Mazda 3 Service Manual: Instrument Cluster Inspection
Speedometer
Using a speedometer tester
CAUTION:
-
When only the front or the rear wheels are driven using a speedometer tester, the ABS or DSC may determine that the vehicle speed signal is in error and the engine cannot be stopped by the normal operation. If the engine cannot be stopped, perform an emergency engine stop operation..
1. Adjust the tire pressure to the specification.
2. Using a speedometer tester, verify that the tester reading is as indicated in the table below.
3. Verify that the speedometer reading is within the range indicated in the table.
-
If the speedometer does not move or the indication is not within the allowable range, inspect the PCM, ABS HU/CM (with ABS) or DSC HU/CM (with DSC), and related wiring harnesses.
-
If the PCM, ABS HU/CM (with ABS) or DSC HU/CM (with DSC), and related wiring harnesses are normal, replace the instrument cluster.
|
Speedometer tester indication (km/h) |
Allowable range (km/h) |
Speedometer tester indication (mph) |
Allowable range (mph) |
|
20 |
17—23 |
10 |
9—11 |
|
40 |
36—44 |
20 |
18—22 |
|
60 |
54—66 |
30 |
27—33 |
|
80 |
72—88 |
40 |
36—44 |
|
100 |
90—110 |
50 |
45—55 |
|
120 |
108—132 |
60 |
54—66 |
|
140 |
126—154 |
70 |
63—77 |
Using the M-MDS
1. Connect the M-MDS (IDS) to the DLC-2.
2. After the vehicle is identified, select the following items from the initialization screen of the IDS.
-
Select “DataLogger”.
-
Select “Modules”.
-
Select “IC”.
3. Verify that it is displayed according to the table using “SPDMTR”.
-
If the speedometer does not move or the indication is not within the allowable range, inspect the related wiring harnesses.
-
If the related wiring harnesses are normal, replace the instrument cluster.
|
M-MDS display |
Instrument cluster display |
|
60 km/h |
Speedometer gauge needle moves to approx. 60 km/h |
|
120 km/h |
Speedometer gauge needle moves to approx. 120 km/h |
|
Off |
Speedometer gauge needle moves to 0 km/h |
Tachometer
CAUTION:
-
If the engine speed exceeds the allowable range, the engine could be damaged. Therefore, when inspecting the tachometer, do not allow the engine speed to exceed the allowable range indication on the tachometer.
1. Connect the M-MDS (IDS) to the DLC-2.
2. After the vehicle is identified, select the following items from the initialization screen of the IDS.
-
Select “DataLogger”.
-
Select “Modules”.
-
Select “IC”.
3. Verify that it is displayed according to the table using “TACHOMTR”.
-
If the tachometer does not move or the indication is not within the allowable range, inspect the related wiring harnesses.
-
If the related wiring harnesses are normal, replace the instrument cluster.
|
M-MDS display |
Instrument cluster display |
|
3000 RPM |
Tachometer gauge needle moves to approx. 3,000 rpm |
|
6000 RPM |
Tachometer gauge needle moves to approx. 6,000 rpm |
|
Off |
Tachometer gauge needle moves to 0 rpm |
Fuel gauge
1. Connect the M-MDS (IDS) to the DLC-2.
2. After the vehicle is identified, select the following items from the initialization screen of the IDS.
-
Select “DataLogger”.
-
Select “Modules”.
-
Select “IC”.
3. Verify that it is displayed according to the table using “LCD_SEG”.
-
If any of the segments are not displayed, replace the instrument cluster.
Boost gauge
1. Connect the M-MDS (IDS) to the DLC-2.
2. After the vehicle is identified, select the following items from the initialization screen of the IDS.
-
Select “DataLogger”.
-
Select “Modules”.
-
Select “IC”.
3. Verify that it is displayed according to the table using “LCD_SEG”.
-
If any of the segments are not displayed, replace the instrument cluster.
Instrument Cluster Disassembly/Assembly
CAUTION:
Do not drop the instrument cluster or damage the printed board. This will
lead to a system malfunction.
1. Perform the instrument cluster configuration when replacing it..
...
Instrument Cluster Removal/Installation
CAUTION:
When replacing the instrument cluster, the configuration procedure must be
performed before removing the instrument cluster. Replacing the instrument cluster
without performing ...
Other materials:
Oil Control Valve (OCV) Removal/Installation [Mzr 2.3 Disi Turbo]
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the charge air cooler..
4. Remove the ignition coils..
5. Disconnect the ventilation hose from the cylinder head cover..
6. Remove the cylinder head cover..
7. Remove in the order indicated in the table.
...
Blower Motor Installation [Full Auto Air Conditioner]
1. Install the SST (49 B061 015A) to the blower motor.
2. Install the blower motor with the SST (49 B061 015A) installed, to
the A/C unit.
CAUTION:
To prevent damage to the sirocco fan, install the blower motor being careful
that the blower motor does not interfere with the ...
Rear Center Speaker Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Rear seat cushion.
b. Rear scuff plate.
c. Tire house trim.
d. C-pillar trim.
e. Rear package trim.
3. Remove the screw.
4. Disconnect the connector.
5. Remove the rear center speaker.
6. Install in ...