AV-8
AUDIO
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 NATS IMMU
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).
AUDIO
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Speed Sensitive Volume System Does Not Work (With Casette Deck) EKS00EJ4
1. VEHICLE SPEED OPERATION CHECK
Does speedometer is operated normally?
Ye s o r N o
Ye s > > G O T O 2 .
No >> Check combination meter trouble diagnosis. Refer toDI-26, "
Vehicle Speed Signal Inspection [with
ESP]" in “COMBINATION METERS”.
2. VEHICLE SPEED SIGNAL CHECK
1. Start engine and drive vehicle at more than 40 km/h (25MPH).
2. Check the signal between audio unit harness connector M41
terminal 22 (L/W) and ground with CONSULT-ll or oscilloscope.
OK or NG
OK >> Replace audio unit.
NG >> GO TO 3.
3. HARNESS CHECK
1. Turn the ignition switch OFF.
2. Disconnect audio unit connector and combination meter con-
nector.
3. Check continuity between audio unit harness connector M41 ter-
minal 22 (L/W) and Unified meter control unit harness connector
M44 terminal 33 (L/W).
4. Check continuity between audio unit harness connector M42 ter-
minal 22 (L/W) and ground.
OK or NG
OK >> Check combination meter system. Refer to DI-20, "Diagnosis Flow" in “COMBINATION
METERS”.
NG >>
Check connector housings for disconnected or loose terminals.
Repair harness or connector. 22 (L/W) – Ground :Refer to AV- 2 9 , "
Te r m i n a l s
and Reference Value for
Audio Unit With Casette
Deck"
SKIA9127E
22 (L/W) - 33 (L/W) Continuity should exist.
Continuity should not exist.
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NAVIGATION SYSTEM
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Display With Pushed “ROUTE” Switch
Easy Mode
Expert Mode
The Function of Each Icon Is as Follows:
*: When destinations have been entered, route guidance has been turned OFF or destination has been reached, “Route Info.” and “Edit
Route” are not displayed.
SKIA1382E
SKIA1383E
IconMODE
Description
Easy Expert
Quick Stop××The selected facility is set as the destination or waypoint.
(Route guidance has been turned OFF or the destination has been reached)
Where am I?××Next, current and previous street names can be displayed.
Route Info.*×The following items can be set.
Complete Route
Tu rn List
Route Simulation
(Displayed only when the destination area has been set.)
Edit Route*×Change the destination or add the transit points of the route set in the route guide. (Dis-
played only when the automatic reroute function has been turned OFF and the recom-
mended route is not followed.)
Route Calculation×This key is used to start the route calculation after all the settings are completed.
Help×Explanation of Navigational functions appear on the Display.
NAVIGATION SYSTEM
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“NAVIGATION SETTINGS” mode
How To Perform Navigation Settings
1. Start the engine.
2. Push “SETTING” button.
3. Select “Navigation” key.
Easy Mode
Expert Mode
SKIA9543E
SKIA1385E
AV-72
NAVIGATION SYSTEM
Self-Diagnosis ModeEKS00F33
OPERATION PROCEDURE
1. Start the engine.
2. Push and hold “MAP” and “DAY/NIGHT” switches simulta-
neously for 5 seconds or more.
Push the “BACK” switch and the initial system screen will be
shown.
3. The initial trouble diagnosis screen will be shown, and items
“Self-Diagnosis” and “Confirmetion / Adjustment” will become
selective.
4. Perform self-diagnosis by selecting the “Self-Diagnosis”.
Self-diagnosis subdivision screen will be shown and the oper-
ation enters the self-diagnosis mode.
A bar graph shown below the self-diagnosis subdivision
screen indicates progress of the diagnosis.
5. On the “SELF-DIAGNOSIS” screen, each unit name will be col-
ored according to the diagnosis result, as follows.
If several malfunctions are present in a unit, color of its switch
on the screen will be either red, yellow, or gray, determined by
the malfunction of the highest priority.
Lines between navigation unit and GPS antenna are green or
yellow based on diagnosis results.
Lines between control unit and units other than those above are gray regardless of diagnosis results.
CAUTION:
Navigation Unit = NAVI control unit
Communication converter = Transfer unit
Satellite Switch = NAVI switch
SKIA9191E
SKIA0381E
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Green : No malfunctioning.
Yellow : Cannot be judged by self-diagnosis results.
Red : Unit is malfunctioning.
Gray : Diagnosis has not been done.
SKIA9192E
AV-74
NAVIGATION SYSTEM
SELF–DIAGNOSIS RESULT
Quick reference table
1. Select an applicable diagnosis No. in the diagnosis result quick reference table.
2. Find estimated malfunctioning system in the diagnosis No. table and perform check.
3. Turn the ignition switch to OFF and perform self-diagnosis again.
Diagnosis result quick reference table
CAUTION:
Check the following when the self-diagnosis mode cannot be used.
NAVI control unit power supply and ground.
Display power supply and ground.
NAVI switch power supply and ground.
Transfer unit power supply and ground.
AV communication line between NAVI switch and Display, AV communication line between Display and Transfer unit, AV communica-
tion line between Transfer unit and NAVI control unit.
Method of diagnosis for malfunctioning system
When system does not start, indicate malfunction connection between units by outbreak sound from sys-
tem.
Diagnosis procedure.
1. Turn ignition switch ON. Make sure whether or not route guide start sound which is output from NAVI con-
trol unit indicate 10 seconds after.
2. Push and hold “MAP” and “DAY/NIGHT” switches simultaneously for 5 seconds or more. Make sure
whether or not 2 times of beep sound or route guide start sound indicate.
3. According to the former two steps , Select an proper diagnosis No. in the diagnosis result quick reference
table.
4. Find estimated malfunctioning system from the diagnosis No. table and perform check.
Diagnosis result quick reference table
*:Indicated when pushing both “MAP” and “DAY/NIGHT” simultaneously. (Unnecessary to push them 5 seconds or more.)Screen switch
Diagnosis No.
Switch color Navigation Unit GPS antenna
Red×1
Gray×2
Ye l l o w×3
×4
××5
Procedure 1 Procedure 2
Diagnosis No.
10 seconds after turn ignition switch ON.Push and hold “MAP” and “DAY/NIGHT” switches
simultaneously for 5 seconds or more.
Route guide start sound appearsRoute guide start sound indicates 6
There is no sound 7
There is no soundTwo times of beep sound from NAVI switch * 8
There is no sound 9
NAVIGATION SYSTEM
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Self–diagnosis codes
CONFIRMATION/ADJUSTMENT ModeEKS00F34
OPERATION PROCEDURE
1. Start the engine.
2. Push and hold “MAP” and “DAY/NIGHT” switches simulta-
neously for 5 seconds or more.
Push the “BACK” switch and the initial system screen will be
shown.
3. The initial trouble diagnosis screen will be shown, and items
“Self-Diagnosis” and “Confirmation / Adjustment” will become
selective.
Diagnosis
No.Possible causeReference
page
1 NAVI control unit malfunction–
2 NAVI control unit judged no map DVD-ROM is inserted. –
3When “DVD-ROM error. Please check disc.” is shown.
1. Eject map DVD-ROM and check if it is compatible with the system.
2. Check ejected DVD-ROM for dirt, damage, and warpage.
3. If no error is found, insert a known good map DVD-ROM of the same type and perform self-diagnosis
again. If same result is shown, the NAVI control unit is malfunctioning. If result is normal, the map DVD-
ROM is malfunctioning.–
4If “Error found in DVD-ROM or DVD-ROM driver in control unit. Please perform diagnosis in accordance
with service manual” is shown, carry out same inspection as diagnosis No. 3.–
5GPS antenna system
1. Visually check for a broken wire in the GPS antenna coaxial cable.
2. Disconnect the GPS antenna connector and check that approximately 5V is supplied from NAVI control
unit. If not, the NAVI control unit is inoperative. If the voltage is supplied, replace the GPS antenna and
perform self-diagnosis again. If the same result is shown, the NAVI control unit is inoperative.–
6Display power supply and ground circuit.
Communication line between display and NAVI switch. Refer to
AV- 8 6
7NAVI switch power supply and ground circit.
Communication line between NAVI switch and transfer unit.Refer to
AV- 8 6
8NAVI control unit power supply and ground circuit.
Communication line between NAVI control unit and transfer unit.Refer to
AV- 8 7
9Transfer unit power supply and ground circuit.
Communication line between transfer unit and display.Refer to
AV- 8 8
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NAVIGATION SYSTEM
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GPS ROM
malfunction
GPS RAM
malfunctionContents of ROM (or RAM) in GPS substrate are malfunctioning.
Location detection accuracy of the navigation
system will deteriorate, depending on the mal-
functioning area in the memory, because GPS
cannot make correct positioning.
(Location correction using GPS is not per-
formed.)
Perform self-diagnosis.
When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS RTC
malfunctionClock IC in GPS substrate is malfunctioning.
Correct time may not be displayed.
After the power is turned on, the system
always takes some time until GPS positioning
becomes possible. (The GPS receiver starts
positioning without re-collecting the whole sat-
ellite information when it judged the data
stored in the receiver is correct.)
Correct time of error occurrence may not be
stored in the ″History of Errors″.
Perform self-diagnosis.
When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio inter-
ference.
GPS antenna
disconnectedMalfunctioning connection between GPS substrate in NAVI control
unit and GPS antenna.
Navigation location detection performance
has deteriorated.
(Location correction using GPS is not per-
formed.)
GPS receiving status remains gray.
Perform self-diagnosis.
When connection between NAVI control unit and GPS antenna
is judged normal by self-diagnosis, the symptom may be inter-
mittent, caused by impact or vibration.
Low voltage
of GPSThe power voltage supplied to the GPS circuit board has
decreased.
Navigation location detection performance
has deteriorated.
(Location correction using GPS is not per-
formed.)
GPS receiving status remains gray.
Perform self-diagnosis.
When connection between NAVI control unit and GPS antenna
is judged normal by self-diagnosis, the symptom may be inter-
mittent, caused by impact or vibration.
DVD-ROM
Malfunction
DVD-ROM
Read error
DVD-ROM
Response
ErrorMalfunctioning NAVI control unit -
Dedicated map DVD-ROM is in the system, but the data cannot be
read.
The map of a particular location cannot be dis-
played.
Specific guidance information cannot be dis-
played.
Map display is slow.
Guidance information display is slow.
System has been affected by vibration.
Is map DVD-ROM damaged, warped, or dirty?
–If damaged or warped, the map DVD-ROM is malfunctioning.
–If dirty, wipe the DVD-ROM clean with a soft cloth.
Perform self-diagnosis.
When NAVI control unit is judged normal by self-diagnosis, the
symptom is judged intermittent, caused by vibration. Error itemPossible causes
Example of symptom
Action/symptom