Mazda CX 7. Manual — part 148
![](/vehicles/rke/eetan/dot/mery.png)
CONTROL SYSTEM [L3 WITH TC]
01-40–33
01-40
Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)
Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— Throttle body terminal A and PCM terminal 2AK
— Throttle body terminal B and PCM terminal 2AO
— Throttle body terminal C and PCM terminal 2AL
— Throttle body terminal D and PCM terminal 2AP
Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— Throttle body terminal A and power supply
— Throttle body terminal A and body ground
— Throttle body terminal B and body ground
— Throttle body terminal C and power supply
— Throttle body terminal C and body ground
— Throttle body terminal D and power supply
End Of Sie
WM: ACCELERATOR PEDAL POSITION SENSOR
ACCELERATOR PEDAL POSITION (APP) SENSOR INSPECTION[L3 WITH TC]
id014039803200
Note
• Before performing the following inspection, make sure to follow the procedure as indicated in the
troubleshooting flowchart. (See 00-00-3 HOW TO USE THIS MANUAL.)
Voltage Inspection
1. Turn the ignition switch to the ON position (Engine off).
2. Verify that the PCM terminal 1Y and 1AC change smoothly while throttle valve is gradually opened.
• If as verified, go to next step.
• If not as verified, perform the “Circuit Open/Short Inspection”.
— If there is no open or short circuit, replace the throttle body. (See01-13-5 INTAKE AIR SYSTEM
REMOVAL/INSTALLATION[L3 WITH TC].)
A
B
C
D
E
F
TP SENSOR
WIRING HARNESS SIDE CONNECTOR
acxuuw00000110
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
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
WIRING HARNESS-SIDE CONNECTOR
acxuuw00000108
1871-1U-06B(01-40).fm 33 ページ 2006年3月15日 水曜日 午前10時53分
![](/vehicles/rke/eetan/dot/alet.png)
CONTROL SYSTEM [L3 WITH TC]
01-40–34
3. Verify that the PCM terminal 1Y and 1AC voltages are as shown in the following table.
• If the voltage is not according to the following table, perform the “Circuit Open/Short Inspection”.
— If there is no open or short circuit, replace accelerator pedal. (See01-13-17 ACCELERATOR PEDAL
REMOVAL/INSTALLATION[L3 WITH TC].)
APP sensor output voltage
Circuit Open/Short Inspection
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
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
WIRING HARNESS-SIDE CONNECTOR
acxuuw00000119
Condition
PCM terminal 1Y
(APP sensor
No.1)
PCM terminal
1AC
(APP sensor
No.2)
APP is depressed
3.65— 3.93 V
3.10— 3.38
APP is released
1.56— 1.65V
1.01— 1.10
LOW
HIGH
OUTPUT
VOLTAGE
SMALL
APP SENSOR No.2
APP SENSOR No.1
LARGE
THROTTLE
OPENING ANGLE
THE CHARACTERISTICS OF
TP SENSOR (REFERENCE)
acxuuw00000120
APP SENSOR
WIRING HARNESS SIDE CONNECTOR
A
B
C
D
E
F
acxuuw00001926
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
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
WIRING HARNESS-SIDE CONNECTOR
acxuuw00000119
1871-1U-06B(01-40).fm 34 ページ 2006年3月15日 水曜日 午前10時53分
![](/vehicles/rke/eetan/dot/yorun.png)
CONTROL SYSTEM [L3 WITH TC]
01-40–35
01-40
1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)
Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— APP sensor terminal A and PCM terminal 1AJ
— APP sensor terminal B and PCM terminal 1AV
— APP sensor terminal C and PCM terminal 1AC
— APP sensor terminal D and PCM terminal 1Q
— APP sensor terminal E and PCM terminal 1U
— APP sensor terminal F and PCM terminal 1Y
Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— APP sensor terminal A and body ground
— APP sensor terminal B and power supply
— APP sensor terminal C and power supply
— APP sensor terminal C and body ground
— APP sensor terminal D and body ground
— APP sensor terminal E and power supply
— APP sensor terminal F and power supply
— APP sensor terminal F and body ground
End Of Sie
WM: FUEL PRESSURE SENSOR
FUEL PRESSURE SENSOR REMOVAL/INSTALLATION[L3 WITH TC]
id014039801200
Note
• If the fuel pressure sensor is removed, do not reuse the fuel pressure sensor and the fuel delivery pipe.
When you replace the fuel pressure sensor, replace a new fuel delivery pipe with a new fuel pressure
sensor. (See 01-14-23 FUEL INJECTOR REMOVAL/INSTALLATION[L3 WITH TC])
End Of Sie
FUEL PRESSURE SENSOR INSPECTION[L3 WITH TC]
id014039801300
Note
• Before performing the following inspection, make sure to follow the procedure as indicated in the
troubleshooting flowchart. (See 00-00-3 HOW TO USE THIS MANUAL.)
1. Connect the M-MDS to the DLC-2.
2. Turn the ignition switch to the ON position (Engine
off).
3. Select the FUEL_PRES PID on the M-MDS.
4. After warming up the engine, verify that the
FUEL_PRES PID is at the standard value under
the following conditions.
— If not as verified, replace the fuel delivery
pipe.
5. After connecting the spill valve control solenoid valve connector, clear the DTC.
Step
Condition
FUEL_PRES PID
1
• Idle
• 90 s after engine is
started
Approx. 3 MPa
2
• Idle
• Spill valve solenoid
valve connector is
disconnected
Approx. 530 kPa
DLC-2
acxuuw00000084
1871-1U-06B(01-40).fm 35 ページ 2006年3月15日 水曜日 午前10時53分
![](/vehicles/rke/eetan/dot/yed.png)
CONTROL SYSTEM [L3 WITH TC]
01-40–36
Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)
Open circuit
• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
— Fuel pressure sensor terminal A and PCM terminal 2P
— Fuel pressure sensor terminal B and PCM terminal 2R
— Fuel pressure sensor terminal C and PCM terminal 2I
Short circuit
• If there is continuity, there is a short circuit. Repair or replace the wiring harness.
— Fuel pressure sensor terminal A and power supply.
— Fuel pressure sensor terminal B and power supply.
— Fuel pressure sensor terminal B and body ground.
— Fuel pressure sensor terminal C and body ground
End Of Sie
WM: HEATED OXYGEN SENSOR
FUEL PRESSURE SENSOR
WIRING HARNESS SIDE CONNECTOR
A
B
C
acxuuw00000085
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
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
WIRING HARNESS-SIDE CONNECTOR
acxuuw00000086
1871-1U-06B(01-40).fm 36 ページ 2006年3月15日 水曜日 午前10時53分
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст