Mazda 6. Manual — part 330
T–80
WARNING AND INDICATOR SYSTEM
Diagnostic procedure
DTC 13
Operation signal to tachometer
INSPECTION
INDICATION
SITUATION
ACTION
Wait for 2 seconds after selecting DTC 13.
Tachometer needle moves
full scale then returns to
3000 rpm.
Tachometer is okay.
Other than stated above.
Replace instrument
cluster.
—
DTC 14
Operation signal to buzzer
INSPECTION
INDICATION
SITUATION
ACTION
Wait for 2 seconds after selecting DTC 14.
Buzzer continuously
sounds.
Buzzer is okay.
Buzzer does not
continuously sound.
Replace instrument
cluster.
DTC 16
Operation signal to fuel-level warning light
INSPECTION
INDICATION
SITUATION
ACTION
Wait for 2 seconds after selecting DTC 16.
Fuel-level warning light
turns on and off three
times.
Fuel-level warning light is
okay.
Other than stated above.
Replace instrument
cluster.
DTC 18
Ignition key illumination on/off signal
INSPECTION
INDICATION
SITUATION
ACTION
Wait for 2 seconds after selecting DTC 18.
Ignition key illumination
turns on and off three
times.
Ignition key illumination is
okay.
Other than stated above.
Measure voltage at
instrument cluster terminal
2C.
Is voltage B+?
• If as specified, replace
instrument cluster.
• If not as specified,
inspect following parts.
— Ignition key
illumination
— Wiring harness
(Battery—ignition
key illumination—
instrument cluster)
WARNING AND INDICATOR SYSTEM
T–81
T
Diagnostic procedure
DTC 22
Fuel level signal
STEP
INSPECTION
INDICATION
ACTION
1
Select DTC 22 with fuel gauge
sender unit connector disconnected.
Go to next step.
Other than stated
above.
Replace instrument cluster.
2
Connect between instrument cluster
terminals 2D and 2M.
Go to next step.
Other than stated
above.
Replace instrument cluster.
3
Using SST (Fuel and thermometer
checker) or resistor, input 20 ohms
to between instrument cluster
terminals 2D and 2M.
Go to next step.
Other than stated
above.
Replace instrument cluster.
4
Using SST (Fuel and thermometer
checker) or resistor, input 60 ohms
to between instrument cluster
terminals 2D and 2M.
Go to next step.
Other than stated
above.
Replace instrument cluster.
5
Using SST (Fuel and thermometer
checker) or resistor, input 100 ohms
to between instrument cluster
terminals 2D and 2M.
Inspect fuel gauge sender unit.
Other than stated
above.
Replace instrument cluster.
T–82
WARNING AND INDICATOR SYSTEM
Diagnostic procedure
DTC 23
Operation signal to fuel gauge
INSPECTION
INDICATION
SITUATION
ACTION
Wait for 2 seconds after selecting DTC 23.
Fuel gauge indicates in
following order for every 2
seconds.
• F→1/2→E→F (fixed)
Fuel gauge is okay.
Other than stated above.
Replace instrument
cluster.
Replace instrument cluster.
DTC 25
Operation signal to water temperature gauge
INSPECTION
INDICATION
SITUATION
ACTION
Wait for 2 seconds after selecting DTC 25.
Water temperature gauge
indicates in following order
for every 2 seconds.
• H→Center→C→H
(fixed)
Water temperature gauge
is okay.
Other than stated above.
Replace instrument
cluster.
Replace instrument cluster.
DTC 26
LCD indication
INSPECTION
INDICATION
SITUATION
ACTION
Select DTC 26.
Indication is normal.
LCD is okay.
Other than stated above.
Replace instrument
cluster.
DTC 31
Key reminder on/off signal
STEP
INSPECTION
INDICATION
ACTION
1
Remove key from steering lock and
then insert key into steering lock
after selecting DTC 31. (Key
reminder switch on.)
Go to next step.
Measure voltage at instrument cluster terminal 2B.
Is voltage B+?
• If as specified, replace instrument cluster.
• If not as specified, replace following parts.
— Key reminder switch
— Wiring harness (Battery—key reminder switch—
instrument cluster)
WARNING AND INDICATOR SYSTEM
T–83
T
End Of Sie
PID/DATA MONITOR AND RECORD PROCEDURE
A6E811855430W07
1. Connect SST (WDS or equivalent) to the vehicle
DLC-2 16-pin connector.
2. Access and monitor PIDs using SST (WDS or
equivalent).
Monitor Item Table
• The PID/DATA monitoring items for the instrument cluster is as shown in the table below.
—: Not applicable
End Of Sie
FUEL GAUGE SENDER UNIT INSPECTION
A6E811860960W01
1. Move the float to the topmost and bottommost
positions, and verify that the resistance between
terminals A and B of the unit and the position of
the float are as indicated in the figure.
• If they are not as indicated, replace the fuel
gauge sender unit.
End Of Sie
2
Remove key from steering lock (Key
reminder switch off.)
Measure voltage at instrument cluster terminal 2B.
Is voltage 0 V?
• If as specified, replace instrument cluster.
• If not as specified, inspect following parts.
— Key reminder switch
— Wiring harness (Key reminder switch—
instrument cluster)
Input signal to instrument cluster is okay.
STEP
INSPECTION
INDICATION
ACTION
DLC-2
A6E3970W002
PID item
Definition
Unit/Condition
Terminal
CCNT_HE
Continuous codes
Number of continuous codes
—
ECT_GAUGE
Temperature gauge
°C
°F
2W, 2X
FUEL
Fuel flow
l/min
2M
ODOMETR
Total distance
km
mile
2W, 2X
SPEEDSG
Speedometer
km/h
mile/h
RPM
Tachometer
rpm
A6E8118W002
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