Mazda CX 7. Manual - part 62

 

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Mazda CX 7. Manual - part 62

 

 

ON-BOARD DIAGNOSTIC [L3 WITH TC]

01-02–203

01-02

End Of Sie

3

VERIFY RELATED PENDING CODE AND 
STORED DTCS

• Turn ignition switch to OFF, then ON (Engine 

off).

• Verify pending and/or stored DTCs using the 

M-MDS.

• Is the DTC P2100 also present?

Yes

Go to appropriate the DTC troubleshooting procedure, then 
go to Step 10.

No

Go to the next step.

4

INSPECT THROTTLE BODY CONNECTOR FOR 
POOR CONNECTION

• Turn the ignition switch to off.

• Disconnect the throttle body connector.

• Inspect for poor connection (such as damaged, 

pulled-put 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 POWER SUPPLY CIRCUIT OF 
THROTTLE ACTUATOR FOR OPEN CIRCUIT

• Turn ignition switch to the ON position (Engine 

off).

• Measure the voltage between throttle body 

terminal F (harness-side) and body ground.

• Is the voltage B+?

Yes

Go to the next step.

No

Repair or replace the wiring harness for an open circuit, 
then go to Step 10.

6

INSPECT POWER SUPPLY CIRCUIT OF 
THROTTLE ACTUATOR FOR SHORT TO 
GROUND

• Turn the ignition switch to off.

• Check continuity between throttle body 

terminal F (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.

7

INSPECT PCM CONNECTOR FOR POOR 
CONNECTION

• Turn the 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 or replace the terminal, then go to Step 10.

No

Go to the next step.

8

INSPECT CONTROL CIRCUIT OF THROTTLE 
ACTUATOR FOR OPEN CIRCUIT

• Turn the ignition switch to off.

• Check for continuity between throttle body 

terminal E (harness-side) and PCM terminal 
2B (harness-side).

• Is there continuity?

Yes

Repair or replace the wiring harness for an open circuit, 
then go to Step 10.

No

Go to the next step.

9

INSPECT THROTTLE ACTUATOR

• Inspect the throttle actuator.

 (See01-13-12 THROTTLE ACTUATOR 
INSPECTION[L3 WITH TC].)

• Is it normal?

Yes

Go to the next step.

No

Replace the throttle body, then go to the next step.

10

VERIFY TROUBLESHOOTING OF DTC P2102 
COMPLETED

• Make sure to reconnect all disconnected 

connectors.

• Turn ignition switch to the ON position (Engine 

off).

• Clear the DTC from the PCM memory using 

the M-MDS.

• Start engine and warm it up completely.

• 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

1871-1U-06B(01-02).fm  203 ページ  2006年3月15日 水曜日 午前10時32分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

01-02–204

DTC P2103[L3 WITH TC]

id010239811300

Diagnostic procedure

DTC P2103

Throttle actuator circuit high input

DETECTION 

CONDITION

• PCM monitors the throttle actuator circuit current. If the PCM detects that the throttle actuator circuit current 

is excessively high, the PCM determines that the electronic throttle actuator circuit has a malfunction.

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

• Short to the power supply between throttle body terminal E and PCM terminal 2B

• Throttle actuator malfunction

• 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 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.

THROTTLE ACTUATOR

(THROTTLE BODY)

PCM

F

E

2A

2B

E

F

4

3

PCM

WIRING HARNESS SIDE CONNECTOR

THROTTLE BODY

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  204 ページ  2006年3月15日 水曜日 午前10時32分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

01-02–205

01-02

End Of Sie

DTC P2107[L3 WITH TC]

id010239811400

Diagnostic procedure

3

INSPECT CONTROL CIRCUIT OF THROTTLE 
ACTUATOR FOR SHORT TO POWER SUPPLY

• Turn the ignition switch to off.

• Disconnect the throttle body and PCM 

connectors.

• Turn ignition switch to the ON position (Engine 

off).

• Measure the voltage between throttle body 

terminal E (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 Step 5.

No

Go to the next step.

4

INSPECT THROTTLE ACTUATOR

• Inspect the throttle actuator.

 (See01-13-12 THROTTLE ACTUATOR 
INSPECTION[L3 WITH TC].)

• Is it normal?

Yes

Go to the next step.

No

Replace the throttle body, then go to the next step.

5

VERIFY TROUBLESHOOTING OF DTC P2103 
COMPLETED

• Make sure to reconnect all disconnected 

connectors.

• Turn ignition switch to the ON position (Engine 

off).

• Clear the DTC from the PCM memory using 

the M-MDS.

• Start the engine and warm it up completely.

• 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.

6

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

DTC P2107

Throttle actuator control module processor problem

DETECTION 

CONDITION

• Throttle actuator control module internal processor error

Diagnostic support note

• This is a continuous monitor (CCM).

• The MIL illuminates if the PCM detects the above malfunction condition in the first drive cycle.

• FREEZE FRAME DATA is available.

• DTCs are stored in the PCM memory.

POSSIBLE 

CAUSE

• Throttle actuator control module internal processor 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 the FREEZE FRAME DATA on the repair order, 
then go to the next step.

2

VERIFY RELATED REPAIR INFORMATION 
AVAILABILITY

• Verify 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 P2107 
COMPLETED

• Make sure to reconnect all disconnected 

connectors.

• Clear the DTC from the PCM memory using 

the M-MDS.

• Start the engine.

• 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.

1871-1U-06B(01-02).fm  205 ページ  2006年3月15日 水曜日 午前10時32分

ON-BOARD DIAGNOSTIC [L3 WITH TC]

01-02–206

End Of Sie

DTC P2108[L3 WITH TC]

id010239811500

Diagnostic procedure

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

DTC troubleshooting completed.

STEP

INSPECTION

ACTION

DTC P2108

Throttle actuator control module performance problem

DETECTION 

CONDITION

• If the PCM detects either of the following conditions, the PCM determines that throttle actuator control 

system has a malfunction.
— TP sensor power supply voltage below 4.4 V

— TP sensor No.1 output voltage below 0.20 V or above 4.85 V (DTC P0122 or P0123)

— TP sensor No.2 output voltage below 0.20 V or above 4.85 V (DTC P0222 or P0223)

— PCM internal circuit for TP sensor No.1 input circuit malfunction.

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

• TP sensor No.1 malfunction

• TP sensor No.2 malfunction

• Connector or terminal malfunction

• Open circuit between throttle body terminal A and PCM terminal 2AK

• Short to ground between throttle body terminal A and PCM terminal 2AK

• Open circuit between throttle body terminal B and PCM terminal 2AO

• Open circuit between throttle body terminal D and PCM terminal 2AP

• Short to the power supply between throttle body terminal A and PCM terminal 2AK

• Short to the power supply between throttle body terminal C and PCM terminal 2AL

• 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 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 RELATED PENDING CODE AND 
STORED DTCS

• Turn ignition switch to OFF, then ON (Engine 

off).

• Verify pending and/or stored DTCs using the 

M-MDS.

• Is the DTC P0122, P0123, P0222 or P0223 

also present?

Yes

Go to appropriate DTC troubleshooting procedure, then go 
to Step 7.

No

Go to the next step.

4

VERIFY INTERMITTENT MALFUNCTION AT TP 
SENSOR NO.1 CIRCUIT

• Perform the INTERMITTENT 

TROUBLESHOOTING procedure to TP sensor 
No.1 related harnesses and connectors.
 (See01-03-76 INTERMITTENT CONCERN 
TROUBLESHOOTING[L3 WITH TC].)

• Is there any malfunction?

Yes

Repair or replace malfunctioning part, according to 
inspection result, the go to Step 7.

No

Go to the next step.

1871-1U-06B(01-02).fm  206 ページ  2006年3月15日 水曜日 午前10時32分

 

 

 

 

 

 

 

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