Mazda CX 7. Manual - part 52

 

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Mazda CX 7. Manual - part 52

 

 

ON-BOARD DIAGNOSTIC [L3 WITH TC]

01-02–163

01-02

End Of Sie

5

INSPECT ELECTRONIC THROTTLE CONTROL 
SYSTEM MALFUNCTION

• Inspect the following parts:

— APP sensor

 (See01-40-33 ACCELERATOR PEDAL 

POSITION (APP) SENSOR 
INSPECTION[L3 WITH TC].)

— TP sensor

 (See01-40-32 THROTTLE POSITION (TP) 

SENSOR INSPECTION[L3 WITH TC].)

• Are they normal?

Yes

Go to the next step.

No

Replace the necessary parts, then go to the next step.

6

VERIFY TROUBLESHOOTING OF DTC P0507 
COMPLETED

• Make sure to reconnect all disconnected 

connectors.

• Start the engine.

• Clear the DTC from the PCM memory using 

the M-MDS.

• Depress the brake pedal for 14 s or more.

• Is the PENDING CODE for this DTC present?

Yes

Replace the PCM, then go to the next step.

No

Go to the next step.

7

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]

01-02–164

DTC P0550[L3 WITH TC]

id010239808800

Diagnostic procedure

DTC P0550

PSP switch circuit malfunction

DETECTION 

CONDITION

• The PCM monitors the PSP switch signal, If the input voltage is low voltage (switch stays on) for 1 min. 

when the VSS is above 60.0 km/h {37.4 mph} and the ECT is above 60 

°C {140 °F}, the PCM determines 

that the PSP switch circuit has a malfunction.

Diagnostic support note

• This is a continuous monitor (CCM).

• MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in 

one drive cycle while the DTC for the same malfunction has been stored in the PCM.

• PENDING CODE is available 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

• PSP switch malfunction

• Connector or terminal malfunction

• Short to ground in the wiring harness between the PSP switch terminal and PCM terminal 2T

• Open circuit in the wiring harness between the PSP switch terminal and PCM terminal 2T

• 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 order, then go 
to the next step.

2

VERIFY RELATED REPAIR INFORMATION 
AVAILABILITY

• Check for related Service Bulletins and/or on-

line repair formation 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.

A

2T

PCM

PSP SWITCH

WIRING HARNESS SIDE CONNECTOR

PSP SWITCH

7

3

6

5

4

A

PCM

WIRING HARNESS SIDE CONNECTOR

2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M

2E

2A

2I

2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P

2H

2D

2L

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O

2G

2C

2K

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z

2V 2R 2N

2F

2B

2J

1871-1U-06B(01-02).fm  164 ページ  2006年3月15日 水曜日 午前10時32分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

01-02–165

01-02

End Of Sie

3

INSPECT PSP CONNECTOR FOR POOR 
CONNECTION

• Turn the ignition switch off.

• Disconnect the PSP connector.

• Inspect for poor connection (such as damaged/

pulled-out pins, corrosion).

• Is there any malfunction?

Yes

Repair or replace the terminal, then go to Step 8.

No

Go to the next step.

4

INSPECT PSP SWITCH

• Perform the PSP switch inspection.

 (See01-40-22 POWER STEERING 
PRESSURE (PSP) SWITCH INSPECTION[L3 
WITH TC].)

• Is the PSP switch normal?

Yes

Go to the next step.

No

Replace the PSP switch, then go to Step 8.

5

INSPECT PSP SWITCH SIGNAL CIRCUIT FOR 
SHORT TO GROUND

• Disconnect the PCM connector.

• Inspect for continuity between the PSP switch 

terminal (harness-side) and body ground.

• Is there continuity?

Yes

Repair or replace the wiring harness for a short to ground, 
then go to Step 8.

No

Go to the next step.

6

INSPECT PCM CONNECTOR FOR POOR 
CONNECTION

• Turn ignition switch to OFF

• Disconnect the PCM connector.

• Inspect for poor connection (such as damaged/

pulled-out pins, corrosion).

• Is there any malfunction?

Yes

Repair the terminal, then go to Step 8.

No

Go to the next step.

7

INSPECT SIGNAL CIRCUIT MALFUNCTION 
FOR OPEN CIRCUIT

• Inspect for continuity between PSP terminal A 

(harness-side) and PCM terminal 2T (harness-
side).

• Is there continuity?

Yes

Repair or replace the wiring harness, then go to the next 
step.

No

Go to the next step.

8

VERIFY TROUBLESHOOTING OF DTC P0550 
COMPLETED

• Make sure to reconnect all disconnected 

connectors.

• Start the engine.

• Clear the DTC from the PCM memory using 

the M-MDS.

• Drive the vehicle above 60 km/h {37.3 mph} 

for1 min.

• Verify that the ECT PID is above 60 °C {140 

°F} using the M-MDS.

• Is the PENDING CODE for this DTC present?

Yes

Replace PCM, then go to the next step.
 (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH 
TC].)

No

Go to the next step.

9

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.

STEP

INSPECTION

ACTION

1871-1U-06B(01-02).fm  165 ページ  2006年3月15日 水曜日 午前10時32分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

01-02–166

DTC P0564[L3 WITH TC]

id010239808900

DTC P0564

Cruise control switch circuit malfunction

DETECTION 

CONDITION

• The PCM monitors the cruise control switch signal. If the PCM detects that any one of following switches 

(Main, CANCEL, SET/COAST, RESUME/ACCEL) remains on for 2 min, the PCM determines that the 
cruise control 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

• Cruise control switch malfunction

• Connector or terminal malfunction

• Short to power circuit in wiring harness from cruise control switch terminal 2and PCM terminal 1AQ

• Short to ground circuit in wiring harness from cruise control switch terminal 2and PCM terminal 1AQ

• PCM malfunction

PCM

CRUISE CONTROL SWITCH

1AQ

2

3

PCM

WIRING HARNESS-SIDE CONNECTOR

CRUISE CONTROL SWITCH

WIRING HARNESS-SIDE CONNECTOR

5

4

3

3

2

1

5

4

8

7

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

1871-1U-06B(01-02).fm  166 ページ  2006年3月15日 水曜日 午前10時32分

 

 

 

 

 

 

 

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