Mazda CX 7. Manual — part 53
ON-BOARD DIAGNOSTIC [L3 WITH TC]
01-02–167
01-02
Diagnostic procedure
End Of Sie
STEP
INSPECTION
ACTION
1
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Bulletins and/or on-
line repair information availability.
• Is any related repair information available?
Yes
Perform the repair or diagnosis according to the available
repair information.
• If the vehicle is not repaired, go to the next step.
No
Go to the next step.
2
INSPECT CRUISE CONTROL SWITCH
CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch off.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
Yes
Repair or the replace the terminal, then go to Step 6.
No
Go to the next step.
3
INSPECT CRUISE CONTROL SWITCH SIGNAL
CIRCUIT FOR SHORT TO GROUND
• Disconnect the cruise control switch and PCM
connectors.
• Inspect for continuity between cruise control
switch terminal 2 (wiring harness-side) and
body ground.
• Is there continuity?
Yes
Repair or replace for a short to ground, then go to Step 6.
No
Go to the next step.
4
INSPECT CRUISE CONTROL SWITCH SIGNAL
CIRCUIT FOR SHORT TO POWER
• Turn the ignition switch to the ON position
(Engine off).
• Inspect the voltage between cruise control
switch terminal 2 (wiring harness-side) and
body ground.
• Is the voltage below 1.0 V?
Yes
Go to the next step.
No
Repair or replace for a short to the power supply, then go to
Step 6.
5
INSPECT CRUISE CONTROL SWITCH
OPERATION
• Inspect the cruise control switch.
(See01-20-1 CRUISE CONTROL SWITCH
INSPECTION[L3 WITH TC].)
• Is the cruise control switch normal?
Yes
Go to the next step.
No
Replace the cruise control switch, then go to the next step.
6
VERIFY TROUBLESHOOTING OF P0564
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory using
the M-MDS.
• Drive the vehicle using cruise control for 2 min.
or more.
• Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
(See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
TC].)
No
Go to the next step.
7
VERIFY AFTER REPAIR PROCEDURE
• Perform the “AFTER REPAIR PROCEDURE”.
(See01-14-4 AFTER REPAIR
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See01-02-13 DTC TABLE[L3 WITH TC].)
No
Troubleshooting completed.
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ON-BOARD DIAGNOSTIC [L3 WITH TC]
01-02–168
DTC P0571[L3 WITH TC]
id010239809000
Diagnostic procedure
DTC P0571
Brake switch circuit problem
DETECTION
CONDITION
• The PCM monitors the change in the input voltage for brake switch No.1 and No.2. If the PCM detects that
both brake switches No.1 and No.2 remain on or off for 15 s, it determines that the brake switch circuit has
a malfunction.
Diagnostic support note
• This is a continuous monitor (Other).
• The MIL does not illuminate.
• FREEZE FRAME DATA is not available.
• DTCs are stored in PCM memory.
POSSIBLE
CAUSE
• Brake switch malfunction
• Open circuit between brake switch terminal A and PCM terminal 1AF
• Open circuit between brake switch terminal C and body ground
• Short to the power between brake switch terminal A and PCM terminal 1AF
• Short to the ground circuit between brake switch terminal A and PCM terminal 1AF
• PCM malfunction
STEP
INSPECTION
ACTION
1
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has the FREEZE FRAME DATA been
recorded?
Yes
Go to the next step.
No
Record FREEZE FRAME DATA on the repair, then go to the
next step.
2
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Bulletins and/or on-
line repair information availability.
• Is any related repair information available?
Yes
Perform the repair or diagnosis according to the available
repair information.
• If the vehicle is not repaired, go to the next step.
No
Go to the next step.
1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M
1E
1A
1I
1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X
1T
1P
1H
1D
1L
1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O
1G
1C
1K
1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z
1V
1R 1N
1F
1B
1J
PCM
BRAKE SWITCH
C
1AB
1AF
D
A
B
5
4
6
9
4
7
4
4
8
B
D
A
C
BRAKE SWITCH
WIRING HARNESS-SIDE CONNECTOR
PCM
WIRING HARNESS-SIDE CONNECTOR
BATTERY
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ON-BOARD DIAGNOSTIC [L3 WITH TC]
01-02–169
01-02
End Of Sie
WM: DTC P06XX
3
VERIFY RELATED PENDING CODE OR
STORED DTC
• Turn the ignition switch off then to the ON
position (Engine off).
• Verify the related PENDING CODE or stored
DTCs.
• Is the DTC P0703 also present?
Yes
Go to the applicable DTC inspection.
(See01-02-13 DTC TABLE[L3 WITH TC].)
No
Go to the next step.
4
INSPECT BRAKE SWITCH CONNECTOR FOR
POOR CONNECTION
• Turn the ignition switch off.
• Disconnect the brake switch connector.
• Inspect for poor connection (such as damaged,
pull-out pins, corrosion).
• Is there any malfunction?
Yes
Repair or replace the terminal, then go to Step 10.
No
Go to the next step.
5
INSPECT BRAKE SWITCH
• Inspect the brake switch.
• Is the brake switch normal?
Yes
Go to the next step.
No
Replace the brake switch, then go to Step 10.
6
INSPECT GROUND CIRCUIT OF BRAKE
SWITCH NO.2 FOR OPEN CIRCUIT
• Inspect for continuity between brake switch
terminal C (wiring harness-side) and body
ground.
• Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for an open circuit,
then go to Step 10.
7
INSPECT SIGNAL CIRCUIT OF BRAKE SWITCH
NO.2 FOR SHORT TO GROUND
• Inspect for continuity between brake switch
terminal A (wiring harness-side) and body
ground.
• Is there continuity?
Yes
Repair or replace the wiring harness for a short to ground
circuit, then go to Step 10.
No
Go to the next step.
8
INSPECT SIGNAL CIRCUIT OF BRAKE SWITCH
NO.2 FOR OPEN CIRCUIT
• Inspect for continuity between brake switch
terminal A (wiring harness-side) and
instrument cluster terminal 1AF (wiring
harness-side).
• Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for an open circuit,
then go to Step 10.
9
INSPECT SIGNAL CIRCUIT OF BRAKE SWITCH
NO.2 FOR SHORT TO POWER
• Turn the ignition switch to the ON position
(Engine off).
• Measure the voltage between brake switch
terminal D (wiring harness-side) and body
ground.
• Is the voltage B+?
Yes
Repair or replace the wiring harness for a short to power
supply, then go to the next step.
No
Go to the next step.
10
VERIFY TROUBLESHOOTING OF P0571
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory using
the M-MDS.
• Turn the ignition switch to the ON position
(Engine off).
• Depress and release the brake pedal more
than 5 times.
• Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
(See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
TC].)
No
Go to the next step.
11
VERIFY AFTER REPAIR PROCEDURE
• Perform the “AFTER REPAIR PROCEDURE”.
(See01-02-10 AFTER REPAIR
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See01-02-13 DTC TABLE[L3 WITH TC].)
No
Troubleshooting completed.
STEP
INSPECTION
ACTION
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ON-BOARD DIAGNOSTIC [L3 WITH TC]
01-02–170
DTC P0601[L3 WITH TC]
id010239809100
Diagnostic procedure
End Of Sie
DTC P0602[L3 WITH TC]
id010239809200
DTC P0601
Internal control module memory check sum error
DETECTION
CONDITION
• PCM internal memory check sum error.
Diagnostic support note
• This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
POSSIBLE
CAUSE
• PCM internal memory malfunction
STEP
INSPECTION
ACTION
1
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has the FREEZE FRAME DATA been
recorded?
Yes
Go to the next step.
No
Record FREEZE FRAME DATA on the repair order, then go
to the next step.
2
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Bulletins and/or on-
line repair information availability.
• Is any related repair information available?
Yes
Perform the repair or diagnosis according to the available
repair information.
• If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
VERIFY TROUBLESHOOTING OF P0601
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is same DTC present?
Yes
Replace the PCM, go to the next step.
(See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
TC].)
No
Go to the next step.
4
VERIFY AFTER REPAIR PROCEDURE
• Perform the “After Repair Procedure”.
(See01-02-10 AFTER REPAIR
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See01-02-13 DTC TABLE[L3 WITH TC].)
No
Troubleshooting completed.
DTC P0602
PCM programming error
DETECTION
CONDITION
• No configuration data in PCM
Note
• If the “PCM CONFIGURATION” is successful, the PCM stores DTC P0602 and illuminates the MIL
(System is normal). Clear DTC P0602 using the M-MDS after the “PCM CONFIGURATION”.
• MIL turns off after three drive cycles with no failure (DTCs remain in PCM).
Diagnostic support note
• This is a continuous monitor (CCM).
• MIL illuminates if the PCM detects the above malfunction condition during the first drive cycle.
• FREEZE FRAME DATA is available.
• DTCs are stored in PCM memory.
POSSIBLE
CAUSE
• Configuration has not been completed.
• PCM malfunction
1871-1U-06B(01-02).fm 170 ページ 2006年3月15日 水曜日 午前10時32分
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