
Downloaded from www.Manualslib.com manuals search engine 9C-5 Instrumentation / Driver Info. / Horn: 
Terminal arrangement of coupler viewed from terminal side
NOTE
Molded numbers (1) have no relation to the terminal numbers.
 
TerminalCircuitTerminal Circuit
G28-1 To turn signal and hazard warning relay (turn  R)  G28-17
—
G28-2 —G28-18 —
G28-3 —G28-19 —
G28-4 —G28-20 —
G28-5 To SDM (air bag warning light control signal) G28-21 —
G28-6 —G28-22 To lighting switch (high beam)
G28-7 CAN communication line (Active High signal)  G28-23 —
G28-8 CAN communication line (Active High signal) G28-24 —
G28-9 CAN communication line (Active Low signal)  G 28-25 To P/S control module (EPS warning light 
control signal)
G28-10 CAN communication line (Active Low signal) G28-26 To turn signal and hazard warning relay (turn  L) 
G28-11 —G28-27 —
G28-12 —G28-28 —
G28-13 —G28-29 Fuel level sensor ground
G28-14 —G28-30 To fuel level sensor
G28-15 —G28-31 To METER fuse
G28-16 GND G28-32 To RADIO fuse
G28-1 G28-16
G28-32
G28-17
1 1I4RS0A930003-02  

Downloaded from www.Manualslib.com manuals search engine Instrumentation / Driver Info. / Horn:  9C-6
Component Location
Audio System Component LocationS7RS0B9303001
NOTE
Below figure shows left-hand steering vehicle. For  right-hand steering vehicle, parts with (*) are 
installed at the opposite side.
 
Diagnostic Information and Procedures
Speedometer and VSS Symptom DiagnosisS7RS0B9304001
Tachometer Symptom DiagnosisS7RS0B9304002
6
5
(a)
7
1
2
2
3
3
*4
I6RS0C930003-01
1. Radio assembly
3. Rear speaker5. Antenna 7. GPS antenna (if equipped)
2. Front speaker 4. Antenna feeder6. Antenna base : 5 N⋅m (0.5 kgf-m, 4.0 lb-ft)
Condition Possible cause Correction / Reference Item
Speedometer shows no 
operation or incorrect 
operation Circuit fuse blown
Replace fuse and check for short circuit.
Front wheel speed sensor or sensor ring 
faulty (M/T model) Check front wheel speed sensor or sensor ring 
referring to “Front / Rear Wheel Speed Sensor 
On-Vehicle Inspection in
 Section 4E” or “Front 
Wheel Encoder On-Vehicle Inspection in 
Section 4E”.
Output shaft speed  sensor / VSS faulty 
(A/T model) Check output shaft 
speed sensor / VSS 
referring to “Output Shaft Speed Sensor 
Inspection in Section 5A”.
Wiring and/or grounding faulty Repair as necessary.
Combination meter faulty  Replace combination meter.
ECM faulty Replace after making sure that none of above 
parts is faulty.
ConditionPossible cause Correction / Reference Item
Tachometer shows no 
operation or incorrect 
operation Circuit fuse blown
Replace fuse and check for short circuit.
Wiring and/or grounding faulty Repair as necessary.
Combination meter faulty Replace combination meter.
ECM faulty Replace after making sure that none of above 
parts is faulty.  

Downloaded from www.Manualslib.com manuals search engine Instrumentation / Driver Info. / Horn:  9C-12
Clock Symptom Diagnosis (If Equipped)S7RS0B9304016
Audio System Symptom Diagnosis (If Equipped)S7RS0B9304017
Radio
NOTE
Electronic part / system with undiagnosed pr oblem may cause electromagnetic interference. 
Electromagnetic interference condition may have poor radio reception. To test for presence of 
electromagnetic interference in part / system, perform the following procedures.
1. Turn ignition switch to OFF.
2. Systematically disconnect the electronic part / system connector(s) one at a time.
3. Turn ignition switch to ON.
4. Check any improvement in radio reception.
 
Display of fuel 
consumption does not 
change at “– – – l / 100 km 
(km/l, MPG)” Vehicle is not running (instantaneous 
fuel consumption mode)
—
Fuel consumption was reset (average 
fuel consumption mo de, if equipped)Vehicle runs for a while.
Vehicle speed signal faulty Check ECM for DTC referring to “DTC Check 
in Section 1A”.
Wiring and/or grounding faulty Repair as necessary.
ECM faulty Check input and output signal of ECM referring 
to “Inspection of ECM and Its Circuits in 
Section 1A”.
Information display unit faulty Replace unit.
BCM faulty Replace after making sure that none of above 
parts is faulty.
Condition Possible cause Correction / Reference Item
Condition
Possible cause Correction / Reference Item
No displaying of clock Circuit fuse Blown Replace fuse and check for short circuit.
Wiring and/or grounding faulty Repair as necessary.
Clock unit faulty Replace unit.
ConditionPossible cause Correction / Reference Item
Poor radio reception Out of service area (Poor location) —
Antenna faulty Replace antenna.
Electrical part / system faulty Repair or replace electrical part / system 
referring to after-mentioned NOTE.
Wiring and/or grounding faulty Repair as necessary.
Radio assembly faulty Replace radio assembly.
Radio does not operate 
and speaker does not 
sound Circuit fuse(s) blown
Replace fuse(s) and check for short circuit.
Wiring and/or grounding faulty Repair as necessary.
Radio assembly faulty Replace radio assembly.
Radio does not operate, 
but speaker sound Wiring and/or grounding faulty
Repair as necessary.
Radio assembly faulty Replace radio assembly.
Radio is operative, but all 
speakers does not sound Wiring and/or grounding faulty
Repair as necessary.
Radio assembly faulty Replace radio assembly.
Individual speaker is 
noisy or inoperative Wiring and/or grounding faulty
Repair as necessary.
Speaker faulty Replace speaker.
Radio assembly faulty Replace radio assembly.
Sound quality is poor Out of service area (Poor location) —
Speaker installed incorrectly Install correctly.
Wiring and/or grounding faulty Repair as necessary.
Speaker faulty Replace speaker.
Radio assembly faulty Replace radio assembly.  

Downloaded from www.Manualslib.com manuals search engine 9C-13 Instrumentation / Driver Info. / Horn: 
CD Player
Auto Volume Control System
Remote Audio Control Switch Symptom Diagnosis (If Equipped)S7RS0B9304018
ConditionPossible cause Correction / Reference Item
CD-ROM does not insert Another CD-ROM already inserted Eject CD-ROM.
Circuit fuse blown Replace fuse and check for short circuit.
Wiring and/or grounding faulty Repair as necessary.
Extraneous material come to be mixed 
CD player Clear extraneous material from CD player or 
replace radio assembly.
Radio assembly faulty Replace radio assembly.
CD-ROM does not eject Circuit fuse blown Replace fuse and check for short circuit.
Wiring and/or grounding faulty Repair as necessary.
Extraneous material come to be mixed 
in CD player Clear extraneous material from CD player or 
replace radio assembly.
Radio assembly faulty Replace radio assembly.
CD player does not load 
CD-ROM CD-ROM faulty
—
CD-ROM inserted wit h incorrect side upInsert correctly.
Temperature in cabin is too hot —
Water droplets form on internal lens Dry about 1 hour with power on.
Radio assembly faulty Replace radio assembly.
Sound skips or is noisy CD-ROM faulty —
Driving vibration —
Water droplets form on internal lens Dry about 1 hour with power on.
Radio assembly installed incorrectly Install correctly.
Radio assembly faulty Replace radio assembly.
CD player is operative, 
but all speakers does not 
sound Wiring and/or grounding faulty
Repair as necessary.
Radio assembly faulty Replace radio assembly.
Individual speaker is 
noisy or inoperative Wiring and/or grounding faulty
Repair as necessary.
Speaker faulty Replace speaker.
Radio assembly faulty Replace radio assembly.
Sound quality or volume 
is poor CD-ROM faulty
—
Wiring and/or grounding faulty Repair as necessary.
Speaker installed incorrectly Install correctly.
Speaker faulty Replace speaker.
ConditionPossible cause Correction / Reference Item
Sound volume does not 
vary according to 
changes of vehicle speed Auto volume control system is “OFF” 
mode
Select auto volume control.
Vehicle speed signal faulty Check vehicle speed signal referring to 
“Vehicle Speed Signal Inspection (For Audio 
Unit) (If Equipped)”.
Wiring and/or grounding faulty Repair as necessary.
ECM faulty Check input and output signal of ECM referring 
to “Inspection of ECM and Its Circuits in 
Section 1A”
Radio assembly faulty Replace radio assembly.
ConditionPossible cause Correction / Reference Item
Audio system is 
operative, but remote 
control switch does not 
control audio system Remote audio control switch faulty
Check remote audio control switch referring to 
“Remote Audio Control Switch Inspection (If 
Equipped)”.
Contact coil faulty Replace contact coil.
Wiring and/or grounding faulty Repair as necessary.
Radio assembly faulty Replace radio assembly.  

Downloaded from www.Manualslib.com manuals search engine Immobilizer Control System:  10C-2
• Do not leave ignition key in a place where 
temperature is high. High temperature may cause 
damage to the transponder built in the ignition key. • Do not turn ignition switch to ON position by bringing 
radio antenna close to coil antenna. Or, the 
immobilizer control syst em may detect some 
abnormal condition and prevent the engine from 
starting.
General Description
Immobilizer Control System IntroductionS7RS0BA301001
The immobilizer control system  is an anti-theft device that immobilizes the vehicle. It  stops the engine from working 
and prevents the vehicle from being stolen. It  mainly consists of the following components.
• Engine Control Module (ECM)
• Immobilizer control module (ICM) with the  built-in coil antenna
• Ignition key with the built-in transponder
A code called the transponder code is memorized in the tran sponder. And, the code is registered with ECM. Basically, 
when the ignition switch is turned ON, ECM reads the code by  the coil antenna. Then, if the code in transponder in the 
ignition key does not match with the one  registered with ECM, ECM stops the operati on of the fuel injection so as not 
to start up the engine  and turns the immobilizer indi cator lamp ON and OFF using CA N communication lines. In the 
case of the vehicle equipped with the keyless start system , in addition to the above operation, ECM makes the 
immobilizer indicator lamp ON and OFF when it detects a trouble related to ID code verification of the keyless start 
system.
I3RH0AA30003-01
I3RH0AA30004-01  

Downloaded from www.Manualslib.com manuals search engine 10E-4 Keyless Start System: 
Door Lock Function of Keyless Start SystemS7RS0BA501004
When the request switch (1) incorporated in the outside handle of the driver side door, front passenger side door or 
rear end door is pushed, the keyless start control modul e (2) activates the center antenna (3) and luggage room 
antenna (4) to send out the radio wave in the vehicle compartm ent to check if the remote controller (5) is in the vehicle 
compartment or not. When the keyless start control module  receives no signal from the remote controller (i.e., the 
remote controller does not exist in the vehicle compartment) , it activates the antenna (6) of the door of which the 
request switch has been pushed to send the request signal out of the compartment.
If the remote controller exists within the door lock operati on area, it receives the request signal sent from the above 
said antenna, sends the ID code of the remote controller and  the request signal to the keyless start control module and 
at the same time, it makes the operatio n indicator lamp (7) of the remote controller light up. Lighting of the operation 
indicator lamp indicates that the remote controller sent the ID code and the request signal. 
The keyless start control module compares the ID code sent  from the remote controller with the ID code registered in 
the keyless start control module. If both ID codes match, the keyless start control module outputs the lock or unlock 
request signal (depending on the door lock switch (8) stat e then) to BCM (9). When BCM receives such signal through 
CAN communication from the keyless start control module, it  activates the door lock actuator to lock or unlock doors.
When the keyless start control module receiv es a signal from the remote controller (i.e., the remote controller exists in 
the vehicle compartment), the function of the keyless start system to prevent the remote controller from being closed in 
the vehicle works and the keyless start control module sends  a request signal to unlock doors to BCM. In this way, 
doors are kept unlocked.
Also, when the driver or passenger has left the vehicl e with the remote controller left behind in the vehicle 
compartment and locked doors by using the door lock knob or manual door lock switch, the function to prevent the 
remote controller from being closed in the vehicle works to unlock doors.
Furthermore, when ID codes of the remote controller and keyless start control module do not match or the remote 
controller exists outside of the operation area, doors are  not locked or unlocked even if the request switch of the 
outside handle is operated.
9 2
vi)
v)
vii) iv)
i) ii)
iii)
iii)iii)
ii)
iii)
iii)
iii)
3
5
8
6
1 4
7
[A]: i) ~ viii)
viii)
I4RS0BA50003-02
[A]: Signal flow  

Downloaded from www.Manualslib.com manuals search engine Keyless Start System:  10E-5
Operation Area of Remote ControllerS7RS0BA501005
Shown below are the operation areas of the remote controller for the keyless engine start function and door lock 
function of the keyless start system.
However, even when the remote controller is within the operation area as shown above, there are cases where the 
keyless start system doesn’t work under certain conditi ons as described below. And when the keyless engine start 
function doesn’t work, the key indicator la mp in the combination meter may light up.
• Doors cannot be locked or unlocked using the doo r lock function of keyless start system when:
– The remote controller which has been registered in the keyless start control module and another un-registered  one are both carried at the same time
– The remote controller is kept in some metallic co ntainer which disturb radio wave transmission/reception
– One of doors is open
– The ignition key is inserted in the ignition key cylinder
• The function of the keyless start system to prevent  the remote controller from being closed in the vehicle 
compartment doesn’t work when:
– The remote controller is in the door pocket or in the glove box
– The remote controller is kept in some metallic co ntainer which disturb radio wave transmission/reception
– The remote controller is placed close to outside of the vehicle compartment (such as on the instrument panel  beside the front window shield glass or in a corner of the luggage room)
• The ignition knob switch cannot be turned usin g the keyless engine start function fails to turn:
– The remote controller which has been registered in the keyless start control module and another un-registered  one are both carried at the same time
– The remote controller is kept in some metallic cont ainer which disturbs radio wave transmission/reception
– The ignition knob switch has been pushed for 5 seconds or longer
– The remote controller is placed close to outside of the vehicle compartment (such as on the instrument panel  beside the front window shield glass or in a corner of the luggage room)
[A] [B]
[C]
1
1
1
25
6
3
3 4
2
2
I4RS0BA50004-02
[A]: Door lock function of keyless start system 1. About 80 cm (31.5 in, 2.6 ft)4. Luggage room antenna
[B]: Function of keyless start system to prevent remote  controller from being closed in vehicle compartment 2. Each door antenna
5. Vehicle compartment including luggage room
[C]: Keyless engine start function 3. Center antenna6. Vehicle compartment excluding luggage room  

Downloaded from www.Manualslib.com manuals search engine 10E-8 Keyless Start System: 
Diagnostic Information and Procedures
Precautions in Diagnosing TroublesS7RS0BA504001
• The keyless start system executes data transmission/reception by means of th e radio wave. Therefore, 
proper operation may not be obtained if use of the 
door lock function and engine start function of the 
keyless start system is attempted near the place 
where strong radio wave is emitted (TV and radio 
broadcasting stations, etc.).
• Diagnostic information stored  in keyless start control 
module memory can be checked only by key indicator 
lamp.
• Be sure to use the trouble diagnosis procedure as  described in “Keyless Start  System Check”. Failure to 
follow it may result in incorrect diagnosis. (Some other 
DTC may be stored by mistake in the memory of 
keyless start control module during inspection.)
• Be sure to read “Precautions for Electrical Circuit  Service in Section 00” befo re inspection and observe 
what is written there.
• Communication of ECM, BCM, TCM (A/T model),  ABS control module, keyless start control module and 
combination meter is estab lished by CAN (Controller 
Area Network). (For detail of CAN communication for 
keyless start control module, refer to “CAN 
Communication System Description”). Therefore, 
handle CAN communication line with care referring to 
“Precaution for CAN Communication System in 
Section 00”. • Replacement of the keyless start control module
When keyless start control module is replaced with 
new one, make sure that r egister remote controller ID 
code to keyless start co ntrol module correctly 
according to “Registration Procedure for Remote 
Controller ID Code”.
• Keyless start control module substitution When the keyless start control module used in 
another vehicle was installed in the vehicle, register 
the ID code of the remote controller in the keyless 
start control module as well as the ignition key 
transponder code fo r the immobilizer control system in 
ECM. For the registration procedure of the ignition key 
transponder code, refer to “Registration of the Ignition 
Key in Section 10C”.
Self-Diagnosis FunctionS7RS0BA504002
The keyless start control module has self-diagnosis 
function to monitor the system components and circuits 
while the keyless start system is at work. When the 
keyless start control module detects an abnormality in 
the system, it saves the ar ea where such abnormality 
has occurred as a DTC in its memory. The DTC stored in 
memory of the keyless start control module is indicated 
by the key indicator lamp  in the combination meter 
flashing in a specific pattern. For DTC indication, refer to 
“DTC Check” and for the clearing procedure, to “DTC 
Clearance”.
Keyless Start System Diagnosis IntroductionS7RS0BA504003
To ensure that the trouble diagnosis is done accurately 
and smoothly, observe “Precautions in Diagnosing 
Troubles” and follow “Keyless Start System Check”.
Keyless Start System CheckS7RS0BA504004
Step Action YesNo
1 1) Record details of the problem. For your record, use of a  questionnaire form will facilit ate collecting information for 
proper analysis and diagnosis.
2) Check if the problem described in “Customer  Questionnaire (Example)” actually occurs in the vehicle. 
(This step should be performed with the customer if 
possible.)
Perform “Keyless Start System Operation Inspection” 
procedure to check if the symptom which has occurred is 
abnormal or not.
3) Check for DTC referring to “DTC Check”, and then  record DTC(s).
4) Clear DTC referring to “DTC Clearance” if any DTC  exists, and then recheck for DTC.
Is any DTC still detected? Go to Step 2.
Go to Step 3.
2 1) Check and repair referring to applicable “DTC Table”. Are check and repair complete? Go to Step 5.
Check and repair 
malfunction part(s), and 
go to Step 5.