Mazda CX 7. Manual - part 341

 

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Mazda CX 7. Manual - part 341

 

 

ON-BOARD DIAGNOSTIC [INSTRUMENT CLUSTER]

09-02E–5

09-02E

2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

DTC B1342[INSTRUMENT CLUSTER]

id0902e8840400

Diagnostic procedure

End Of Sie

DTC B2477[INSTRUMENT CLUSTER]

id0902e8840500

Diagnostic procedure

End Of Sie

DTC B1342

• Instrument cluster malfunction

DETECTION 

CONDITION

• Malfunction in the instrument cluster internal circuit

POSSIBLE 

CAUSE

• Instrument cluster malfunction

STEP

INSPECTION

ACTION

1

INSPECT INSTRUMENT CLUSTER

• Clear the DTC from the memory.

• Turn the ignition switch to the LOCK position.

• Turn the ignition switch to the ON position.

• Is B1342 displayed?

Yes

Replace the instrument cluster.

No

DTC troubleshooting completed.

DTC B2477

• Configuration error

DETECTION 

CONDITION

• Configuration error

• Malfunction in the instrument cluster internal circuit

POSSIBLE 

CAUSE

• Instrument cluster malfunction

STEP

INSPECTION

ACTION

1

PERFORM INSTRUMENT CLUSTER 
CONFIGURATION

• Perform instrument cluster configuration.

• Is B2477 displayed?

Yes

Replace the instrument cluster.

No

Go to the next step.

2

VERIFY TROUBLESHOOTING OF DTC B2477 
COMPLETED

• Clear the DTC from the memory.

• Is B2477 displayed?

Yes

Go to the applicable DTC inspection.

No

DTC troubleshooting completed.

ON-BOARD DIAGNOSTIC [INSTRUMENT CLUSTER]

09-02E–6

2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

Revised 12/2006 (Ref. No. R215/06)

DTC U2064[INSTRUMENT CLUSTER]

id0902e8840600

Caution

• DTC U2064 is registered to the instrument cluster by a request from other modules and does not 

indicate a malfunction in the instrument cluster itself.

• DTC U2064 may not be cleared during engine starting even if DTC clearing is done using the M-

MDS. When clearing DTC U2064, execute with the ignition switch in the ON position (Engine off).

Diagnostic Procedure

1. Verify the freeze frame data.

(1) Connect the IDS (laptop PC) to the DLC-2.

Note

• Freeze frame data of the instrument cluster 

can be displayed by the IDS (laptop PC)

(2) After set up the IDS (laptop PC) (including the 

vehicle recognition), the following can be 
selected from the IDS (laptop PC) screen.

• Select the "Toolbox" tab.

• Select "Electrical".

• Select "IC Service Functions".

• Select "Freeze Frame Data".

2. Determine which unit is thought to be 

malfunctioning based on the freeze frame data.

Note

• If several warning light illumination requests are received, they will be recorded in one freeze frame data.

3. Inspect the malfunctioning part.

• Repair or replace if necessary.

4. Clear the DTC from the memory.
5. Turn the ignition switch to the LOCK position.
6. Turn the ignition switch to the ON position.
7. Verify that the DTC U2064 is displayed using the M-MDS.

• If DTC U2064 is displayed, go back to Step 1.

End Of Sie

DTC U2064

Warning light illumination request signal from other modules

DETECTION 

CONDITION

• Receive warning light illumination request signal

POSSIBLE 

CAUSE

• CAN-related module malfunction

DLC-2

acxuuw00002075

Freeze frame data

Warning light illumination request unit

PCM

TCM

DSC HU/

CM

Keyless 

control 

module

AWD 

control 

module

SAS 

control 

module

Illuminated 
warning light

Air bag system warning light

×

Generator warning light

×

MIL

×

Oil pressure warning light

DSC/TCS indicator light

ABS warning light

×

Brake system warning light

×

AT warning light

×

AWD warning light

×

Keyless warning light

×

Meter, gauge 
control status

Speedometer

Tachometer

Water temperature gauge

ON-BOARD DIAGNOSTIC [BCM]

09-02F–1

09-02F

09-02F ON-BOARD DIAGNOSTIC [BCM]

DTC INSPECTION[BCM]  . . . . . . . . . . . .  09-02F–1
DTC TABLE[BCM]  . . . . . . . . . . . . . . . . .  09-02F–2
DTC B1317[BCM] . . . . . . . . . . . . . . . . . .  09-02F–3
DTC B1318[BCM] . . . . . . . . . . . . . . . . . .  09-02F–4
DTC B1322[BCM] . . . . . . . . . . . . . . . . . .  09-02F–6
DTC B1330[BCM] . . . . . . . . . . . . . . . . . .  09-02F–7
DTC B1342[BCM] . . . . . . . . . . . . . . . . . .  09-02F–8
DTC B1502[BCM] . . . . . . . . . . . . . . . . . .  09-02F–9
DTC B1506[BCM] . . . . . . . . . . . . . . . . . .  09-02F–10
DTC B1614[BCM] . . . . . . . . . . . . . . . . . .  09-02F–11
DTC B1520[BCM] . . . . . . . . . . . . . . . . . .  09-02F–12
DTC B1566[BCM] . . . . . . . . . . . . . . . . . .  09-02F–14
DTC B1873[BCM] . . . . . . . . . . . . . . . . . .  09-02F–15

DTC B2175[BCM]. . . . . . . . . . . . . . . . . . . 09-02F–16
DTC B2218[BCM]. . . . . . . . . . . . . . . . . . . 09-02F–17
DTC B2574[BCM]. . . . . . . . . . . . . . . . . . . 09-02F–18
DTC B2721[BCM]. . . . . . . . . . . . . . . . . . . 09-02F–20
DTC B2982[BCM]. . . . . . . . . . . . . . . . . . . 09-02F–21
DTC C1189[BCM]. . . . . . . . . . . . . . . . . . . 09-02F–22
DTC C1284[BCM]. . . . . . . . . . . . . . . . . . . 09-02F–23
DTC C1295, C1307, C1441, C1442, 

C1443, C1444, C144A, 
C144C[BCM]  . . . . . . . . . . . . . . . . . . . . . 09-02F–24

DTC C1937[BCM]. . . . . . . . . . . . . . . . . . . 09-02F–26
BCM SELF-TEST[BCM] . . . . . . . . . . . . . . 09-02F–26

End of Toc

WM: POWER SUPPLY SYSTEM

DTC INSPECTION[BCM]

id0902f5839400

1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following 

items from the initialization screen of the M-MDS.
When using the IDS (notebook PC)

• Select the “Toolbox” tab.

• Select “Self Test”.

• Select “Module”.

• Select “GEM”.

When using the PDS (pocket PC)

• Select “Module Tests”.

• Select “GEM”.

• Select “Self Test”.

3. Verify the DTC according to the directions on the 

screen.

• If any DTCs are displayed, perform troubleshooting according to the corresponding DTC inspection.

4. After completion of repairs, clear all DTCs stored in the BCM.

End Of Sie

DLC-2

acxuuw00001755

1871-1U-06B(09-02F).fm  1 ページ  2006年3月15日 水曜日 午前11時41分

ON-BOARD DIAGNOSTIC [BCM]

09-02F–2

DTC TABLE[BCM]

id0902f5839500

DTC table

DTC 

No.

Description

Detection condition

Page

B1317

Battery voltage high

Input voltage from the battery is excessively 
high

(See 09-02F-3 DTC 
B1317[BCM].)

B1318

Battery voltage low

Input voltage from the battery is excessively 
low

(See 09-02F-4 DTC 
B1318[BCM].)

B1322

Driver door ajar circuit short to 
ground

Short to GND in wiring harness between BCM 
and front door switch (driver-side)

(See 09-02F-6 DTC 
B1322[BCM].)

B1330

Passenger door ajar circuit short 
to ground

Short to GND in wiring harness between BCM 
and front door latch switch (passenger-side)

(See 09-02F-7 DTC 
B1330[BCM].)

B1342

ECU is faulted

BCM microcomputer malfunction

(See 09-02F-8 DTC 
B1342[BCM].)

B1502

Turn signal left circuit short to 
ground

Short to GND in wiring harness between BCM 
and turn switch (LH)

(See 09-02F-9 DTC 
B1502[BCM].)

B1506

Turn signal right circuit short to 
ground

Short to GND in wiring harness between BCM 
and turn switch (RH)

(See 09-02F-10 DTC 
B1506[BCM].)

B1520

Hood switch circuit open

Open circuit in wiring harness between BCM 
and hood latch switch

(See 09-02F-12 DTC 
B1520[BCM].)

B1566

Door ajar circuit short to ground

Short to GND in wiring harness between BCM 
and rear door switches

(See 09-02F-14 DTC 
B1566[BCM].)

B1614

Rear wiper interval switch input 
circuit short to ground

Short to GND in wiring harness between BCM 
and rear wiper and washer switch (INT)

(See 09-02F-11 DTC 
B1614[BCM].)

B1873

Hazard switch input circuit short to 
ground

Short to GND in wiring harness between BCM 
and hazard warning switch

(See 09-02F-15 DTC 
B1873[BCM].)

B2175

A/C request switch circuit short to 
ground

Short to GND in wiring harness between BCM 
and climate control unit (A/C ON request)

(See 09-02F-16 DTC 
B2175[BCM].)

B2218

Door lock switch circuit short to 
ground

Short to GND in wiring harness between BCM 
and door lock switches

(See 09-02F-17 DTC 
B2218[BCM].)

B2574

Driver door lock switch short to 
ground

Short to GND in wiring harness between BCM 
and driver-side door lock-link switch

(See 09-02F-18 DTC 
B2574[BCM].)

B2721

Liftgate ajar output short to ground

Short to GND in wiring harness between BCM 
and liftgate latch switch

(See 09-02F-20 DTC 
B2721[BCM].)

B2982

Park brake switch circuit open

Open circuit in wiring harness between BCM 
and parking brake switch

(See 09-02F-21 DTC 
B2982[BCM].)

C1189

Brake fluid level sensor input short 
to ground

Short to GND in wiring harness between BCM 
and brake fluid level sensor

(See 09-02F-22 DTC 
C1189[BCM].)

C1284

Oil pressure switch circuit failure

Open circuit in wiring harness between BCM 
and oil pressure switch

(See 09-02F-23 DTC 
C1284[BCM].)

C1295

Steering wheel angle sensor 
internal fault

BCM detects steering angle sensor internal 
abnormality (signal overflow)

(See 09-02F-24 DTC C1295, 
C1307, C1441, C1442, C1443, 
C1444, C144A, C144C[BCM].)

C1307

Steering wheel angle sensor 
encoder ring defective

BCM detects steering angle sensor internal 
abnormality (signal jump)

(See 09-02F-24 DTC C1295, 
C1307, C1441, C1442, C1443, 
C1444, C144A, C144C[BCM].)

C1441

Steering phase A circuit signal is 
not sensed

Open circuit in wiring harness between BCM 
and steering angle sensor

(See 09-02F-24 DTC C1295, 
C1307, C1441, C1442, C1443, 
C1444, C144A, C144C[BCM].)

C1442

Steering phase B circuit signal is 
not sensed

Open circuit in wiring harness between BCM 
and steering angle sensor

(See 09-02F-24 DTC C1295, 
C1307, C1441, C1442, C1443, 
C1444, C144A, C144C[BCM].)

C144C

Steering phase C circuit signal is 
not sensed

Open circuit in wiring harness between BCM 
and steering angle sensor

(See 09-02F-24 DTC C1295, 
C1307, C1441, C1442, C1443, 
C1444, C144A, C144C[BCM].)

C1443

Steering phase A circuit short to 
ground

Short to GND in wiring harness between BCM 
and steering angle sensor

(See 09-02F-24 DTC C1295, 
C1307, C1441, C1442, C1443, 
C1444, C144A, C144C[BCM].)

C1444

Steering phase B circuit short to 
ground

Short to GND in wiring harness between BCM 
and steering angle sensor

(See 09-02F-24 DTC C1295, 
C1307, C1441, C1442, C1443, 
C1444, C144A, C144C[BCM].)

1871-1U-06B(09-02F).fm  2 ページ  2006年3月15日 水曜日 午前11時41分

 

 

 

 

 

 

 

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