
Trouble DiagnosesNJEL0385AUDIO UNITNJEL0385S05
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. 1, located in fuse block (J/B)].
Turn ignition switch ON and verify that battery posi-
tive voltage is present at terminal 3 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 block (J/B)]
and verify that battery positive voltage is present at
terminal 9 of audio unit.
2. Remove audio unit for repair.
Individual rear speaker is
noisy or inoperative.1. Each speaker
2. Output circuit to each speaker1. Check speaker.
2. Check the output circuits to each speaker
+between audio unit and speaker amp.
+between speaker amp. 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 condition.
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 defog-
ger 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 suppressor condenser.
4. Check ignition coil and secondary 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. Faulty accessory1. Check audio unit ground.
2. Check antenna.
3. Check accessory ground.
4. Replace accessory.
CD AUTOCHANGERNJEL0385S06Testing Magazines and DiscsNJEL0385S06011. Confirm discs are installed correctly into the magazine (not upside down).
2. Visually inspect/compare the customer's discs with each other and other discs.
Identify any of the following conditions:
+Discs with a large outside diameter. [Normal size is 120 mm (4.72 in).]
+Discs with rough or lipped edges.
+Discs with excessive thickness [Normal size is 1.2 mm (0.047 in).]
+Discs with scratches, abrasions, or pits on the surface.
+Discs with grease/oil, fingerprints, foreign material.
+Discs are warped due to excessive heat exposure.
3. Slide/place the discs in and out of the various magazine positions.
Identify any discs and/or positions that require additional force for placement/ejection. If interference
(sticking, excessive tensions) is found, replace the magazine or the discs.
NOTE:
+Discs which are marginally out of specification (ex. dirty, scratched and so on) may play correctly
on a home stereo.
However, when used in the automotive environment skipping may occur due to the added vehicle
movement and/or vibration due to road conditions. Autochangers should not be replaced when
discs are at fault.
+Use a soft damp cloth to wipe the discs starting from the center outward in radial direction. Never
use chemical cleaning solutions to clean the discs.
AUDIO
Trouble Diagnoses
EL-280

Trouble DiagnosesNJEL0225
Symptom Possible cause Repair order
Power sunroof cannot be operated
using any switch.1. 10A fuse, 30A fusible link and
M4 circuit breaker
2. Sunroof motor ground circuit
3. Sunroof switch
4. Sunroof switch circuit
5. Sunroof motor1. Check 10A fuse [No. 10, located in fuse block
(J/B)], 30A fusible link (letterE, located in fuse and
fusible link box) and M4 circuit breaker. Verify bat-
tery positive voltage is present at terminal 5 of sun-
roof motor. And then turn ignition switch ªONº and
verify battery positive voltage is present at terminal
5 of sunroof switch.
2. Check sunroof motor ground circuit.
3. Check sunroof switch.
4. Check harness between sunroof switch and sunroof
motor.
5. Check sunroof motor.
Power sunroof cannot be operated
using one of the sunroof switches.1. Sunroof switch
2. Sunroof switch circuit1. Check sunroof switch.
2. Check the harness between sunroof motor and sun-
roof switch.
POWER SUNROOF
Trouble Diagnoses
EL-293

System Description/Sedan=NJEL0391Power is supplied at all times
+from 30A fusible link (letterE, located in the fuse and fusible link box)
+to circuit breaker terminal 1
+through circuit breaker terminal 2
+to power window relay terminal 5.
With ignition switch in ON or START position, power is supplied
+through 10A fuse [No. 10, located in the fuse block (J/B)]
+to power window relay terminal 1.
Ground is supplied to power window relay terminal 2
+through body grounds M28 and M67.
The power window relay is energized and power is supplied
+through power window relay terminal 3
+to power window main switch terminal 1,
+to front power window sub-switch terminal 5,
+to rear power window sub-switch LH and RH terminals 5 (models with rear power window).
MANUAL OPERATIONNJEL0391S01Front Door (Driver Side)NJEL0391S0101Ground is supplied
+to power window main switch terminal 3
+through body grounds M28 and M67.
WINDOW UP
When the driver's window switch in the power window main switch is pressed in the up position, power is
supplied
+through power window main switch terminal 9
+to driver side power window regulator terminal 2.
Ground is supplied
+through power window main switch terminal 8
+to driver side power window regulator terminal 1.
Then, the motor raises the window until the switch is released.
WINDOW DOWN
When the driver's window switch in the power window main switch is pressed in the down position, power is
supplied
+through power window main switch terminal 8
+to driver side power window regulator terminal 1.
Ground is supplied
+to driver side power window regulator terminal 2
+through power window main switch terminal 9.
Then, the motor lowers the window until the switch is released.
Front Door (Passenger Side)NJEL0391S0102Ground is supplied
+to power window main switch terminal 3
+through body grounds M28 and M67.
NOTE:
Numbers in parentheses are terminal numbers, when power window switch is pressed in the UP and DOWN
positions respectively.
POWER WINDOW MAIN SWITCH OPERATION
Power is supplied
+through power window main switch (5, 6)
+to front power window sub-switch (3, 4).
POWER WINDOW
System Description/Sedan
EL-298

Trouble Diagnoses/SedanNJEL0394
Symptom Possible cause Repair order
None of the power windows can be
operated using any switch.1. 10A fuse
2. 30A fusible link, M4 circuit
breaker
3. Power window relay
4. Ground circuit
5. Power window main switch1. Check 10A fuse [No. 10, located in fuse block (J/B)]
Turn ignition switch ªONº and verify positive battery
voltage is present at terminal 1 of power window
relay.
2. Check 30A fusible link (letterE, located in fuse and
fusible link box) and M4 circuit breaker. Verify posi-
tive battery voltage is present at terminal 5 of power
window relay.
3. Check power window relay.
4. Check the following:
a. Check ground circuit of power window main switch.
b. Check power window relay ground circuit.
5. Check power window main switch.
Driver side power window cannot
be operated but other windows can
be operated.1. Driver side power window regu-
lator circuit
2. Driver side power window regu-
lator
3. Power window main switch1. Check harness between power window main switch
and driver side power window regulator for open or
short circuit.
2. Check driver side power window regulator.
3. Check power window main switch.
One or more power windows
except driver's side window cannot
be operated.1. Power window sub-switches
2. Power window regulators
3. Power window main switch
4. Power window circuit1. Check power window sub-switch.
2. Check power window regulator.
3. Check power window main switch.
4. Check the following.
a. Check harness between the power window relay
terminal 3 and power window sub-switch terminal 5.
b. Check harnesses between power window main
switch and power window sub-switch for open/short
circuit.
c. Check harnesses between power window sub-switch
and power window regulator for open/short circuit.
Power windows except driver's
side window cannot be operated
using power window main switch
but can be operated by power win-
dow sub-switch.1. Power window main switch 1. Check power window main switch.
Driver side power window auto-
matic operation does not function
properly.1. Power window main switch 1. Check power window main switch.
POWER WINDOW
Trouble Diagnoses/Sedan
EL-305

System Description/Hatchback=NJEL0498Power is supplied at all times
+from 30A fusible link (letterE, located in the fuse and fusible link box)
+to circuit breaker terminal 1
+through circuit breaker terminal 2
+to power window relay terminal 5
With ignition switch in ON or START position, power is supplied
+through 10A fuse [No. 10, located in the fuse block (J/B)]
+to power window relay terminal 1
Ground is supplied to power window relay terminal 2
+through body grounds M28 and M67.
The power window relay is energized and power is supplied
+through power window relay terminal 3
+to power window main switch terminal 1,
+to front power window sub-switch terminal 5,
+to rear power window sub-switch LH and RH terminals 5 (models with rear power window).
MANUAL OPERATIONNJEL0498S01Front Door (Driver Side)NJEL0498S0101Ground is supplied
+to power window main switch terminal 3
+through body grounds M28 and M67.
WINDOW UP
When the driver's window switch in the power window main switch is pressed in the up position, power is
supplied
+through power window main switch terminal 9
+to driver side power window regulator terminal 1.
Ground is supplied
+through power window main switch terminal 2
+to driver side power window regulator terminal 8.
Then, the motor raises the window until the switch is released.
WINDOW DOWN
When the driver's window switch in the power window main switch is pressed in the down position, power is
supplied
+through power window main switch terminal 8
+to driver side power window regulator terminal 2.
Ground is supplied
+to driver side power window regulator terminal 1
+through power window main switch terminal 9.
Then, the motor lowers the window until the switch is released.
Front Door (Passenger Side)NJEL0498S0102Ground is supplied
+to power window main switch terminal 3
+through body grounds M28 and M67.
NOTE:
Numbers in parentheses are terminal numbers, when power window switch is pressed in the UP and DOWN
positions respectively.
POWER WINDOW MAIN SWITCH OPERATION
Power is supplied
+through power window main switch (5, 6)
+to front power window sub-switch (3, 4).
POWER WINDOW
System Description/Hatchback
EL-306

Trouble Diagnoses/HatchbackNJEL0501
Symptom Possible cause Repair order
None of the power windows can be
operated using any switch.1. 10A fuse
2. 30A fusible link, M4 circuit
breaker
3. Power window relay
4. Ground circuit
5. Power window main switch1. Check 10A fuse [No. 10, located in fuse block (J/B)]
Turn ignition switch ªONº and verify positive battery
voltage is present at terminal 1 of power window
relay.
2. Check 30A fusible link (letterE, located in fuse and
fusible link box) and M4 circuit breaker. Verify posi-
tive battery voltage is present at terminal 5 of power
window relay.
3. Check power window relay.
4. Check the following:
a. Check ground circuit of power window main switch.
b. Check power window relay ground circuit.
5. Check power window main switch.
Driver side power window cannot
be operated but other windows can
be operated.1. Driver side power window regu-
lator circuit
2. Driver side power window regu-
lator
3. Power window main switch1. Check harness between power window main switch
and driver side power window regulator for open or
short circuit.
2. Check driver side power window regulator.
3. Check power window main switch.
One or more power windows
except driver's side window cannot
be operated.1. Power window sub-switches
2. Power window regulators
3. Power window main switch
4. Power window circuit1. Check power window sub-switch.
2. Check power window regulator.
3. Check power window main switch.
4. Check the following.
a. Check harness between the power window relay
terminal 3 and power window sub-switch terminal 5.
b. Check harnesses between power window main
switch and power window sub-switch for open/short
circuit.
c. Check harnesses between power window sub-switch
and power window regulator for open/short circuit.
Power windows except driver's
side window cannot be operated
using power window main switch
but can be operated by power win-
dow sub-switch.1. Power window main switch 1. Check power window main switch.
Driver side power window auto-
matic operation does not function
properly.1. Power window main switch 1. Check power window main switch.
POWER WINDOW
Trouble Diagnoses/Hatchback
EL-313

KEY SWITCH (INSERT) CHECK=NJEL0505S11
1 CHECK KEY SWITCH INPUT SIGNAL
Check voltage between time control unit terminal 22 and ground.
SEL433X
Refer to wiring diagram in EL-372.
OK or NG
OK©Key switch is OK.
NG©GO TO 2.
2 CHECK KEY SWITCH (INSERT)
Check continuity between key switch terminals 1 and 2.
YEL786C
OK or NG
OK©Check the following.
+10A fuse [No. 12, located in fuse block (J/B)]
+Harness for open or short between key switch and fuse
+Harness for open or short between time control unit and key switch
NG©Replace key switch.
System Description/SedanNJEL0509OPERATIONNJEL0509S01Power door lock/unlock operation by door key cylinder
+With the key inserted into front door key cylinder, turning it to LOCK will lock all doors.
+With the key inserted into front door key cylinder, turning it to UNLOCK will unlock all doors.
Power door lock/unlock operation by lock/unlock switch
+With lock/unlock switch setting to LOCK will lock all doors.
+With lock/unlock switch setting to UNLOCK will unlock all doors.
Key reminder system
+If the ignition key is in the ignition key cylinder and driver door is open, setting lock/unlock switch, lock
knob, key or multi-remote controller to ªLOCKº locks the door once but then immediately unlocks all doors.
(signal from door unlock sensor driver side)
POWER DOOR LOCK
Trouble Diagnoses/Hatchback (Cont'd)
EL-333

KEY SWITCH (INSERT) CHECK=NJEL0512S11
1 CHECK KEY SWITCH INPUT SIGNAL
Check voltage between time control unit terminal 18 and ground.
SEL990W
Refer to wiring diagram in EL-335.
OK or NG
OK©Key switch is OK.
NG©GO TO 2.
2 CHECK KEY SWITCH (INSERT)
Check continuity between key switch terminals 1 and 2.
SEL194WA
OK or NG
OK©Check the following.
+10A fuse [No. 12, located in fuse block (J/B)]
+Harness for open or short between key switch and fuse
+Harness for open or short between time control unit and key switch
NG©Replace key switch.
POWER DOOR LOCK
Trouble Diagnoses/Sedan (Cont'd)
EL-348