Mazda CX 7. Manual - part 144

 

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Mazda CX 7. Manual - part 144

 

 

CONTROL SYSTEM [L3 WITH TC]

01-40–17

01-40

PID/DATA monitor table (reference)

Monitor item 

(Definition)

Unit/

Condition

Condition/Specification 

(Reference)

Inspection item

PCM 

terminal

AAT (Ambient air 
temperature)

°C

°F

Ignition switch to the ON position: 
Indicate the ambient air temperature

• MAF/IAT sensor

1M

AC_REQ (Refrigerant 
pressure switch (high, 
low))

On/Off

Refrigerant pressure is more than 
the specification or less than the 
specification. (Refrigerant pressure 
switch (high, low) is off.): Off
Except above: On

• Refrigerant pressure switch (high, 

low)

1AU

ACCS (A/C relay)

On/Off

A/C relay is ON: On
A/C relay is OFF: Off

• The following PIDs:

— RPM, TP, ECT

• A/C relay

1I

AFR (Air/fuel ratio)

— 

Target air-oil ratio is displayed

• HO2S

2Q

2Z

2AC
2AD

AFR_ACT (Actual air/
fuel ratio)

— 

Actual air-oil ratio is displayed

• HO2S

2Q

2Z

2AC
2AD

ALTF (Generator field 
coil control duty value)

%

Ignition switch to the ON position: 
0%
Idle: 0— 100%
Just after A/C switch ON and fan 
switch ON at idle: Duty value rises

• The following PIDs:

— IAT, ECT, RPM, VPWR, ALTT V

• Generator

2AI

ALTT V (Generator 
output voltage)

V

Idle (no E/L): Approx. 14 V (This is 
an internal calculation value and 
differs from the terminal voltage.)

• Generator

2AJ

APP (Accelerator pedal 
position)

%

Accelerator pedal is released: 0%
Accelerator pedal is depressed: 
100%

• The following PIDs:

— APP1, APP2

• APP sensor

1Y

1AC

APP1 (Accelerator 
pedal position)

%

Accelerator pedal is released: 
31.0— 32.4%
Accelerator pedal is depressed: 
69.8— 81.8%

• APP sensor

1Y

V

Accelerator pedal is released: 
1.56— 1.65 V
Accelerator pedal is depressed: 
3.65— 3.93 V

APP2 (Accelerator 
pedal position)

%

Accelerator pedal is released: 
20.2— 21.4%
Accelerator pedal is depressed: 
58.8— 70.8%

• APP sensor

1AC

V

Accelerator pedal is released: 
1.01— 1.10 V
Accelerator pedal is depressed: 
3.10— 3.38 V

ARPMDES (Target 
engine speed)

RPM

Shift position: P or N

— No load: 700 rpm

— E/L operating: 700 rpm

— P/S operating: 700 rpm

— A/C ON: 700 rpm

• The following PIDs:

— IAT, RPM, MAP, ECT, MAF, TP, 

INGEAR, PSP, ALTT V

• CKP sensor

— 

BARO (Barometric 
pressure)

kPa, Bar, psi

Ignition switch is ON at sea level: 
Approx. 101 kPa {1.01 Bar, 14.6psi}

• BARO sensor

— 

V

Ignition switch is ON at sea level: 
Approx. 4.0 V

BAT

°C

Boost air temperature is displayed

• MAP/boost air temperature 

sensor

2N

BAT_V

V

Boost air temperature 20 

°C {68 °F}: 

2.4— 2.6 V

• MAP/boost air temperature 

sensor

2N

Boost air temperature 30 

°C {86 °F}: 

1.7— 1.9 V

BOO
(Brake switch)

On/Off

Brake pedal depressed: On
Brake pedal released: Off

• Brake switch No.1/No.2

1AB
1AF

1871-1U-06B(01-40).fm  17 ページ  2006年3月15日 水曜日 午前10時53分

CONTROL SYSTEM [L3 WITH TC]

01-40–18

BPA
(Brake pressure 
applied switch)

On/Off

Brake pedal depressed: On
Brake pedal released: Off

• Brake switch No.1/No.2

1AB
1AF

CATT11_DSD
(Estimated catalytic 
converter temperature)

°C

°F

Indicate the estimated catalytic 
converter temperature

• Perform applicable DTC 

troubleshooting.

— 

CHRGLP (Generator 
warning light)

On/Off

Ignition switch to the ON position: 
On
Idle: Off

• Perform applicable DTC 

troubleshooting.

— 

COLP (Refrigerant 
pressure switch 
(middle))

ON/OFF

Refrigerant pressure is more than 
the specification. (Refrigerant 
pressure switch (middle) is on.): On
Refrigerant pressure is less than the 
specification. (Refrigerant pressure 
switch (middle) is off.): Off

• Refrigerant pressure switch 

(middle)

1J

DTCCNT (Number of 
DTC detected)

— 

Indicates number of DTC

• Perform applicable DTC 

troubleshooting.

— 

ECT (Engine coolant 
temperature)

°C

°F

Ignition switch to the ON position: 
Indicate the ECT

• ECT sensor

2AH

V

ECT 20 

°C {68 °F}: 3.04— 3.14 V

ECT 60 

°C {140 °F}: 1.29— 1.39 V

EQ_RAT11
(Equivalence ratio 
(lambda))

— 

Idling after warm-up: Approx. 1

• Perform applicable DTC 

troubleshooting.

— 

EQ_RAT11_DSD
(Front oxygen sensor)

— 

Idling after warm-up: Approx. 1

• Perform applicable DTC 

troubleshooting.

— 

ETC_ACT (Electronic 
throttle control actual)

°

Indicate the desired TP by angle

• Perform applicable DTC 

troubleshooting.

2AK

2AL

ETC_DSD (Electronic 
throttle control desired)

%

Indicate the desired TP by percent

• The following PIDs:

— APP1, APP2, ETC_ACT

• TP sensor

2AK

2AL

°

Indicate the desired TP by angle

EVAPCP (Purge 
solenoid valve duty 
value)

%

Ignition switch to the ON position: 
0%
Idle: 0%

• The following PIDs:

— IAT, RPM, ECT, MAF, 

O2S11,BARO, INGEAR, 
VPWR

• Purge solenoid valve

2AB

FAN_DUTY

%

ECT less than 98 

°C {208 °F}: 0%

ECT 100 

°C {212 °F}: 30%

ECT 106 

°C {223 °F}: 70%

ECT 110 

°C {230 °F}: 100%

• Fan control module

1R

1AE

FIA (Fuel injection 
amount)

— 

Indicate the fuel injection amount.

• Fuel injector

• Fuel Injector relay

— 

FLI
(Fuel level)

%

Fuel gauge level F: Approx. 100%
Fuel gauge level E: Approx. 0%

• Perform applicable DTC 

troubleshooting.

— 

FP (Fuel pump relay)

On/Off

Idle: On
Cranking: On

• The following PIDs:

— RPM

• Fuel pump relay

1H

FP_Hi_PRES

On/Off

Spill valve control solenoid valve 
work: On
Spill valve control solenoid valve 
don’t work: Off

• High pressure fuel pump

2F

2G

FUEL_PRES

Pa

Idle: Approx. 3 MPa
Load 60 % or more: Approx. 11.5 
MPa

• Fuel pressure sensor

2R

FUEL_PRES_V

V

Ignition switch to the ON position: 
Approx. 1.1 V
Idle: Approx. 1.7 V

• Fuel pressure sensor

2R

FUELPW (Fuel injector 
duration)

sec

Idle: Approx. 2.0 ms

• The following PIDs:

— ECT, IAT, RPM, TP, MAF, 

O2S11, O2S12, MAP, VSS, 
TR, BOO, AC_REQ, COLP, 
VPWR

2AZ
2BB

2BC
2BD

Monitor item 

(Definition)

Unit/

Condition

Condition/Specification 

(Reference)

Inspection item

PCM 

terminal

1871-1U-06B(01-40).fm  18 ページ  2006年3月15日 水曜日 午前10時53分

CONTROL SYSTEM [L3 WITH TC]

01-40–19

01-40

FUELSYS
(Fuel system status)

OL/CL/

OL-Drive/

 OL-Fault/

CL-Fault

Ignition switch to the ON position: 
OL_Drive
Idle (after warm up): CL

• The following PIDs:

— IAT, MAF, TP, MAP, ECT, RPM, 

O2S11, O2S12, INGEAR, PSP, 
VPWR, ALTT V

• Fuel injector

— 

GENVDSD
(Generator voltage 
desired)

V

Idle: Approx. 13.83 V

*1

(E/L not 

operating)

• Perform applicable DTC 

troubleshooting.

— 

HTR11
(HO2S heater (front))

On/Off

Idle (after warm up): On

⇔Off

• The following PIDs:

— IAT, MAF, TP, ECT, RPM

2C

HTR12
(HO2S heater (rear))

On/Off

Idle: On
Engine speed is above 4,000 rpm: 
Off

• The following PIDs:

— IAT, MAF, ECT, RPM, ACSW

2D

IAT
(Intake air temperature)

°C

°F

Ignition switch to the ON position 
position: Indicate the IAT

• MAF/IAT sensor

1M

V

IAT 20 

°C {68 °F}: 2.4— 2.6V

IAT 30 

°C {86 °F}: 1.7— 1.9V

IMRC (Variable swirl 
solenoid valve)

On/Off

Engine speed is below Approx. 
3,750 rpm and ECT is below 60 

°C 

{140 

°F}: On

Others: Off

• The following PIDs:

— TP, ECT, RPM

• Variable swirl solenoid valve

2AS

INGEAR (Load/no load 
condition)

On/Off

Driving range: On
Except above: Off
Others: On

• Perform applicable DTC 

troubleshooting.

— 

IVS (CTP condition)

Idle/

Off Idle

APP closed: Idle
Others: Off Idle

• Perform applicable DTC 

troubleshooting.

2AK

2AL

KNOCKR (Knocking 
retard)

°

Ignition switch to the ON position: 0 

°
Idle: 0 

°

• KS

2U
2V

LDP_EVAPCP (EVAP 
system leak detection 
pump detect incorrect 
purge flow)

A

Indicate the EVAP control system 
incorrect purge flow detection value

• Perform applicable DTC 

troubleshooting.

— 

LDP_IDL (EVAP 
system leak detection 
pump idle current)

A

Indicate the EVAP system leak 
detection pump idle current

• Perform applicable DTC 

troubleshooting.

— 

LDP_MON (EVAP 
system leak detection 
pump monitoring 
current)

A

Indicate the EVAP system leak 
detection pump monitoring current

• Perform applicable DTC 

troubleshooting.

— 

LDP_REF (EVAP 
system leak detection 
pump reference 
current)

A

Indicate the EVAP system leak 
detection pump reference current

• Perform applicable DTC 

troubleshooting.

— 

LDP_SLDV (EVAP 
system small leak 
detection value)

A

Indicate the EVAP control system 
small leak detection value

• Perform applicable DTC 

troubleshooting.

— 

LDP_VSL_FV

*1

(EVAP 

system very small leak 
detection fail value)

mA/sec

Indicate EVAP system very small 
leak detection fail value

• Perform applicable DTC 

troubleshooting.

— 

LDP_VSL_SV

*1 

(EVAP 

system very small leak 
detection safe value)

mA/sec

Indicate EVAP system very small 
leak detection safe value

• Perform applicable DTC 

troubleshooting.

— 

LDP_VSLDV

*1

 (EVAP 

system small leak 
detection value)

mA/sec

Indicate the EVAP control system 
vary small leak detection value

• Perform applicable DTC 

troubleshooting.

— 

LOAD (Engine load)

%

Ignition switch to the ON position: 
0%
Idle (after warm up): 17.1— 18.5%
Engine speed is 2,500 rpm: 14.2— 
15.2

• MAF/IAT sensor

— 

Monitor item 

(Definition)

Unit/

Condition

Condition/Specification 

(Reference)

Inspection item

PCM 

terminal

1871-1U-06B(01-40).fm  19 ページ  2006年3月15日 水曜日 午前10時53分

CONTROL SYSTEM [L3 WITH TC]

01-40–20

LONGFT1 (long term 
fuel trim)

%

Idle (after warm up):–14— 14%

• Perform applicable DTC 

troubleshooting.

— 

MAF (Mass airflow)

g/s

Ignition switch to the ON position: 
Approx. 0 g/s
Idle (after warm up): 2.72— 2.94 g/s
Engine speed is 2,500 rpm: 8.00— 
8.66

• MAF/IAT sensor

1AK

V

Ignition switch to the ON position: 
Approx. 0.7 V
Idle (after warm up): Approx. 1.3 V

MAP (Manifold 
absolute pressure)

Pa

Ignition switch to the ON position: 
Indicate the atmospheric pressure

• MAP sensor

2AG

V

Ignition switch to the ON position: 
Approx. 1.9 V
Idle (after warm up): Below 1.0 V

MIL (Malfunction 
indicator lamp)

On/Off

Ignition switch to the ON position: 
On
Idle: Off

• Perform applicable DTC 

troubleshooting.

— 

MIL_DIS (Traveled 
distance since the MIL 
illuminated)

km

mile

No DTC: 0 km {0 mile}
DTC detected: Not 0 km {0 mile}

• Perform applicable DTC 

troubleshooting.

— 

O2S11
(Front oxygen sensor)

A

Idle (after warm up): –1.0— 1.0 A
Deceleration (after warm up):
 0.25 A or more

• HO2S (front)

2Z

2AC
2AD

O2S12
(Rear oxygen sensor)

V

Idle: 0— 1 V

• HO2S (rear)

2Q

PSP (Power steering 
pressure switch)

High/Low

Steering wheel in straight ahead 
position: Low
Others: High

• PSP switch

2T

RO2FT1 (Rear oxygen 
sensor fuel trim)

— 

• Idle after warm-up: Approx. 0.2

• The following PID

— O2S12

2Q

RPM (Engine speed)

RPM

No load: 650— 750 rpm
E/L operating: 650— 750 rpm
P/S operating: 650— 750 rpm
A/C ON: 650— 750 rpm

• CKP sensor

2W

SCCS
(Speed control 
command switch)

V

Press ON/OFF: Approx. 0 V
Press CANCEL: Approx. 1.1 V
Press SET/COAST: Approx. 3.1 V
Press RES/ACCEL: Approx. 4.2 V
Others: Approx. 5.0 V

• Cruise control switch

1AQ

SEGRP
(EGR valve (stepping 
motor) position)

— 

Idle: 0 step
Cranking: 0— 60 steps

• The following PIDs:

— MAF, TP, ECT, RPM, VSS

• EGR valve

— 

SEGRP DSD
(Desired EGR valve 
(stepping motor) 
position)

%

Idle: 0%

• The following PIDs:

— MAF, TP, ECT, RPM, VSS

— 

SELTESTDTC
(DTC of KOEO/KOER 
self-test)

— — 

• Perform applicable DTC 

troubleshooting.

— 

SHRTFT1
(Short term fuel trim 
[front HO2S])

%

Idle (after warm up): Approx.–30— 
25%

• Perform applicable DTC 

troubleshooting.

— 

SHRTFT12
(Short term fuel trim)

%

Idle (after warm up): Approx.–30— 
25%

• Perform applicable DTC 

troubleshooting.

— 

SPARKADV (Ignition 
timing)

°(BTDC)

Idle: BTDC Approx. 10

°

• The following PIDs:

— MAF, TP, ECT, RPM, INGEAR, 

PSP, ACSW, VPWR

• Ignition timing

— 

test (Test mode)

On/Off

— 

— 

— 

TIRESIZE (Tire 
revolution per mile)

rev/mile

Indicate the tire circumference 
length

— — 

Monitor item 

(Definition)

Unit/

Condition

Condition/Specification 

(Reference)

Inspection item

PCM 

terminal

1871-1U-06B(01-40).fm  20 ページ  2006年3月15日 水曜日 午前10時53分

 

 

 

 

 

 

 

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