Mazda CX 7. Manual — part 436

INSTRUMENTATION/DRIVER INFO.

09-22–13

09-22

1. Complete the “BEFORE REPAIR PROCEDURE”. (See 01-14-4 BEFORE REPAIR PROCEDURE[L3 WITH

TC].)

2. Remove the service hole cover.
3. Remove the rear seat cushion.

4. Disconnect the quick release connector

connected to the fuel pump unit.

5. Connect a long hose to the disconnected quick

release connector and drain the fuel into a
container used for collecting gasoline.

6. Start the fuel pump using the following procedure.

Using M-MDS

1. Connect the M-MDS to the DLC-2.
2. Using the simulation function “FP”, start the

fuel pump.

Without using M-MDS

1. Remove the fuel pump relay.

Caution

• Short the specified terminals because

shorting the wrong terminal of the main
fuse block may cause malfunctions.

2. Using a jumper wire, short fuel pump relay

terminals C and D in the main fuse block.

3. Connect the negative battery cable and

operate the fuel pump.

Caution

• The fuel pump could be damaged if it is

operated (fuel pump idling) while there is
no fuel in the fuel tank. Verify the amount
of fuel being discharged from the hose
and stop operation of the fuel pump
when essentially no fuel is being
discharged.

7. When essentially no fuel is being discharged, stop the fuel pump.

Using M-MDS

1. Using the simulation function “FP”, stop the fuel pump.

Without using M-MDS

1. Turn the ignition switch to LOCK position to stop the fuel pump.
2. Disconnect the jumper wire from the check connector.

8. Disconnect the negative battery cable.

SERVICE HOLE COVER

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HOSE

FRONT

QUICK RELEASE
CONNECTOR

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DLC-2

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A

E

C

D

MAIN FUSE BLOCK
(FUEL PUMP RELAY)

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INSTRUMENTATION/DRIVER INFO.

09-22–14

9. Remove in the order indicated in the table.

10. Install in the reverse order of removal.
11. Complete the “AFTER REPAIR PROCEDURE”.

(See 01-14-4 AFTER REPAIR PROCEDURE[L3
WITH TC].)

End Of Sie

FUEL GAUGE SENDER UNIT INSPECTION

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1. Move the float to the topmost and bottommost positions, and verify that the resistance between terminals A and

C (fuel gauge sender unit) or A and B (fuel gauge sender sub-unit) 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 or fuel gauge sender sub-unit.

End Of Sie

WM: OIL PRESSURE SWITCH

OIL PRESSURE SWITCH INSPECTION

id092200801200

1. Verify that the oil pressure warning light illuminates when the ignition switch is at the ON position.
2. Verify that the oil pressure warning light goes out when the engine is started.

• If the oil pressure warning light does not illuminate or remains illuminated, inspect the BCM and related

wiring harness.

— If the BCM and related wiring harness are normal, inspect the oil pressure. (See 01-11-2 OIL

PRESSURE INSPECTION[L3 WITH TC],)

• If the oil pressure is normal, replace the oil pressure switch.

End Of Sie

WM: HORN

HORN REMOVAL/INSTALLATION

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1. Disconnect the negative battery cable.
2. Slightly bend back the mudguard.
3. Remove in the order indicated in the table.

4. Install in the reverse order of removal.

End Of Sie

WM: INFORMATION DISPLAY

1

Screw A

2

Cover

3

Connector

4

Screw B

5

Fuel gauge sender sub-unit

1

2

3

5

4

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TOPMOST
POSITION

BOTTOMMOST
POSITION

TOPMOST
POSITION

BOTTOMMOST
POSITION

65.3

—

67.3 ohms

6.7

—8.7

ohms

ARM FULCRUM

ARM FULCRUM

58.8

—

60.8 ohms

6.6

—8.6

ohms

59.8—65.8 mm
{2.36—2.59 in}

130.8—136.8 mm
{5.18—5.38 in}

A

B

A

B

C

D

FUEL GAUGE SENDER UNIT

FUEL GAUGE SENDER SUB-UNIT (AWD)

101.6

—

107.6 mm

{4.000—4.236 in}

89.8

—

95.8 mm

{3.536—3.771 in}

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1

Connector

2

Bolt

3

Horn

1

2

3

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INSTRUMENTATION/DRIVER INFO.

09-22–15

09-22

INFORMATION DISPLAY REMOVAL/INSTALLATION

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1. Disconnect the negative battery cable.
2. Remove the following parts:

(1) Front scuff plate inner (See 09-17-19 FRONT SCUFF PLATE REMOVAL/INSTALLATION.)
(2) Front side trim (See 09-17-18 FRONT SIDE TRIM REMOVAL/INSTALLATION.)
(3) Console panel (See 09-17-15 CONSOLE PANEL REMOVAL/INSTALLATION.)
(4) Console (See 09-17-13 CONSOLE REMOVAL/INSTALLATION.)
(5) Hood release lever (See 09-14-25 HOOD LATCH AND RELEASE LEVER REMOVAL/INSTALLATION.)
(6) Lower panel (See 09-17-9 LOWER PANEL REMOVAL/INSTALLATION.)

3. Remove in the order indicated in the table.

.

4. Install in the reverse order of removal.

End Of Sie

INFORMATION DISPLAY INPUT/OUTPUT CHECK MODE

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Note

• In this mode, it is possible to verify the items in the following chart.

Check Code Table

Note

• The check codes are displayed in numerical order. (While performing the inspection, if you want to inspect

a check code with a number smaller than the code number you are currently inspecting, terminate the
check mode then repeat the inspection from the beginning.)

1

Screw

2

Connector

3

Information display

1

2

3

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Check code

Check item

Related items

01

Information display

CAN system

• DTC U2516: CAN system communication

error

02

• Audio unit

• Climate control unit

• Instrument cluster

CAN system

• DTCU0184: Communication error to audio

unit

• DTCU0166: Communication error to climate

control unit

• DTCU0181: Communication error to

instrument cluster

04

TNS relay

• TNS relay

• TNS signal wiring harness

— LCD

LCD

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INSTRUMENTATION/DRIVER INFO.

09-22–16

Check Code Inspection
Check code 01

Check code 01

CAN system

INSPECTION CONDITION

DISPLAY

ACTION

Select the check code 01.

CAN system of information display is normal.

CAN system communication error. (DTC U2516)
(See 09-02D-7 DTC TABLE[MULTIPLEX COMMUNICATION
SYSTEM])

1. Turn the ignition switch to the ON position.
2. Turn the TNS switch off to on 5 times within 5 s. ( is displayed on LCD clock display area.)
(Perform Step 1 to 2 within 5 s.)

Start

Is check code 01 displayed on LCD clock display area?

Perform the "Check Code Inspection".
Is there any malfunction?

Are there any check codes to inspect?

Turn the ignition switch to the LOCK position.

End

Yes

No

Yes

No

Yes

No

Repair or replace parts.

Perform the following procedure:

To clear the DTC (U2516 or other), turn the TNS switch off to on 10 times within 10 s
while all segments and dots are illuminated.

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