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Engine Control System [Mzr 2.0, Mzr 2.5]: Diagnosis Mazda 3 BM

Testing & Diagnostics 15 illustrations ~2022 words

Voltage Inspection

Note. The variable tumble shutter valve switch cannot be removed as a single unit. When replacing the variable tumble shutter valve switch, replace it together with the intake manifold as a single unit.

Scheme 10

Scheme 10: Voltage Inspection
Scheme 10: Voltage Inspection
  1. Connect the M-MDS to the DLC-2. (Scheme 10): Identifying DLC-2 Location
  2. Switch the ignition to ON.
  3. Verify that the variable tumble shutter valve switch output voltage (PID: IMRC_POS) is within the specification. (See «ON-BOARD DIAGNOSTIC TEST [MZR 2.0, MZR 2.5]»(ref-579388-S13095199182013100700000).) (See «PCM INSPECTION [MZR 2.0, MZR 2.5]»(ref-579389-S04573371672013100700000).) If not as specified, replace the intake manifold. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579361-S37454927402013100700000).)

Resistance inspection

WARNINGWhen the engine is hot, it can badly burn. Turn off the engine and wait until it is cool before removing the ECT sensor.

Scheme 11

Scheme 11
Scheme 11
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  3. Drain the engine coolant. (See «ENGINE COOLANT REPLACEMENT [MZR 2.0, MZR 2.5]»(ref-579357-S09737378012013100700000).)
  4. Remove the battery and battery tray. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  5. Disconnect the ECT sensor No.1 connector.
  6. Remove the ECT sensor No.1. (See «ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S11842708222013100700000).)
  7. Place the ECT sensor No.1 in water with a thermometer, and heat the water gradually.
  8. Measure the resistance between ECT sensor No.1 terminals A and B. (Scheme 11): Identifying ECT Sensor No.1 Terminals If not as specified, replace the ECT sensor No.1. (See «ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S11842708222013100700000).) SPECIFICATION ECT (°C {°F}) Resistance (kilohms) 20 {68} Approx. 37.34 80 {176} Approx. 3.84
WARNINGWhen the engine is hot, it can badly burn. Turn off the engine and wait until it is cool before removing the ECT sensor.

Scheme 12

Scheme 12
Scheme 12
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  3. Drain the engine coolant. (See «ENGINE COOLANT REPLACEMENT [MZR 2.0, MZR 2.5]»(ref-579357-S09737378012013100700000).)
  4. Disconnect the ECT sensor No.2 connector.
  5. Remove the ECT sensor No.2. (See «ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S11842708222013100700000).)
  6. Place the ECT sensor No.2 in water with a thermometer, and heat the water gradually.
  7. Measure the resistance between ECT sensor No.2 terminals A and B. (Scheme 12): Identifying ECT Sensor No.2 Terminals If not as specified, replace the ECT sensor No.2. (See «ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S11842708222013100700000).) SPECIFICATION ECT (°C {°F}) Resistance (kilohms) 20 {68} Approx. 2.45 80 {176} Approx. 0.318

Visual Inspection

  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000) .)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000) .)
  3. Disconnect the MAF/IAT sensor connector.
  4. Remove the MAF/IAT sensor. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579361-S37454927402013100700000) .)
  5. Visually inspect the MAF/IAT sensor for the following: Damage, cracks, soiling Rusted sensor terminal Bent sensor terminal If there is any malfunction, repair or replace the MAF/IAT sensor. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579361-S37454927402013100700000) .)

Scheme 13

Scheme 13: Voltage Inspection
Scheme 13: Voltage Inspection
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  3. Remove the MAF/IAT sensor without disconnect the MAF/IAT sensor connector. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579361-S37454927402013100700000).)
  4. Reconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  5. Connect the M-MDS to the DLC-2. (Scheme 13): Identifying DLC-2 Location
  6. Switch the ignition to ON.
  7. As the air gradually approaches the MAF detection part of the MAF/IAT sensor, verify that the MAF sensor output voltage (PID: MAF) varies. (See «ON-BOARD DIAGNOSTIC TEST [MZR 2.0, MZR 2.5]»(ref-579388-S13095199182013100700000).) If not as verified, replace the MAF/IAT sensor. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579361-S37454927402013100700000).)

Note. Because the IAT sensor is integrated in the MAF sensor, replacing the IAT sensor includes replacement of the MAF/IAT sensor.

Scheme 14

Scheme 14: Resistance Inspection
Scheme 14: Resistance Inspection
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  3. Disconnect the MAF/IAT sensor connector.
  4. Measure the resistance between MAF/IAT sensor terminals D and E. (Scheme 14): Identifying MAF/IAT Sensor Terminals If not as specified, replace the MAF/IAT sensor. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579361-S37454927402013100700000).) SPECIFICATION IAT (°C {°F}) Resistance (kilohms) 20 {68} 2.21-2.69 60 {140} 0.493-0.667

Scheme 15

Scheme 15: MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]
Scheme 15: MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  3. Remove the plug hole plate. (See «PLUG HOLE PLATE REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579359-S03753736432013100700000).)
  4. Disconnect the MAP sensor connector.
  5. Remove the MAP sensor. (Scheme 15): Locating MAP Sensor With Torque Specifications
  6. Install in the reverse order of removal.

Scheme 16

Scheme 16: Voltage Inspection
Scheme 16: Voltage Inspection
  1. Connect the M-MDS to the DLC-2. (Scheme 16): Identifying DLC-2 Location
  2. Switch the ignition to ON.
  3. Verify that the MAP sensor output voltage (PID: MAP) is within the specification. (See «ON-BOARD DIAGNOSTIC TEST [MZR 2.0, MZR 2.5]»(ref-579388-S13095199182013100700000).) (See «PCM INSPECTION [MZR 2.0, MZR 2.5]»(ref-579389-S04573371672013100700000).) If not as specified, replace the MAP sensor. (See «MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S13593964352013100700000).)

Note. Because the BARO sensor is integrated in the PCM, replacing the BARO sensor includes replacement of the PCM.

Scheme 17

Scheme 17: Voltage Inspection
Scheme 17: Voltage Inspection
  1. Connect the M-MDS to the DLC-2. (Scheme 17): Identifying DLC-2 Location
  2. Switch the ignition to ON.
  3. Verify that the BARO sensor output voltage (PID: BARO) is within the specification. (See «ON-BOARD DIAGNOSTIC TEST [MZR 2.0, MZR 2.5]»(ref-579388-S13095199182013100700000).) (See «PCM INSPECTION [MZR 2.0, MZR 2.5]»(ref-579389-S04573371672013100700000).) If not as specified, replace the PCM. (See «PCM REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S19128577092013100700000).)
CAUTIONThe inspection cannot be performed with this method correctly if there is a malfunction of the APP sensor or throttle valve actuator. Verify that no DTCs related to the APP sensor or throttle valve actuator are stored before the inspection.

Note. The TP sensor cannot be removed as a single unit. When replacing the TP sensor, replace it together with the throttle body as a single unit.

Scheme 18

Scheme 18
Scheme 18
  1. Connect the M-MDS to the DLC-2. (Scheme 18): Identifying DLC-2 Location
  2. Switch the ignition to ON.
  3. Verify that the TP sensor output voltage (PID: TP1, TP2) varies according to the accelerator opening angle when the accelerator opening angle is gradually increased. (See «ON-BOARD DIAGNOSTIC TEST [MZR 2.0, MZR 2.5]»(ref-579388-S13095199182013100700000).) If verified, go to the next step. If not as verified, replace the throttle body. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579361-S37454927402013100700000).)
  4. Verify that the TP sensor output voltage (PID: TP1, TP2) is within the specification when the accelerator pedal is depressed and not depressed. (See «ON-BOARD DIAGNOSTIC TEST [MZR 2.0, MZR 2.5]»(ref-579388-S13095199182013100700000).) (See «PCM INSPECTION [MZR 2.0, MZR 2.5]»(ref-579389-S04573371672013100700000).) If not as specified, replace the throttle body. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579361-S37454927402013100700000).)

Note. Because the APP sensor is integrated in the accelerator pedal, replacing the APP sensor includes replacement of the accelerator pedal.

Scheme 19

Scheme 19: Voltage Inspection
Scheme 19: Voltage Inspection
  1. Connect the M-MDS to the DLC-2. (Scheme 19): Identifying DLC-2 Location
  2. Switch the ignition to ON.
  3. Verify that the APP sensor output voltage (PID: APP1, APP2) increases according to the increase in the accelerator opening angle when the accelerator opening angle is gradually increased. (See «ON-BOARD DIAGNOSTIC TEST [MZR 2.0, MZR 2.5]»(ref-579388-S13095199182013100700000).) If verified, go to the next step. If not as verified, replace the accelerator pedal. (See «ACCELERATOR PEDAL REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579361-S18591268542013100700000).)
  4. Verify that the APP sensor output voltage (PID: APP1, APP2) is within the specification when the accelerator pedal is depressed and not depressed. (See «ON-BOARD DIAGNOSTIC TEST [MZR 2.0, MZR 2.5]»(ref-579388-S13095199182013100700000).) (See «PCM INSPECTION [MZR 2.0, MZR 2.5]»(ref-579389-S04573371672013100700000).) If not as specified, replace the accelerator pedal. (See «ACCELERATOR PEDAL REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579361-S18591268542013100700000).)

A/F Sensor Heater Inspection

WARNINGA hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system.

Scheme 20

Scheme 20
Scheme 20
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  3. Remove the plug hole plate. (See «PLUG HOLE PLATE REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579359-S03753736432013100700000).)
  4. Remove the air cleaner assembly. (MZR 2.5) (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579361-S37454927402013100700000).)
  5. Disconnect the A/F sensor connector.
  6. Measure the resistance between A/F sensor terminals A and E. (Scheme 20): Identifying A/F Sensor Terminals If not as specified, replace the A/F sensor. (See «AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S33851902052013100700000).) A/F sensor heater resistance 1-10 ohms [normal temperature]

HO2S Heater Inspection

WARNINGA hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system.

Scheme 21

Scheme 21
Scheme 21
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  3. Disconnect the HO2S connector.
  4. Measure the resistance between HO2S terminals C and D. (Scheme 21): Identifying HO2S Connector Terminals If not as specified, replace the HO2S. (See «HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S35538691142013100700000).) HO2S heater resistance 2-50 ohms [normal temperature]
CAUTIONWhen foreign material such as an iron chip is on the CKP sensor, it can cause abnormal output from the sensor because of flux turbulence and adversely affect the engine control. Be sure there is no foreign material on the CKP sensor when replacing. Do not assemble the CKP sensor or change the installation position using any method other than the following. Otherwise, it could negatively affect engine controls, such as the ignition timing and fuel injection.
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000) .)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000) .)
  3. Perform the following procedure for easier access. Remove the aerodynamic under cover No.2. (See «AERODYNAMIC UNDER COVER NO.2 REMOVAL/INSTALLATION»(ref-579341-S33007366072013100700000) .) Remove the front splash shield (RH). (See «SPLASH SHIELD REMOVAL/INSTALLATION»(ref-579341-S13061542712013100700000) .)
  4. Disconnect the CKP sensor connector.
  5. Remove the CKP sensor. (See «CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S05097767392013100700000) .)
  6. Verify that there are no metal shavings on the sensor. If there is a malfunction, remove any metal shavings that are adhering.

Scheme 22

Scheme 22: Air Gap Inspection
Scheme 22: Air Gap Inspection
  1. Verify that the CKP sensor is securely installed. (See «CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S05097767392013100700000).)
  2. Using a thickness gauge, measure the air gap between the plate projections at the back of crankshaft pulley and the CKP sensor. (Scheme 22): Measuring CKP Sensor Air Gap If not within the specification, inspect the plate projections for cracks or bending. If there is any malfunction, replace the crankshaft pulley. (See «FRONT OIL SEAL REPLACEMENT [MZR 2.0, MZR 2.5]»(ref-579359-S07556592462013100700000).) CKP sensor air gap 0.5-1.5 mm {0.02-0.05 in}
CAUTIONWhen foreign material such as an iron chip is on the CKP sensor, it can cause abnormal output from the sensor because of flux turbulence and adversely affect the engine control. Be sure there is no foreign material on the CKP sensor when replacing. Do not assemble the CKP sensor or change the installation position using any method other than the following. Otherwise, it could negatively affect engine controls, such as the ignition timing and fuel injection. If the wiring harnesses or waterproof connectors are damaged, water penetrating the connector will cause a sensor malfunction. To prevent this, be careful not to damage wiring harnesses or waterproof connectors.
  1. Idle the engine.
  2. Measure the CKP signal and verify that rectangular waves are produced. (See «PCM INSPECTION [MZR 2.0, MZR 2.5]»(ref-579389-S04573371672013100700000) .) If not as specified, replace the CKP sensor. (See «CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S05097767392013100700000) .)
CAUTIONWhen 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.
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000) .)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000) .)
  3. Remove the plug hole plate. (See «PLUG HOLE PLATE REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579359-S03753736432013100700000) .)
  4. Disconnect the CMP sensor connector.
  5. Remove the CMP sensor. (See «CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S07700356272013100700000) .)
  6. Verify that there are no metal shavings on the CMP sensor. Remove any metal shavings that are adhering.
CAUTIONWhen 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. If the wiring harnesses or waterproof connectors are damaged, water penetrating the connector will cause a sensor malfunction. To prevent this, be careful not to damage wiring harnesses or waterproof connectors.
  1. Idle the engine.
  2. Measure the CMP signal and verify that rectangular waves are produced. (See «PCM INSPECTION [MZR 2.0, MZR 2.5]»(ref-579389-S04573371672013100700000) .) If not as specified, replace the CMP sensor. (See «CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S07700356272013100700000) .)

Scheme 23

Scheme 23: KNOCK SENSOR (KS) REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]
Scheme 23: KNOCK SENSOR (KS) REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  3. Remove the plug hole plate. (See «PLUG HOLE PLATE REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579359-S03753736432013100700000).)
  4. Remove the intake manifold. (See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579361-S37454927402013100700000).)
  5. Disconnect the KS connector.
  6. Remove the KS. (Scheme 23): Identifying Knock Sensor And Bolt With Torque Specifications
  7. Install in the reverse order of removal.

Scheme 24

Scheme 24: Resistance Inspection
Scheme 24: Resistance Inspection
  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000).)
  3. Disconnect the KS connector.
  4. Measure the resistance between KS terminals A and B. (Scheme 24): Identifying KS Connector Terminals If not as specified, replace the KS. (See «KNOCK SENSOR (KS) REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S27583111092013100700000).) Specification Approx. 4.87 megohms [normal temperature]

Note. The fuel tank pressure sensor cannot be removed as a single unit. When replacing the fuel tank pressure sensor, replace it together with the evaporative hose component as a single unit.

  1. Remove the battery cover. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000) .)
  2. Disconnect the negative battery cable. (See «BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579330-S31782573982013100700000) .)
  3. Disconnect the fuel tank pressure sensor connector.
  4. Remove the clip from the fuel tank pressure sensor bracket. (See «FUEL TANK PRESSURE SENSOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S01618992672013100700000) .)
  5. Disconnect the quick release connectors and remove the evaporative hose component. (See «QUICK RELEASE CONNECTOR (EMISSION SYSTEM) REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579418-S38934674082013100700000) .) (See «FUEL TANK PRESSURE SENSOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S01618992672013100700000) .)
  6. Switch the ignition to ON.
  7. Plug one end of the evaporative hose component and verify that the output voltage from the fuel tank pressure sensor changes when pressure is applied from the other hose end. If not as verified, replace the evaporative hose component. (See «FUEL TANK PRESSURE SENSOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5]»(ref-579389-S01618992672013100700000) .)

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