Engine Controls - Control System [L3 with Tc]: Other Mazda CX-7 I рестайлинг

PCM Connector Connection Note

Scheme 73

Scheme 74

Scheme 75

1. Verify that the PCM connector lever is tilted towards the wiring harness side as shown in the figure.
2. Insert the PCM connector straight until it contacts the PCM and verify that the lever reverts upward naturally.
3. Push the lever until a click is heard.

Without Using the M-MDS

Note. The PCM terminal voltage can vary with the conditions when measuring and changes due to aged deterioration on the vehicle, causing false diagnosis. Therefore determine comprehensively where the malfunction occurs among the input systems, output systems, and the PCM.

Scheme 76

1. Disconnect the negative battery cable.
2. Remove the battery and battery tray. (See «BATTERY REMOVAL/INSTALLATION [L3 WITH TC]»(ref-375338-S37461824502010102800000) .)
3. Remove the windshield wiper arm and blade. (See «WINDSHIELD WIPER ARM AND BLADE REMOVAL/INSTALLATION»(ref-375374-S11692705452010102800000) .)
4. Remove the cowl grille. (See «COWL GRILLE REMOVAL/INSTALLATION»(ref-375375-S07009167252010102800000) .)
5. Remove the windshield wiper motor. (See «WINDSHIELD WASHER MOTOR REMOVAL/INSTALLATION»(ref-375374-S25116322492010102800000) .)
6. Remove the cowl panel. (See «COWL PANEL REMOVAL/INSTALLATION»(ref-375392-S10901129492010102800000) .)
7. Remove the PCM bracket with the PCM connector still connected. (See «PCM REMOVAL/INSTALLATION [L3 WITH TC]»(ref-375326-S09864314392010102800000) .)
8. Install the battery and battery tray. (See «BATTERY REMOVAL/INSTALLATION [L3 WITH TC]»(ref-375338-S37461824502010102800000) .)
9. Connect the negative battery cable. PCM terminal voltage table (Reference)

PCM CONNECTOR TERMINALS REFERENCE CHART

Using the M-MDS

Note. PIDs for the following parts are not available on this model. Perform the specific inspections for the following parts

1. CMP sensor (See «CAMSHAFT POSITION (CMP) SENSOR INSPECTION [L3 WITH TC]»(ref-375326-S12672608582010102800000) .)
2. Main relay

Scheme 77

1. Connect the M-MDS 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, EVAPCP, EVAPCV, FAN_DUTY, FAN_DUTY2, FP, IMRC, INJ_1, INJ_2, INJ_3, INJ_4, SEGRP, TEST, VT DUTY1 Wt, WGC PID/DATA monitor table (reference) PID/DATA MONITOR REFERENCE CHART Monitor item (Definition) Unit/Condition Condition/Specification (Reference) Inspection item PCM terminal AAT (Ambient air temperature) °C °F Ignition switch to the ON position: Indicates the ambient air temperature IAT sensor 1M AC_REQ (A/C request signal) OFF/ON A/C switch OFF: OFF A/C switch ON: ON Perform applicable DTC troubleshooting - ACCS (A/C relay) OFF/ON A/C relay OFF: OFF A/C relay ON: ON The following PIDs: RPM, TP REL, ECT A/C relay 1I AFR (Air/fuel ratio) - Target air-fuel ratio is displayed A/F sensor 2Z 2AC 2AD AFR_ACT (Actual air/fuel ratio) - Actual air-fuel ratio is displayed A/F sensor 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 1AW 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 1AX 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: 1.56-1.65V 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: 1.01-1.10V Accelerator pedal is depressed: 3.10-3.38 V ARPMDES (Target engine speed) RPM Indicate the target engine speed The following PIDs: IAT, RPM, MAP, ECT, MAF, TP REL, INGEAR, PSP, ALTT V - BARO (Barometric pressure) Pa Ignition switch is ON at sea level: Approx. 101 kPa{1.01 Bar, 14.6 psi} BARO sensor - V Ignition switch is ON at sea level: Approx. 4.0 V BAT (Boost air temperature) °C Boost air temperature is displayed MAP/boost air temperature sensor 2N V Boost air temperature 20°C {68°F}: 2.4-2.6 V Boost air temperature 30°C {86°F}: 1.7-1.9 V BOO (Brake switch) OFF/ON Brake pedal depressed: ON Brake pedal released: OFF Brake switch No.1 1AB BPA (Brake pressure applied switch) OFF/ON Brake pedal depressed: ON Brake pedal released: OFF Brake switch NO.2 1AF CATT11_DSD (Estimated catalytic converter temperature) °C °F Indicates the estimated catalytic converter temperature Perform applicable DTC troubleshooting. - CHRGLP (Generator warning light) OFF/ON Ignition switch to the ON position: ON Idle: OFF Perform applicable DTC troubleshooting. - ECT (Engine coolant temperature) °C °F Ignition switch to the ON position: Indicates 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 (Desired equivalence ratio (lambda)) - Idling after warm-up: Approx. 1 Perform applicable DTC troubleshooting. - ETC_ACT (Electronic throttle control actual) ° Indicates the desired TP by angle Perform applicable DTC troubleshooting. 2A 2B ETC_DSD (Electronic throttle control desired) % Indicates the desired TP by percent The following PIDs: APP1, APP2, ETC_ACT TP sensor - ° Indicates 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 EVAPCV (Evaporative emission canister vent valve) OFF/ON Simulation item (EVAPCV) is ON: ON CV solenoid valve 1AS FAN_DUTY (Fan duty cycle) % 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 NO.1 1AE FAN_DUTY2 (Fan duty cycle) % 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 NO.2 1R FCL (Fuel cap warning light) OFF/ON Fuel cap warning light not illuminated: OFF Fuel cap warning light illuminated: ON Perform applicable DTC troubleshooting. - FIA (Fuel injection amount) - Indicates 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) OFF/ON Idle: ON Cranking: ON The following PIDs: - RPM Fuel pump relay 1H FP_Hi_PRES (High pressure fuel pump) Off/On Spill valve control solenoid valve work: On Spill valve control solenoid valve don't work: Off High pressure fuel pump 2F 2G FTP (Fuel tank pressure sensor) Pa Indicate the fuel tank pressure Fuel tank pressure sensor 1AG V Fuel tank pressure is equal to barometric pressure: approx. 2.625 V FUEL_P_DSD (Fuel pressure desired) Pa Indicate the target fuel pressure. The following PIDs: ECT, FUEL PRES, MAF, RPM, VPWR, - FUEL_PRES (Fuel pressure sensor) Pa Idle: Approx. 3 MPa Load 60 % or more: Approx. 11.5 MPa Fuel pressure sensor 2R FUELPW (Fuel injector duration) sec Idle: Approx. 450-650 μs The following PIDs: ECT, IAT, RPM, TP REL, MAF, O2S11, O2S12, MAP, VSS, BOO, AC_REQ, VPWR 2AZ 2BB 2BC 2BD 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 REL, MAP, ECT, RPM, O2S11, O2S12, INGEAR, PSP, VPWR, ALTT V Fuel injector - HTR11 (A/F sensor heater) OFF/ON Idle (after warm up): ON OFF The following PIDs: IAT, MAF, TP, ECT, RPM A/F sensor heater 2C HTR12 (HO2S heater) OFF/ON Idle: ON Engine speed is above 4,000 rpm: OFF The following PIDs: IAT, MAF, ECT, RPM, ACSW HO2S heater 2D IAT (Intake air temperature) °C °F Ignition switch to the ON position position: Indicates 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) OFF/ON Engine speed is below Approx. 3,250 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) OFF/ON 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. - KNOCKR (Knocking retard) ° Ignition switch to the ON position: 0 ° Idle: 0 ° KS 2U 2V 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 - 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: Indicates 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) OFF/ON 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 (A/F sensor) A Idle (after warm up): -1.0-1.0 A Deceleration (after warm up): 0.25 A or more A/F sensor 2Z 2AC 2AD O2S12 (HO2S) V Idle: 0-1 V HO2S 2Q PSP (Power steering pressure switch) OFF/ON Steering wheel in straight ahead position: OFF Wheel turning steering wheel: ON PSP switch 1AD RO2FT1 (HO2S fuel trim) % Idle after warm-up: Approx. 0.2 The following PI D - O2S12 2Q RPM (Engine speed) RPM Indicates the engine speed CKP sensor 2W SCCS (Speed control command switch) V Press ON/OFF: Approx. 0 V Press CANCEL: Approx. 1.1 V Press SET/-: Approx. 3.1 V Press RES/+: Approx. 4.2 V Others: Approx. 5.0 V Cruise control switch 1AQ SEGRP (EGR valve (stepping motor) position) - Idle: 0 Engine speed is 1,187-4200 rpm: 0-57 The following PIDs: MAF, TP REL, ECT, RPM, VSS EGR valve 2AM 2AN 2AQ 2AR SEGRP DSD (Desired EGR valve (stepping motor) position) % Indicate the desired EGR valve position The following PIDs: MAF, TP REL, ECT, RPM, VSS - SHRTFT1 (Short term fuel trim [A/F sensor]) % Idle (after warm up): Approx.-30-25% Perform applicable DTC troubleshooting. - SPARKADV (Ignition timing) ° Indicate the ignition timing The following PIDs: MAF, TP REL, ECT, RPM, INGEAR, PSP, VPWR Ignition coil 2AT 2AW 2AX 2BA TEST OFF/ON - - - TH_M (Thermostat monitor) - Indicates heat radiation ratio (heat radiation when thermostat is malfunctioning/heat radiation when thermostat is normal) when thermostat monitoring is finished Thermostat - °C °F Indicates engine coolant temperature when thermostat monitoring is finished - TH_M_MAX (Thermostat monitor max) - Indicates upper limit of heat radiation ratio (heat radiation when thermostat is malfunctioning/heat radiation when thermostat is normal) for thermostat monitoring execution Thermostat - °C °F Indicates upper limit of engine coolant temperature for thermostat monitoring execution - TH_M_MIN (Thermostat monitor min) - Indicates lower limit of heat radiation ratio (heat radiation when thermostat is malfunctioning/heat radiation when thermostat is normal) for thermostat monitoring execution Thermostat - °C °F Indicates lower limit of engine coolant temperature for thermostat monitoring execution - TP REL (Relative TP) % Ignition switch to the ON position (after warm up) APP is released: Approx. 5% APP is depressed: Approx. 5 % NOTE: When the ignition switch is in the ON position (engine is off), the throttle valve is fully closed regardless of the accelerator pedal opening angle. TP sensor 2AK 2AL TP1 (TP sensor 1) % Ignition switch to the ON position (after warm up) APP is released: Approx. 15 % APP is depressed: Approx. 15 % NOTE: When the ignition switch is in the ON position (engine is off), the throttle valve is fully closed regardless of the accelerator pedal opening angle. TP sensor 2AK V Ignition switch to the ON position (after warm up) APP is released: Approx. 0.7 V APP is depressed: Approx. 0.7 V TP2 (TP sensor 2) % Ignition switch to the ON position (after warm up) APP is released: Approx. 15 % APP is depressed: Approx. 15 % NOTE: When the ignition switch is in the ON position (engine is off), the throttle valve is fully closed regardless of the accelerator pedal opening angle. TP sensor 2AL V Ignition switch to the ON position (after warm up) APP is released: Approx. 4.3 V APP is depressed: Approx. 4.3 V TPCT (Lowest closed throttle voltage) V Ignition switch to the ON position: Approx 0.5 V TP sensor 2AK 2AL VPWR (Battery positive voltage) V Indicates the battery voltage Battery 1BA VSS (Vehicle speed) KPH MPH Indicates the vehicle speed Perform applicable DTC troubleshooting. - VT ACT1 (Actual valve timing) ° Idle: Approx. 0° CMP sensor CKP sensor 2S 2W VT DIFF1 (Difference between actual valve timing and target valve timing) ° Idle: Approx. 0° The following PIDs: RPM, LOAD, VT ACT1 CMP sensor - VT DUTY1 (Camshaft position commanded duty cycle) % Idle: Approx. 11.5% The following PIDs: TP, ECT, RPM OCV 2AF WGC (Wastegate control solenoid valve) % Racing with the accelerator pedal fully depressed: 10-100 % Wastegate control solenoid valve 2AA Fully closed: 0 %

Scheme 78

1. Connect the M-MDS to DLC-2.
2. After the vehicle is identified, select the following items from the initialization screen of the M-MDS. When using the IDS (laptop PC) Select the "Module Programming".
3. Then, select items from the screen menu in the following order. Select "Programmable Module Installation". Select "PCM".
4. Perform the configuration according to the directions on the screen.
5. Retrieve DTCs by the M-MDS, then verify that there is no DTC present. If a DTC (s) is detected, perform the applicable DTC inspection. (See «DTC TABLE [L3 WITH TC]»(ref-375324-S26001231552010102800000) .)

Open circuit

1. If there is no continuity, there is an open circuit. Repair or replace the wiring harness. PSP switch terminal and PCM terminal 1AD

Short circuit

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 no continuity, there is an open circuit. Repair or replace the wiring harness. Variable swirl shutter valve switch terminal A and PCM terminal 2AE Variable swirl shutter valve switch terminal B 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 no continuity, there is an open circuit. Repair or replace the wiring harness. ECT sensor terminal A and PCM terminal 2AH ECT sensor terminal B and PCM terminal 2AY

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 no continuity, there is an open circuit. Repair or replace the wiring harness. MAF/IAT sensor terminal A and main relay terminal A *1 , C *2 MAF/IAT sensor terminal B and PCM terminal 1P MAF/IAT sensor terminal C and PCM terminal 1AK

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

*1 : Canada specs.

*2 : Except Canada specs.

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 1M MAF/IAT sensor terminal E and PCM terminal 1AR

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

Scheme 79

1. Disconnect the negative battery cable.
2. Remove the charge air cooler duct. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [L3 WITH TC]»(ref-375331-S03672667482010102800000) .)
3. Remove the oil level gauge pipe. (See «OIL PAN REMOVAL/INSTALLATION [L3 WITH TC]»(ref-375329-S18599866482010102800000) .)
4. Disconnect the MAP/boost air temperature sensor connector.
5. Remove MAP/boost air temperature sensor from the intake manifold.
6. Install in the reverse order of removal. Tightening torque 5.0-7.0 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 2AV MAP/boost air temperature sensor terminal C and PCM terminal 2AU MAP/boost air temperature sensor terminal D and PCM terminal 2AG

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 C and body ground. MAP/boost air temperature sensor terminal D and power supply. MAP/boost air temperature sensor terminal D and body ground

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 2AV MAP/boost air temperature sensor terminal B and PCM terminal 2N MAP/boost air temperature sensor terminal C and PCM terminal 2AU

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. 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 2AJ

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 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 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 1 AC APP sensor terminal D and PCM terminal 1Q APP sensor terminal E and PCM terminal 1U APP sensor terminal F and PCM terminal 1Y

1. 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

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 2P Fuel pressure sensor terminal B and PCM terminal 2R 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 no continuity, the circuit is open. Repair or replace the wiring harness. CKP sensor terminal A and PCM terminal 1AR CKP sensor terminal B and PCM terminal 2W CKP sensor terminal C and main relay terminal A *1 , C *2

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 : Canada specs.

*2 : Except Canada specs.

1. If there is no continuity, the circuit is open. Repair or replace the wiring harness. CMP sensor terminal A and main relay terminal A *1 , C *2 CMP sensor terminal B and PCM terminal 1AR CMP sensor terminal C and PCM terminal 2S

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 C and body ground CMP sensor terminal C and power supply

*1 : Canada specs.

*2 : Except Canada specs.

1. If there is no continuity in the following wiring harnesses, there is an open circuit. Repair or replace the wiring harness. A/F sensor terminal 1A and PCM terminal 2AD A/F sensor terminal 1B and PCM terminal 2AC A/F sensor terminal 1C and PCM terminal 2Z A/F sensor terminal 2A and PCM terminal 2M A/F sensor terminal 2B and main relay terminal A *1 , C *2 A/F sensor terminal 2C and PCM terminal 2Y A/F sensor terminal 2D and PCM terminal 2C

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

*1 : Canada specs.

*2 : Except Canada specs.

Scheme 80

1. Warm up the engine to normal operating temperature.
2. Using the M-MDS, monitor the following: Vehicle speed (PID: VSS) Engine speed (PID: RPM) 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 HO2S outputs a voltage of 0.6 V or more , one time or more, then verify that the 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 «HO2S CIRCUIT OPEN/SHORT INSPECTION»(ref-375326-S04236839702010102800000) .) Then if there is no malfunction in the wiring harness, replace the HO2S.

Scheme 81

1. Disconnect the PCM connector.
2. Disconnect the 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. HO2S terminal A and PCM terminal 2Q HO2S terminal B and PCM terminal 21

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

Scheme 82

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

Scheme 83

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

1. If there is no continuity, there is an open circuit. Repair or replace the wiring harness. HO2S terminal C and ignition switch HO2S terminal D and PCM terminal 2D

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

1. If there is no continuity, there is an open circuit. Repair or replace the wiring harness. KS terminal A and PCM terminal 2U KS terminal B and PCM terminal 2V

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 no continuity, the circuit is open. Repair or replace the wiring harness. Fuel tank pressure sensor terminal A and PCM terminal 1AR Fuel tank pressure sensor terminal B and PCM terminal 1BG Fuel tank pressure sensor terminal C and PCM terminal 1N

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