2001 NISSAN X-TRAIL ignition

CAN SYSTEM (FOR M/T MODELS)
LAN-19
[CAN]
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2.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ECM connector.
2. Check the following.
●QR20DE engine models:
Resistance between ECM harness connector F43 terminals 33
(W) and 34 (R).
●YD22DDTi engine models:
Resistance between ECM harness connector F35 terminals E11
(W) and E10 (R).
OK or NG
OK >> Replace ECM.
NG >> Repair harness between harness connector M75 and
ECM.
4WD Control Unit Circuit CheckEKS002FR
1.CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Check the terminals and connector of 4WD control unit for damage, bend and loose connection (control
unit-side and harness-side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2.CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect 4WD control unit connector.
2. Check resistance between 4WD control unit harness connector
E122 terminals 48 (W) and 39 (R).
OK or NG
OK >> Replace 4WD control unit.
NG >> Repair harness between harness connector E119 and
4WD control unit. 33 (W) – 34 (R)
(QR20DE engine models) : Approx. 108 – 132Ω
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E11 (W) – E10 (R)
(YD22DDTi engine models) : Approx. 108 – 132Ω
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48 (W) – 39 (R) : Approx. 54 – 66Ω
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LAN-20
[CAN]
CAN SYSTEM (FOR M/T MODELS)
Steering Wheel Angle Sensor Circuit Check
EKS002FS
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Check the terminals and connector of steering wheel angle sensor for damage, bend and loose connec-
tion (sensor-side and harness-side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect steering wheel angle sensor connector.
2. Check resistance between steering wheel angle sensor harness
connector M81 terminals 4 (W) and 5 (R).
OK or NG
OK >> Replace steering wheel angle sensor.
NG >> Repair harness between harness connector M75 and
steering wheel angle sensor.
ESP/TCS/ABS Control Unit Circuit CheckEKS002LD
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Check following terminals and connector for damage, bend and loose connection (control unit-side and
harness-side).
●ESP/TCS/ABS control unit.
●Harness connector B103.
●Harness connector E119.
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect ESP/TCS/ABS control unit connector.
2. Check resistance between ESP/TCS/ABS control unit harness
connector B111 terminals 61 (W) and 63 (R).
OK or NG
OK >> Replace ESP/TCS/ABS control unit.
NG >> Repair harness between harness connector E116 and
ESP/TCS/ABS control unit. 4 (W) – 5 (R) : Approx. 54 – 66Ω
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61 (W) – 63 (R) : Approx. 108 – 132Ω
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CAN SYSTEM (FOR M/T MODELS)
LAN-21
[CAN]
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CAN Communication Circuit CheckEKS002LE
1.CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Check following terminals and connector for damage, bend and loose connection (control module-side,
control unit-side, sensor-side and harness-side).
●ESP/TCS/ABS control unit.
●4WD control unit.
●Steering wheel angle sensor.
●ECM.
●Between ESP/TCS/ABS control unit and ECM.
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2.CHECK HARNESS FOR SHORT CIRCUIT
1. Disconnect ESP/TCS/ABS control unit connector and harness connector B103.
2. Check continuity between ESP/TCS/ABS control unit harness
connector B111 terminals 61 (W) and 63 (R).
OK or NG
OK >> GO TO 3.
NG >> Repair harness between harness connector B103 and
ESP/TCS/ABS control unit.
3.CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between ESP/TCS/ABS control unit harness con-
nector B111 terminals 61 (W), 63 (R) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness between harness connector B103 and
ESP/TCS/ABS control unit. 61 (W) – 63 (R) : Continuity should not exist.
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61 (W) – ground : Continuity should not exist.
63 (R) – ground : Continuity should not exist.
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AUDIO
AV-3
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AUDIOPFP:28111
System DescriptionEKS002F2
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times
●to audio unit terminal 3 and
●to CD auto changer terminal 32
●through 15A fuse (No. 32, located in the fuse and fusible link box).
With the ignition switch in the ACC or ON position, power is supplied
●to audio unit terminal 6 and
●to CD auto changer terminal 36
●through 10A fuse [No. 4, located in the fuse block (J/B)]
Ground is supplied through the case of the audio unit.
Audio signals are supplied
●through audio unit terminals 5, 7, 9, 10, 11, 13, 15, 16
●to terminals 1 and 2 of front door speaker LH and RH,
●to terminals 1 and 2 of rear door speaker LH and RH and
●to terminals 1 and 2 of tweeter LH and RH (with 6-speakers)
NATS AUDIO LINK
Description
The link with the NATS IMMU implies that the audio unit can basically only be operated if connected to the
matching NATS IMMU to which the audio unit was initially fitted on the production line.
Since radio operation is impossible after the link with the NATS is disrupted theft of the audio unit is basically
useless since special equipment is required to reset the audio unit.
Initialization process for audio units that are linked to the NAT S I M M U
New audio units will be delivered to the factories in the “NEW” state, i.e. ready to be linked with the vehicle's
NATS. When the audio unit in “NEW” state is first switched on at the factory, it will start up communication with
the vehicle's immobilizer control unit (IMMU) and send a code (the “audio unit Code”) to the IMMU. The IMMU
will then store this code, which is unique to each audio unit, in its (permanent) memory.
Upon receipt of the code by the IMMU, the NATS will confirm correct receipt of the audio unit code to the audio
unit. Hereafter, the audio unit will operate as normal.
During the initialization process, “NEW” is displayed on the audio unit display. Normally though, communica-
tion between audio unit and IMMU takes such a short time (300 ms) that the audio unit seems to switch on
directly without showing “NEW” on its display.
Normal operation
Each time the audio unit is switched on afterwards, the audio unit code will be verified between the audio unit
and the NATS before the audio unit becomes operational. During the code verification process, “WAIT” is
shown on the audio unit display. Again, the communication takes such a short time (300 ms) that the audio
unit seems to switch on directly without showing “WAIT” on its display.
When the radio is locked
In case of a audio unit being linked with the vehicle's NATS (immobilizer system), disconnection of the link
between the audio unit and the IMMU will cause the audio unit to switch into the lock (“SECURE”) mode in
which the audio unit is fully inoperative. Hence, repair of the audio unit is basically impossible, unless the
audio unit is reset to the “NEW” state for which special decoding equipment is required.
Clarion has provided their authorized service representatives with so called “decoder boxes” which can bring
the audio unit back to the “NEW” state, enabling the audio unit to be switched on after which repair can be car-
ried out. Subsequently, when the repaired audio unit is delivered to the final user again, it will be in the “NEW”
state to enable re-linking the audio unit to the vehicle's immobilizer system. As a result of the above, repair of
the audio unit can only be done by an authorized Clarion representative (when the owner of the vehicle
requests repair and can show personal identification).

AV-4
AUDIO
Service Procedure
SPEED DEPENDENT VOLUME CONTROL
Description
If activated, the radio output volume will be automatically adjusted to compensate for increased driving noises
at higher driving speeds.
The radio receives a speed signal from the vehicle speed sensor (VSS) and selects the output volume.
PERSONAL AUDIO SETTINGS
Description
The radio is designed to store several settings (volume, bass, treble, preset stations and level of speed depen-
dent volume control) with every NATS ignition key used. Up to a maximum of 4 NATS keys can be registered.
During the communication mentioned under “Anti-Theft System”, the radio will recognize the used ignition key
and select the accompanying settings.
Item Service procedure Description
Battery disconnection No additional action required. —
Radio needs repair Repair needs to be done by authorized
representative of radio manufacturer since
radio cannot be operated unless it is reset
to NEW state, using special decoding
equipment.—
Replacement of radio by new part No additional action required. Radio is delivered in NEW state.
Transferring radio to another vehicle/
replacement of radio by an “old” partRadio needs to be reset to NEW state by
authorized representative of radio manu-
facturer.—
Replacement of IMMU Radio needs to be reset to NEW state by
authorized representative of Clarion.After switching on the radio, it will display
“SECURE” after 1 minute.
No communication from IMMU to radio 1. If NATS is malfunctioning, check NATS
system.
2. After NATS is repaired, reset radio to
NEW state by authorized representative
of Clarion.After switching on the radio, the radio will
display “SECURE” after 1 minute. Further
use of radio is impossible until communica-
tion is established again, or after radio is
reset by authorized representative of Clar-
ion.
When initialized between ECM and IMMU. Radio needs to be reset to NEW status by
authorized representative of Clarion.After switching on the radio, it will display
“SECURE” after 1 minute.

AV-12
AUDIO
Trouble Diagnoses
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AUDIO UNIT
Symptom Possible causes Repair order
Audio unit inoperative (no digital display
and no sound from speakers).1. 10A fuse
2. Poor audio unit case ground
3. Audio unit1. Check 10A fuse [No. 4, located
in fuse block (J/B)]. Turn ignition
switch ON and verify that battery
positive voltage is present at ter-
minal 6 of audio unit.
2. Check audio unit case ground.
3. Remove audio unit for repair.
Audio unit presets are lost when ignition
switch is turned OFF.1. 15A fuse
2. Audio unit1. Check 15A fuse (No. 32, located
in fuse and fusible link box) and
verify that battery positive volt-
age is present at terminal 3 of
audio unit.
2. Remove audio unit for repair.
Individual rear speaker is noisy or inopera-
tive.1. Each speaker
2. Output circuit to each speaker1. Check speaker.
2. Check the output circuits to each
speaker between audio unit and
each speaker.
AM/FM stations are weak or noisy. 1. Roof antenna
2. Audio unit ground
3. Audio unit1. Check roof antenna.
2. Check audio unit ground condi-
tion.
3. Remove audio unit for repair.
Audio unit generates noise in AM and FM
modes with engine running.1. Poor audio unit ground
2. Loose or missing ground bonding straps
3. Ignition condenser or rear window defogger
noise suppressor condenser
4. Ignition coil or secondary wiring
5. Audio unit1. Check audio unit ground.
2. Check ground bonding straps.
3. Replace ignition condenser or
rear window defogger noise sup-
pressor condenser.
4. Check ignition coil and second-
ary wiring.
5. Remove audio unit for repair.
Audio unit generates noise in AM and FM
modes with accessories on (switch pops
and motor noise).1. Poor audio unit ground
2. Antenna
3. Accessory ground
4. Malfunctioning accessory1. Check audio unit ground.
2. Check antenna.
3. Check accessory ground.
4. Replace accessory.

AUDIO
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InspectionEKS002F6
AUDIO UNIT
All voltage inspections are made with:
●Ignition switch ON or ACC
●Audio unit ON
●Audio unit connected (If audio unit is removed for inspection, supply a ground to the case using a jumper
wire.)
ANTENNA
Using a jumper wire, clip an auxiliary ground between antenna and body.
●If reception improves, check antenna ground (at body surface).
●If reception does not improve, check main feeder cable for short circuit or open circuit.
Removal and Installation of Audio UnitEKS002PU
1. Remove instrument cluster lid “C”.
● Refer to IP-7, "CLUSTER LID C" in “Instrument Panel (IP)” section.
2. Remove screws and connector, and then remove audio unit.
3. Remove screws, and then bracket.
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AV-14
AUDIO
Locking CD auto-changer mechanism
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CAUTION:
●Prior to removing a malfunctioning CD auto-changer unit that will be shipped for repair, the
changer mechanism MUST BE LOCKED to prevent the mechanism from being damaged during
shipping.
●If a CD is jammed or unable to be removed from the unit, do NOT lock the changer mechanism. If
the unit is to be shipped for repair, carefully package the unit to prevent vibration and shock.
DAMPER LOCK PROCEDURE
1. Eject and remove any CDs from the CD auto-changer unit.
2. Turn ignition switch OFF. Wait until CD auto-changer unit display is off and mechanism stops moving
(mechanism sound stops).
3. Press any one of the disc selection buttons once. When a display shows on the CD auto-changer unit,
press the same disc selection button again within 5 seconds.
●The changer mechanism will lock itself within 10 seconds.
4. After mechanism stops moving (mechanism sound stops), disconnect negative battery terminal.
NOTE:
After installing a new or remanufactured CD auto-changer unit, switching the CD auto-changer unit ON will
automatically unlock the mechanism. A special unlocking procedure is not required.
Removal and Installation of CD Auto-ChangerEKS002UW
1. Perform damper lock. Refer to AV-14, "DAMPER LOCK PROCEDURE" .
2. Remove cluster lid finishers (left and right).
●Refer to IP-7, "CLUSTER LID FINISHER" in “Instrument Panel (IP)” section.
3. Remove screws, and then remove CD auto-changer with
bracket attached.
4. Remove screws, and then bracket.
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