Mazda C930 V7 620 Troubleshooting Manual
GENUINE REMOTE ENGINE START (Part No.: C930 V7 620)
Troubleshooting Manual
If the following problem or error occurs with the aforementioned Genuine Remote Engine Start
(hereafter referred to as "RES"), use this manual to troubleshoot the problem or error.
• During RES installation, there is a problem with controller registration even after referring to the "GENUINE REMOTE
ENGINE START Registration Procedure Of the Controller."*
*Harness kit included
• During the RES installation, the controller was successfully registered, but then an error occurred during the operation check.
• After replacing or adding a remote control, there was a problem with remote control registration even after referring to the
"GENUINE REMOTE ENGINE START Registration Procedure Of the Remote control" (including the spare remote control).
• An error occurs during use, and an inquiry is made to an authorized Mazda dealer by the customer.
[Troubleshooting]
This troubleshooting manual lists a diagnostics guide which is categorized by the following errors or problems.
Troubleshoot the problem or error that occurred by referring to the items that correspond to each error or problem listed here.
*Clicking on the blue text link will display the corresponding page.
Problem Reference
Remote control related problems
• Remote control does not work (remote control display does not appear, or remote control buzzer does not sound)
• Remote control operating distance is short
Problems related to engine startup operations
• Engine does not start using the remote control
• Engine stops after starting it with the remote control
• The headlight or taillight turns on when the engine has been started with the remote control
• After starting the engine using the remote control, the wipers will not turn on even when the wiper switch is set
to the “AUTO” position and it begins to rain.
Problems related to engine stop operations
• Engine does not stop using remote control
Problems related to warm up time check
• Warm up time check does not work
• Warm up time remaining appeared on the LCD monitor of the remote control is different from its actual time.
Problems related to vehicle status check
• Vehicle status check does not work
• The letter of " " appeares on the LCD monitor of the remote control
• RUN mark䇭does not turn on when the engine has been started with the push start switch
• Even though the engine starts up normally using the "Engine start operation," the rear defrost mark displays
on the remote control.
• Even though the engine starts up normally using the "Engine start operation," the rear defrost mark displays
on the remote control.
• Even though the engine starts up using the "Engine start operation with rear defrost start up," the rear defrost mark
does not display on the remote control.
Problems related to setting warm up time
• Warm up time settings does not work
Problems related to rear defrost force operation
• The rear defrost does not turns on
• Even though the engine starts up normally using the "Engine start operation," the rear defrost is activated
• The dash light does not turn on when the rear defrost is turned on with the Remote Engine Start
Problems related to car find function
• Car find function on the remote control does not work
• Even though the car find function is executed while the turn signal lamp is flashing
(activated by the vehicle's turn signal switch), the hazards do not flash.
Problems related to controller registration
• Controller does not register
• Controller buzzer does not sound during registration
Problems related to remote control registration
• Remote control does not register
• Controller buzzer does not sound during registration
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
NCode
p.2
p.3
p.4
p.5
p.6
p.8
p.9
p.10
p.11
p.13
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Diagnostics Guide
A1
Remote control does not work
(Remote control display does not appear, or the
buzzer does not sound
When operating the remote control, another switch
was not accidentally pressed at the same time.
NO
Refer to the basic operation items in the "User's
instructions" to perform the remote control operation
correctly.
Did you press the remote control switch following
YES
the correct procedure, as noted in the "User's
instructions?"
YES
The remote control is working correctly
(Refer to ).
Remote control operating distance is short
After performing the remote control operation
check (Refer to ), there is no problem or
error with the remote control.
YES
Even after trying to operate the remote control from
a better location, or after moving closer (within
approximately 300ft of vehicle) to the vehicle when
operating the remote control, the vehicle does not
respond.
YES
The harness and controller of the remote engine
start are attached to the correct location where are
shown in the installation instructions.
NO
Refer to the basic operation items in the "User's
instructions" to perform the remote control operation
correctly.
NO
Refer to , and perform the procedure for battery
replacement or remote control replacement.
NO
When there is something between the remote control
and the vehicle, such as a building, if you move to a
better location (with no obstructions), the operating
distance becomes shorter.
NO
Attach the harness and controller to the correct location
in the vehicle where are shown in the installation
instructions.
B1
YES
The metal parts or other electronic control units
except Mazda genuine parts are not attached close
to the controller (especially antenna component of
it).
YES
The controller is faulty or defective. Replace the
controller.
If the metal parts or other electronic control units are
attached close to the controller of the remote engine
NO
start, the operating distance of the remote engine start
may be affected by them.
Do not attach those parts or units close to the
controller.
㪉
A
m
h
A2
Engine does not start using the remote control
Did you replace or add a remote control?
YES YES NO
Did you press the remote control switc
following the correct procedure, as noted in
the "User's instructions?"
YES
When performing the engine start operation
on the remote control, does the display
appear and the buzzer also sound?
NO
If a remote control was added or replaced, did you register all the
remote controls being used with the controller?
When a remote control is added or replaced, all the remote controls being used must be
registered. Register all the remote controls following the "GENUINE REMOTE ENGINE
START Registration Procedure Of the Remote control."*
*Spare remote control (Part No.: C930 V7 621) included
NO
Refer to the basic operation items in the "User's instructions" to
perform the remote control operation correctly.
NO
Check the remote control operation (Refer to ).
B1
The error display (Refer to ) does not
appear on the LCD monitor when the
remote control receives the answer back
signal.
Check the wiring (Refer to ).
YES
B3
YES
B2
Engine stops after starting it with the remote
control
Does the engine stop even when the war
up time (set on the remote control) has not
expired?
YES
Is there only one remote control registered
with the controller?
YES NO YES
The controller buzzer does not sound when
the engine is stopped.
NO
NO
NO
NO
B3
Refer to , and follow the troubleshooting procedure for the
error display that appears.
After the set warm up time expires, the engine stops automatically.
Another registered remote control (or a different remote control
was used apart from the one used to start the engine) was used to
stop the engine.
When another registered remote control (or a different remote
control was used apart from the one used to start the engine) is
used to stop the engine, the engine stops.
B5
Refer to , and follow the troubleshooting procedure for the
error report code that appears.
YES
After checking the wiring (Refer to ),
there is no problem with the wiring.
YES
Check the wiring (Refer to ).
B2
B2
The headlight or taillight turns on when the
engine has been started with the remote control
The light switch is in the "AUTO" position,
and the vehicle surroundings are dark, such
as at night.
YES
When the light switch is set to the "AUTO" position and the
engine is started using the remote control, the automatic light
function on the vehicle (at night, or when the surroundings are
dark) activates and turns on the headlights and / or taillights.
NO
Repair the problem area.
fter starting the engine using the remote control,
the wipers will not turn on even when the wiper
switch is set to the “AUTO” position and it begins
to rain.
NO
There may be a problem with the vehicle.
Inspect the vehicle. When starting the engine using the remote
control, the wipers will not turn on even
when the wiper switch is set to the “AUTO”
position and it begins to rain.
㪊
A
n
.
r
e
p
y.
n
pp
?
A3
Engine does not stop using remote control
fter performing a remote control operatio
check (Refer to ), there is no problem
or error with the remote control
When operating the remote control, anothe
switch was not accidentally pressed at the
same time.
When performing the engine stop operatio
on the remote control, does the display
a
ear and the buzzer also sound
The error display (Refer to ) does not
appear on the LCD monitor when the
remote control receives the answer back
signal.
Check the wiring (Refer to ).
YES
YES
YES
B
YES
B2
NO
Repair the problem area.
Refer to the basic operation items in th
NO
"User's instructions" to perform the remote
control o
NO
Check the remote control operation (Refer
to ).
NO
Refer to , and follow the
troubleshooting procedure for the error
display that appears.
eration correctl
B1
B3
㪋
e
p
y.
e
p
y.
r
y
h
"
k
pp
?
A
4
Warm up time check does not work
The warm up time check operation was
performed after starting the engine with the
Remote Engine Start.
When operating the remote control, anothe
switch was not accidentally pressed at the
same time.
Did
following the correct procedure, as noted in
the "User's instructions?
When performing the warm up time chec
on the remote control, does the display
a
ear and the buzzer also sound
The error display (Refer to ) does not
appear on the LCD monitor when the
remote control receives the answer back
signal.
Check the wiring (Refer to ).
YES
YES
ou press the remote control switc
YES
YES
YES
B2
B3
NO
If the engine is started using another
method (such as the vehicle's push start
switch) other than the Remote Engine Start,
the warm up time check cannot be used or
executed.
Refer to the basic operation items in th
NO
"User's instructions" to perform the remote
control o
Refer to the basic operation items in th
NO
"User's instructions" to perform the remote
control o
NO
Check the remote control operation (Refer
to ).
NO
Refer to , and follow the
troubleshooting procedure for the error
display that appears.
eration correctl
eration correctl
B1
B3
Warm up time remaining appeared on the LCD
monitor of the remote control is different from its
actual time.
The warm up time is displayed every 2
minutes, so the actual time may vary.
(The difference between the actual time
remaining and the displayed warm up time
shall be no more than approximately 2
minutes.)
㪌
A
5
Vehicle status check does not work
When operating the remote control, another
switch was not accidentally pressed at the
same time.
When performing the vehicle status check
on the remote control, does the display
appear and the buzzer also sound?
The error display (Refer to ) does not
appear on the LCD monitor when the
remote control receives the answer back
signal.
Check the wiring (Refer to ).
YES
YES
B3
YES
B2
The letter of " " appeares on the LCD monitor
of the remote control
Is the temperature sensor installed on the
Remote Engine Start harness?
YES
NO
Refer to the basic operation items in the
"User's instructions" to perform the remote
control operation correctly.
NO
Check the remote control operation (Refer
to ).
B1
NO
Refer to , and follow the
troubleshooting procedure for the error
display that appears.
NO
Install the temperature sensor onto the
harness.
B3
Check the wiring (Refer to ).
B2
RUN mark䇭does not turn on when the engine has
been started with the push start switch
Was the engine started using the Remote
Engine Start?
When performing the vehicle status check
on the remote control, does the display
appear and the buzzer also sound?
The error display (Refer to ) does not
appear on the LCD monitor when the
remote control receives the answer back
signal.
Check the wiring (Refer to ).
YES
YES
B3
YES
B2
NO
If the engine is started using another method (such as the
vehicle's push start switch) other than the Remote Engine Start,
the "RUN" mark will not display on the remote control.
NO
Check the remote control operation (Refer
to ).
B1
NO
Refer to , and follow the
troubleshooting procedure for the error
display that appears.
B3
㪍
A
5
(Continued from previous page)
Even though the engine starts up normally using
the "Engine start operation," the rear defrost mark
displays on the remote control.
Was the temperature inside the vehicle
cabin less than approximately 5°C when the
engine was started?
YES
Even when the engine is started up normally using the
"Engine start operation," if the temperature inside the vehicle
cabin is less than 5ºC, the rear defrost will be activated
automatically. If you perform a vehicle status check operation
while the rear defrost is turned on, the rear defrost mark will
be displayed on the remote control.
Even though the engine starts up using the "Engine
start operation with rear defrost start up," the rear
defrost mark does not display on the remote control.
After starting the engine, did you wait more
than 15 minutes before performing a vehicle
status check?
YES
The rear defrost will automatically stop after approximately 15
minutes from the engine startup. If you use the vehicle status
check operation after 15 minutes has elapsed, the rear defrost
mark will not display.
NO
Check the wiring (Refer to ).
NO
The remote control or the controller is faulty
or defective.
B2
When the engine starts up normally using the "Engine
start operation" and then the "Engine start operation
with rear defrost start up" is executed but the rear
defrost mark does not display on the remote control.
Once the engine is started up normally using the "Engine start
operation," the rear defrost cannot be forced on.
To turn on, first, stop the engine, and then execute the
"Engine start operation with rear defrost start up."
㪎
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