Engine Control System (L3 with TC): Other Mazda 6 GG рестайлинг

Using the WDS or Equivalent

Note. PIDs for the following parts are not available on this model. Perform the specific inspections for the following parts: CMP sensor (See CAMSHAFT POSITION (CMP) SENSOR INSPECTION [L3 WITH TC] ). Main relay (See RELAY INSPECTION ).

Scheme 175

1. Connect the WDS or equivalent to the DLC-2.
2. Turn the ignition switch to the ON position.
3. Measure the PID value. If PID value is not within the specification, follow the instructions in the "Inspection item" column. NOTE: The PID/DATA MONITOR function monitors the calculated value of the input/output signals in the PCM. Therefore, an output device malfunction is not directly indicated as a malfunction of the monitored value for the output device. If a monitored value of an output device is out of specification, inspect the monitored value of the input device related to the output control. For input/output signals except those of the monitoring items, use a voltmeter to measure the PCM terminal voltage. The simulation items that are used in the ENGINE CONTROL SYSTEM OPERATION INSPECTION are as follows. ACCS, ALTF, ARPMDES, FAN_DUTY, EVAPCP, FP, FUELPW1, GENVDSD, HTR11, HTR12, IMRC, INJ_1, INJ_2, INJ_3, INJ_4, SEGRP, test, VT DUTY1, WGC

PID/DATA monitor table (reference)

PID/DATA MONITOR CHART

Without Using the SST

1. Measure the voltage at each terminal. If any incorrect voltage is detected, inspect the related system(s), wiring harnesses and connector(s) referring to the Action column in the terminal voltage table.

Scheme 176

TERMINAL VOLTAGE REFERENCE CHART

Generator output voltage signal

PCM terminals

1. 1AB (+)-Body ground (-)

Oscilloscope setting

1. 2 V/DIV (Y), 2 ms/DIV (X), DC range

Vehicle condition

Scheme 177

1. Idle after warm up (no load, P/S off, A/C off)

Generator field coil control signal

PCM terminals

1. 1AD(+)-Body ground(-)

Oscilloscope setting

1. 0,5 V/DIV (Y), 1 ms/DIV (X), DC range

Vehicle condition

Scheme 178

1. Idle after warm up (no load, P/S off, A/C off)

Fuel injector check signal

PCM terminals

1. 2B(+)-Body ground(-)

Oscilloscope setting

1. 2 V/DIV (Y), 10 ms/DIV (X), DC range

Vehicle condition

Scheme 179

1. Idle after warm up (no load, P/S off, A/C off)

CKP sensor signal

PCM terminals

1. 2C(+)-Body ground(-)

Oscilloscope setting

1. 2 V/DIV (Y), 5 ms/DIV (X), DC range

Vehicle condition

Scheme 180

1. Idle after warm up (no load, P/S off, A/C off)

CMP sensor signal

PCM terminals

1. 2E(+)-Body ground(-)

Oscilloscope setting

1. 2 V/DIV (Y), 50 ms/DIV (X), DC range

Vehicle condition

Scheme 181

1. Idle after warm up (no load, P/S off, A/C off)

Fuel injection control

PCM terminals

1. Fuel Injection No.1: 3B(+)-Body ground(-)
2. Fuel Injection No.2: 3E(+)-Body ground(-)
3. Fuel Injection No.3: 3H(+)-Body ground(-)
4. Fuel Injection No.4: 3K(+)--Body ground(-)

Oscilloscope setting

1. 2 V/DIV (Y), 20 ms/DIV (X), DC range

Vehicle condition

Scheme 182

1. Idle after warm up (no load, P/S off, A/C off)

IGT control signals

PCM terminals

1. IGT1(No.1): 3W(+)-Body ground(-)
2. IGT2(No.2): 3X(+)-Body ground(-)
3. IGT3(No.3): 3Z(+)-Body ground(-)
4. IGT4(No.4): 3AA(+)-Body ground(-)

Oscilloscope setting

1. 2 V/DIV (Y), 20 ms/DIV (X), DC range

Vehicle condition

Scheme 183

1. Idle after warm up (no load, P/S off, A/C off)

OCV control signal

PCM terminals

1. 4S(+)-Body ground(-)

Oscilloscope setting

1. 2.5 V/DIV (Y), 1 ms/DIV (X), DC range

Vehicle condition

Scheme 184

1. Idle after warm up (no load, P/S off, A/C off)

Purge control signal

PCM terminals

1. 4T(+)-Body ground(-)

Oscilloscope setting

1. 2.V/DIV (Y), 10 ms/DIV (X), DC range

Vehicle Condition

Scheme 185

1. Idle after warm up (no load, P/S off, A/C off)

HO2S (front) heater control signal

PCM terminals

1. 4AD(+)-Body ground(-)

Oscilloscope setting

1. 2.5 V/DIV (Y), 20 ms/DIV (X), DC range

Vehicle condition

Scheme 186

1. Idle after engine start (no load, P/S off, A/C off)

PCM CONFIGURATION [L3 WITH TC]

1. Connect the WDS or equivalent to the DLC-2.
2. Perform the vehicle identification procedure
3. Select "toolbox" and "Module Programming".
4. Select "Programmable Module Installation".
5. Select "PCM" and perform procedures according to directions. NOTE: If the PCM is replaced with a new one without performing "Programmable Module Installation" procedure, the PCM will be set DTC P0602 and illuminates the MIL. This is because the configuration data is not programmed in the PCM.
6. Retrieve DTCs with the WDS or equivalent, erase them, and verify that there are no DTCs present and the MIL is off. If DTCs are still present, perform applicable DTC inspection.

Scheme 187

1. Disconnect the negative battery cable.
2. Remove the battery and the battery tray.
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.

Scheme 188

1. Inspect using the wave profile. If any incorrect voltage is detected, inspect the related system(s), wiring harnesses and connector(s).

Fuel Injector Signal (+)

Injector driver module terminals

1. Fuel injection No.1:1 F(+) - Body ground(-)
2. Fuel injection No.2:1 A(+) - Body ground(-)
3. Fuel injection No.3:1 A(+) - Body ground(-)
4. Fuel injection No.4:1 F(+) - Body ground(-)

Oscilloscope setting

1. 25 V/DIV (Y), 0.2 ms/DIV (X), DC range

Vehicle condition

Scheme 189

1. Idle after warm up (no load, P/S off, A/C off)

Fuel Injector Signal (-)

Injector driver module terminals

1. Fuel injection No.1:1 E(+) - Body ground(-)
2. Fuel injection No.2:1 B(+) - Body ground(-)
3. Fuel injection No.3:1 C(+) - Body ground(-)
4. Fuel injection No.4:1 D(+) - Body ground(-)

Oscilloscope setting

1. 25 V/DIV (Y), 0.2 ms/DIV (X), DC range

Vehicle condition

Scheme 190

1. Idle after warm up (no load, P/S off, A/C off)

Short circuit

1. If there is continuity, there is a short circuit. Repair or replace the wiring harness. Clutch switch terminal B and power supply Clutch switch terminal B and body ground

Open circuit

1. If there is no continuity, there is an open circuit. Repair or replace the wiring harness. Neutral switch terminal B and PCM terminal 1W Neutral switch terminal A and body ground

1. If there is no continuity, there is a short circuit. Repair or replace the wiring harness. Neutral switch terminal B and body ground

1. If there is no continuity, there is a short circuit. Repair or replace the wiring harness. PSP switch terminal and body ground

1. If there is continuity, there is a short circuit. Repair or replace the wiring harness. Variable swirl shutter valve switch terminal A and power supply Variable swirl shutter valve switch terminal A and body ground Variable swirl shutter valve switch terminal B and power supply

1. If there is continuity, there is a short circuit. Repair or replace the wiring harness. APP sensor terminal A and power supply 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 power supply 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

1. 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 power supply 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

1. If there is continuity, there is a short circuit. Repair or replace the wiring harness. MAF sensor terminal A and body ground MAF sensor terminal C and power supply MAF sensor terminal C and body ground MAF sensor terminal B and power supply

Specification

MAF SENSOR SPECIFICATION

1. If there is continuity, there is a short circuit. Repair or replace the wiring harness. ECT sensor terminal A and power supply ECT sensor terminal A and body ground ECT sensor terminal B and power supply

1. If there is continuity, there is a short circuit. Repair or replace the wiring harness. MAP/boost air temperature sensor terminal C and power supply. MAP/boost air temperature sensor terminal C and body ground. MAP/boost air temperature sensor terminal D and power supply. MAP/boost air temperature sensor terminal D and body ground

Scheme 191

1. Disconnect the negative battery cable.
2. Remove the charge air cooler cover.
3. Disconnect the MAP sensor connector.
4. Remove MAP sensor from the intake manifold.
5. Install in the reverse order of removal. Tightening torque 5-7 N.m {51-71 kgf.cm, 45-61 in.lbf}

1. If there is no continuity, there is an open circuit. Repair or replace the wiring harness. MAP/boost air temperature sensor terminal A and PCM terminal 2H MAP/boost air temperature sensor terminal B and PCM terminal 1S MAP/boost air temperature sensor terminal C and PCM terminal 2K

1. If there is continuity, there is a short circuit. Repair or replace the wiring harness. MAP/boost air temperature sensor terminal A and power supply MAP/boost air temperature sensor terminal B and power supply MAP/boost air temperature sensor terminal B and body ground MAP/boost air temperature sensor terminal C and body ground

1. If there is no continuity, there is an open circuit. Repair or replace the wiring harness. MAF/IAT sensor terminal D and PCM terminal 2V MAF/IAT sensor terminal E and PCM terminal 2H

1. If there is continuity, there is a short circuit. Repair or replace the wiring harness. MAF/IAT sensor terminal E and power supply MAF/IAT sensor terminal D and power supply MAF/IAT sensor terminal D and body ground

1. If there is no continuity, there is an open circuit. Repair or replace the wiring harness. Fuel pressure sensor terminal A and PCM terminal 2H Fuel pressure sensor terminal B and PCM terminal 1V Fuel pressure sensor terminal C and PCM terminal 2K

1. 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

1. If there is continuity, there is a short circuit. Repair or replace the wiring harness. KS terminal A and power supply KS terminal A and body ground KS terminal B and power supply KS terminal B and body ground

1. If there is continuity, the circuit is shorted. Repair or replace the wiring harness. CMP sensor terminal A and body ground CMP sensor terminal B and power supply CMP sensor terminal B and body ground CMP sensor terminal C and power supply

Scheme 192

1. Remove the battery cover.
2. Disconnect the negative battery cable.
3. Remove the charge air cooler cover. CAUTION: When replacing the CMP sensor, make sure there is no foreign material on it such as metal shavings. If it is installed with foreign material, the sensor output signal will malfunction resulting from fluctuation in magnetic flux and cause a deterioration in engine control.
4. Disconnect the CMP sensor connector.
5. Remove the CMP sensor installation bolt.
6. Remove the CMP sensor from the cylinder head cover.
7. Install in the reverse order of removal. Tightening torque 5.5-7.5 N.m {56-76 kgf.cm, 49-66 in.lbf}

1. If there is continuity, the circuit is shorted. Repair or replace the wiring harness. CKP sensor terminal A and power supply CKP sensor terminal B and power supply CKP sensor terminal B and body ground CKP sensor terminal C and body ground

1. If there is no continuity in the following wiring harnesses, there is an open circuit. Repair or replace the wiring harness. Front HO2S terminal 1A and PCM terminal 2D Front HO2S terminal 1B and PCM terminal 2G Front HO2S terminal 1C and PCM terminal 2J Front HO2S terminal 2A and PCM terminal 2H Front HO2S terminal 2B and main relay terminal C Front HO2S terminal 2C and PCM terminal 2M Front HO2S terminal 2D and PCM terminal 4AD

1. If there is continuity in the following wiring harnesses, there is a short circuit. Repair or replace the wiring harness. Front HO2S terminal 1A and body ground Front HO2S terminal 1A and power supply Front HO2S terminal 1B and body ground Front HO2S terminal 1B and power supply Front HO2S terminal 1C and body ground Front HO2S terminal 1C and power supply Front HO2S terminal 2A and power supply Front HO2S terminal 2B and body ground Front HO2S terminal 2C and body ground Front HO2S terminal 2C and power supply Front HO2S terminal 2D and body ground Front HO2S terminal 2D and power supply

Scheme 193

1. Warm up the engine to normal operating temperature.
2. Using the WDS or equivalent, monitor the following: Vehicle speed (PID: VSS) Engine speed (PID: RPM) Rear HO2S voltage (PID: O2S12)
3. Drive the vehicle and decelerate the engine speed by releasing the accelerator pedal fully when the engine speed is 3,000 RPM or more.
4. Verify that the rear HO2S outputs a voltage of 0.6 V or more , one time or more, then verify that the rear HO2S voltage (PID: O2S12) is 0.3 V or less while decelerating as shown in the figure. If not within the specification, inspect the HO2S for an open or short circuit. (See «REAR HO2S CIRCUIT OPEN/SHORT INSPECTION (SENSOR)»(ref-244577-S09241545312006092500000) ). Then if there is no malfunction in the wiring harness, replace the rear HO2S.

Scheme 194

Scheme 195

1. Disconnect the PCM connector.
2. Disconnect the rear HO2S connector.
3. Inspect the following wiring harnesses for an open or short circuit. (Continuity inspection)

1. If there is no continuity, there is an open circuit. Repair or replace the wiring harness. Rear HO2S terminal A and PCM terminal 1Y Rear HO2S terminal B and PCM terminal 2H

1. If there is continuity, there is a short circuit. Repair or replace the wiring harness. Rear HO2S terminal A and body ground Rear HO2S terminal A and power supply Rear HO2S terminal B and power supply

Scheme 196

1. Disconnect the rear HO2S connector.
2. Measure the rear HO2S resistance between terminals C and D. If not within the specification, replace the HO2S. Rear HO2S heater resistance 2-50 ohms

Scheme 197

Scheme 198

1. Disconnect the PCM connector.
2. Disconnect the rear HO2S connector.
3. Inspect the following wiring harnesses for an open or short circuit. (Continuity inspection)

1. If there is no continuity, there is an open circuit. Repair or replace the wiring harness. Rear HO2S terminal C and ignition switch Rear HO2S terminal D and PCM terminal 4Z

1. If there is no continuity, there is a short circuit. Repair or replace the wiring harness. Rear Rear HO2S terminal C and body ground Rear HO2S terminal D and power supply Rear HO2S terminal D and body ground