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]
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Diagnostic procedure
End Of Sie
DTC B2477[INSTRUMENT CLUSTER]
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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]
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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
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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]
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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
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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]
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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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