NG
OK >> GO TO 3.
NG >> GO TO 8.
3. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
With CONSULT-II
1. Turn ignition switch “ON”.
2. Check “LOAD SIGNAL” in “DATA MONITOR” mode with CON-
SULT-II under the following conditions.
OK or NG
OK >> GO TO 4.
NG >> GO TO 12.
4. CHECK HEATER FAN SIGNAL CIRCUIT OVERALL FUNCTION
With CONSULT-II
1. Turn ignition switch “ON”.
2. Check “LOAD SIGNAL” in “DATA MONITOR” mode with CON-
SULT-II under the following conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 16.
Condition LOAD SIGNAL
Rear window defogger switch “ON” ON
Rear window defogger switch “OFF” OFF
PBIB0103E
Condition LOAD SIGNAL
Lighting switch “ON” at 2nd position ON
Lighting switch “OFF” OFF
PBIB0103E
Condition LOAD SIGNAL
Heater fan control switch “ON” ON
Heater fan control switch “OFF” OFF
PBIB0103E
Page 1091 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual ELECTRICAL LOAD SIGNAL
EC-741
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5.CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
Without CONSULT-II
1. Turn ignition switch “ON”.
2. Check voltage be NISSAN X-TRAIL 2001 Service Repair Manual ELECTRICAL LOAD SIGNAL
EC-741
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5.CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
Without CONSULT-II
1. Turn ignition switch “ON”.
2. Check voltage be](/manual-img/5/57405/w960_57405-1090.png)
ELECTRICAL LOAD SIGNAL
EC-741
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5.CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
Without CONSULT-II
1. Turn ignition switch “ON”.
2. Check voltage between ECM terminal 52 and ground under the
following conditions.
OK or NG
OK >> GO TO 6.
NG >> GO TO 8.
6.CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
Without CONSULT-II
1. Turn ignition switch “ON”.
2. Check voltage between ECM terminal 53 and ground under the
following conditions.
OK or NG
OK >> GO TO 7.
NG >> GO TO 12.
7.CHECK HEATER FAN CONTROL CIRCUIT OVERALL FUNCTION
Without CONSULT-II
1. Turn ignition switch “ON”.
2. Check voltage between ECM terminal 55 and ground under the
following conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 16.
8.CHECK REAR WINDOW DEFOGGER FUNCTION
1. Start engine.
2. Turn “ON” the rear window defogger switch.
3. Check the rear windshield. Is the rear windshield heated up?
Ye s o r N o
Ye s > > G O T O 9 .
No >> Refer to GW-10, "
REAR WINDOW DEFOGGER" .
Condition Voltage
Rear window defogger switch “ON” BATTERY VOLTAGE
Rear window defogger switch “OFF” 0V
PBIB0660E
Condition Voltage
Lighting switch “ON” at 2nd position BATTERY VOLTAGE
Lighting switch “OFF” 0V
PBIB0070E
Condition Voltage
Heater fan control switch “ON” 0V
heater fan control switch “OFF” Approximately 5V
PBIB0661E
Page 1092 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual EC-742
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ELECTRICAL LOAD SIGNAL
9. CHECK REAR WINDOW DEFOGGER INPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Stop engine.
2. Disconnect ECM harness connector.
3. Disconnect rear wind NISSAN X-TRAIL 2001 Service Repair Manual EC-742
[QR25(WITHOUT EURO-OBD)]
ELECTRICAL LOAD SIGNAL
9. CHECK REAR WINDOW DEFOGGER INPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Stop engine.
2. Disconnect ECM harness connector.
3. Disconnect rear wind](/manual-img/5/57405/w960_57405-1091.png)
EC-742
[QR25(WITHOUT EURO-OBD)]
ELECTRICAL LOAD SIGNAL
9. CHECK REAR WINDOW DEFOGGER INPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Stop engine.
2. Disconnect ECM harness connector.
3. Disconnect rear window defogger relay.
4. Check harness continuity between ECM terminal 52 and harness connector M17 terminal 1 (RHD mod-
els), 5 (LHD models).
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 11.
NG >> GO TO 10.
10. DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors M62, F42
●Harness for open and short between ECM and harness connector M17
>> Repair open circuit or short to ground or short to power in harness or connectors.
11 . CHECK INTERMITTENT INCIDENT
Perform EC-115, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
12. CHECK HEADLAMP FUNCTION
1. Start engine.
2. Turn the lighting switch “ON” at 2nd position.
3. Check that headlamps are illuminated.
OK or NG
OK >> GO TO 13.
NG >> Refer to LT-4, "
HEADLAMP" or LT- 9 , "HEADLAMP - DAYTIME LIGHT SYSTEM -" . Continuity should exist.
Page 1093 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual ELECTRICAL LOAD SIGNAL
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13.CHECK HEADLAMP INPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Stop engine.
2. Disconnect ECM harness connector.
3. Discon NISSAN X-TRAIL 2001 Service Repair Manual ELECTRICAL LOAD SIGNAL
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13.CHECK HEADLAMP INPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Stop engine.
2. Disconnect ECM harness connector.
3. Discon](/manual-img/5/57405/w960_57405-1092.png)
ELECTRICAL LOAD SIGNAL
EC-743
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13.CHECK HEADLAMP INPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Stop engine.
2. Disconnect ECM harness connector.
3. Disconnect lighting switch harness connectors.
4. Check harness continuity between ECM terminal 53 and lighting switch terminal 9, 10 under the following
conditions.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 15.
NG >> GO TO 14.
14.DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors E60, F36
●Diode E123, E124
●Harness for open and short between ECM and lighting switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
15.CHECK INTERMITTENT INCIDENT
Perform EC-115, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
16.CHECK HEATER FAN CONTROL FUNCTION
1. Start engine.
2. Turn “ON” the fan control switch.
3. Check the blower fan motor. Does the blower fan motor activate?
Ye s o r N o
Ye s > > G O T O 1 7 .
No >> Refer to AT C - 3 3 , "
TROUBLE DIAGNOSIS" .
Condition Continuity
1 Should exist
2 Should not exist
PBIB0662E
Page 1094 of 3833
EC-744
[QR25(WITHOUT EURO-OBD)]
ELECTRICAL LOAD SIGNAL
17. CHECK HEATER FAN SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Stop engine.
2. Disconnect ECM harness connector.
3. Disconnect A/C AUTO AMP. harness connector.
4. Check harness continuity between ECM terminal 55 and A/C AUTO AMP. terminal 19.
Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 19.
NG >> GO TO 18.
18. DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors M62, F42
●Harness for open and short between ECM and A/C AUTO AMP.
>> Repair open circuit or short to ground or short to power in harness or connectors.
19. CHECK INTERMITTENT INCIDENT
Perform EC-115, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.
Page 1095 of 3833
DATA LINK CONNECTOR
EC-745
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DATA LINK CONNECTORPFP:24814
Wiring DiagramEBS00NLB
TBWA0334E
Page 1096 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual EC-746
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EVAPORATIVE EMISSION SYSTEM
EVAPORATIVE EMISSION SYSTEM
PFP:14950
DescriptionEBS00NLC
SYSTEM DESCRIPTION
The evaporative emission system is used to reduce hydroc NISSAN X-TRAIL 2001 Service Repair Manual EC-746
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EVAPORATIVE EMISSION SYSTEM
EVAPORATIVE EMISSION SYSTEM
PFP:14950
DescriptionEBS00NLC
SYSTEM DESCRIPTION
The evaporative emission system is used to reduce hydroc](/manual-img/5/57405/w960_57405-1095.png)
EC-746
[QR25(WITHOUT EURO-OBD)]
EVAPORATIVE EMISSION SYSTEM
EVAPORATIVE EMISSION SYSTEM
PFP:14950
DescriptionEBS00NLC
SYSTEM DESCRIPTION
The evaporative emission system is used to reduce hydrocarbons emitted into the atmosphere from the fuel
system. This reduction of hydrocarbons is accomplished by activated charcoals in the EVAP canister.
The fuel vapor in the sealed fuel tank is led into the EVAP canister which contains activated carbon and the
vapor is stored there when the engine is not operating or when refueling to the fuel tank.
The vapor in the EVAP canister is purged by the air through the purge line to the intake manifold when the
engine is operating. EVAP canister purge volume control solenoid valve is controlled by ECM. When the
engine operates, the flow rate of vapor controlled by EVAP canister purge volume control solenoid valve is
proportionally regulated as the air flow increases.
EVAP canister purge volume control solenoid valve also shuts off the vapor purge line during decelerating and
idling.
PBIB0491E