Engine Control System: Other Mazda MPV II рестайлинг

Open circuit

1. If there is no continuity, the circuit is open. Repair or replace the harness. MAF/IAT sensor terminal B (harness-side) and main relay terminal C (harness-side) MAF/IAT sensor terminal E (harness-side) and 104 pin breakout box terminal 88 MAF/IAT sensor terminal D (harness-side) and 104 pin breakout box terminal 36

Short circuit

1. If there is continuity, the circuit is shorted. Repair or replace the harness. MAF/IAT sensor terminal B (harness-side) and body ground MAF/IAT sensor terminal E (harness-side) and power supply MAF/IAT sensor terminal E (harness-side) and body ground MAF/IAT sensor terminal D (harness-side) and power supply

MAF Rate and Load Value

Note. The scan tool shows the MAF rate and load value.

Specifications

Scheme 403

Scheme 404

Scheme 405

1. Disconnect the MAF/IAT sensor connector.
2. Measure the resistance between MAF/IAT sensor terminals A and F using an ohmmeter. If not as specified, replace the MAF/IAT sensor. If the IAT sensor is okay, but the IAT PID is out of specification, perform «IAT Sensor Circuit Open/Short Inspection»(ref-178044-S18684348902005061000000) . Specifications

Scheme 406

Scheme 407

1. Disconnect the PCM connector. (See «PCM REMOVAL/INSTALLATION»(ref-178044-S29084955492005061000000) .)
2. Connect the SST (104 Pin Breakout Box) without connecting to the PCM as shown.
3. Tighten the connector attaching bolt. Tightening torque 3.0-5.4 N.m {30-56 kgf.cm, 27-48 in.lbf}
4. Inspect the following wiring harness for open or short circuit (Continuity check).

1. If there is no continuity, the circuit is open. Repair or replace the harness. MAF/IAT sensor terminal A (harness-side) and 104 pin breakout box terminal 91 MAF/IAT sensor terminal F (harness-side) and 104 pin breakout box terminal 39

1. If there is continuity, the circuit is shorted. Repair or replace the harness. MAF/IAT sensor terminal A (harness-side) and power supply MAF/IAT sensor terminal F (harness-side) and power supply MAF/IAT sensor terminal D (harness-side) and body ground

1. If there is no continuity, the circuit is open. Repair or replace the harness. TP sensor terminal A (harness-side) and 104 pin breakout box terminal 91 TP sensor terminal B (harness-side) and 104 pin breakout box terminal 89 TP sensor terminal C (harness-side) and 104 pin breakout box terminal 90

1. If there is continuity, the circuit is shorted. Repair or replace the harness. TP sensor terminal A (harness-side) and power supply TP sensor terminal B (harness-side) and power supply TP sensor terminal B (harness-side) and body ground TP sensor terminal C (harness-side) and Power supply TP sensor terminal C (harness-side) and body ground

Scheme 408

1. Disconnect the TP sensor connector.
2. Remove the TP sensor attaching screws.
3. Remove the TP sensor from the throttle body.
4. Verify that the throttle valve is fully closed.
5. Install the TP sensor to the throttle body.
6. Adjust the TP sensor.
7. Tighten the TP sensor attaching screws. Tightening torque 3.0 N.m {31 kgf.cm, 27 in.lbf}
8. Verify that the throttle valve moves smoothly.
9. Reconnect the TP sensor connector.

1. If there is no continuity, the circuit is open. Repair or replace the harness. ECT sensor terminal A (harness-side) and 104 pin breakout box terminal 38 ECT sensor terminal B (harness-side) and 104 pin breakout box terminal 91

1. If there is continuity, the circuit is shorted. Repair or replace the harness. ECT sensor terminal A (harness-side) and power supply ECT sensor terminal A (harness-side) and body ground ECT sensor terminal B (harness-side) and power supply

Scheme 409

1. Drain the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS .) (See ENGINE COOLANT REPLACEMENT .)
2. Disconnect the ECT sensor connector. WARNING: When the engine is hot, it can badly burn. Turn off the engine and wait until it is cool before removing the ECT sensor.
3. Remove the ECT sensor.
4. Replace the gasket.
5. Install in the reverse order of removal.
6. Refill the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS .) (See ENGINE COOLANT REPLACEMENT .)

1. If there is no continuity, the circuit is open. Repair or replace the harness. CKP sensor terminal A (harness-side) and 104 pin breakout box terminal 21 CKP sensor terminal B (harness-side) and 104 pin breakout box terminal 22

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

Scheme 410

1. Disconnect the CKP sensor connector. CAUTION: Do not forcefully pull the wiring harness of the CKP sensor. Doing so will break the harness.
2. Remove the CKP sensor installation bolt.
3. Remove the CKP sensor.
4. Install in the reverse order of removal. CAUTION: When 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. Tightening torque 8.0-12.0 N.m {82-122 kgf.cm, 71-106 in.lbf}
5. Reconnect the CKP sensor connector.

1. If there is no continuity, the circuit is open. Repair or replace the harness. CMP sensor terminal A (harness-side) and 104 pin breakout box terminal 85 CMP sensor terminal B (harness-side) and 104 pin breakout box terminal 86

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

Scheme 411

1. Disconnect the CMP sensor connector. CAUTION: Do not forcefully pull the wiring harness of the CMP sensor. Doing so will break the harness.
2. Remove the CMP sensor installation bolt.
3. Remove the CMP sensor.
4. Install in the reverse order of removal. CAUTION: When foreign material such as an iron chip is on the CMP 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 CMP sensor when replacing. Tightening torque 8.0-12.0 N.m {82-122 kgf.cm, 71-106 in.lbf}
5. Reconnect the CMP sensor connector.

1. If there is no continuity, the circuit is open. Repair or replace the harness. Knock sensor terminal A (harness-side) and 104 pin breakout box terminal 57 Knock sensor terminal B (harness-side) and 104 pin breakout box terminal 4

1. If there is continuity, the circuit is shorted. Repair or replace the harness. Knock sensor terminal A (harness-side) and power supply Knock sensor terminal A (harness-side) and body ground Knock sensor terminal B (harness-side) and power supply Knock sensor terminal B (harness-side) and body ground

1. If there is no continuity, the circuit is open. Repair or replace the harness. HO2S (Front, RH) terminal A (harness-side) and 104 pin breakout box terminal 60 HO2S (Front, RH) terminal B (harness-side) and 104 pin breakout box terminal 91 HO2S (Front, RH) terminal A (harness-side) and 104 pin breakout box terminal 35 HO2S (Front, RH) terminal B (harness-side) and 104 pin breakout box terminal 91 HO2S (Front, RH) terminal A (harness-side) and 104 pin breakout box terminal 87 HO2S (Front, RH) terminal B (harness-side) and 104 pin breakout box terminal 91 HO2S (Front, RH) terminal A (harness-side) and 104 pin breakout box terminal 61 HO2S (Front, RH) terminal B (harness-side) and 104 pin breakout box terminal 91

1. If there is continuity, the circuit is shorted. Repair or replace the harness. HO2S (Front, RH) terminal A (harness-side) and body ground HO2S (Front, RH) terminal A (harness-side) and power ground HO2S (Front, RH) terminal B (harness-side) and power ground HO2S (Front, RH) terminal A (harness-side) and body ground HO2S (Front, RH) terminal A (harness-side) and power ground HO2S (Front, RH) terminal B (harness-side) and power ground HO2S (Front, RH) terminal A (harness-side) and body ground HO2S (Front, RH) terminal A (harness-side) and power ground HO2S (Front, RH) terminal B (harness-side) and power ground HO2S (Front, RH) terminal A (harness-side) and body ground HO2S (Front, RH) terminal A (harness-side) and power ground HO2S (Front, RH) terminal B (harness-side) and power ground

1. If there is no continuity, the circuit is open. Repair or replace the harness. HO2S (Front, RH) terminal C (harness-side) and power supply HO2S (Front, RH) terminal D (harness-side) and 104 pin breakout box terminal 93 HO2S (Front, RH) terminal C (harness-side) and power supply HO2S (Front, RH) terminal D (harness-side) and 104 pin breakout box terminal 95 HO2S (Front, RH) terminal C (harness-side) and power supply HO2S (Front, RH) terminal D (harness-side) and 104 pin breakout box terminal 94 HO2S (Front, RH) terminal C (harness-side) and power supply HO2S (Front, RH) terminal D (harness-side) and 104 pin breakout box terminal 96

1. If there is continuity, the circuit is shorted. Repair or replace the harness. HO2S (Front, RH) terminal C (harness-side) and body ground HO2S (Front, RH) terminal D (harness-side) and body ground HO2S (Front, RH) terminal D (harness-side) and power ground HO2S (Front, RH) terminal C (harness-side) and body ground HO2S (Front, RH) terminal D (harness-side) and body ground HO2S (Front, RH) terminal D (harness-side) and power ground HO2S (Front, RH) terminal C (harness-side) and body ground HO2S (Front, RH) terminal D (harness-side) and body ground HO2S (Front, RH) terminal D (harness-side) and power ground HO2S (Front, RH) terminal C (harness-side) and body ground HO2S (Front, RH) terminal D (harness-side) and body ground HO2S (Front, RH) terminal D (harness-side) and power ground

1. If there is no continuity, the circuit is open. Repair or replace the harness. EGR boost sensor terminal C (harness-side) and 104 pin breakout box terminal 90 EGR boost sensor terminal B (harness-side) and 104 pin breakout box terminal 34 EGR boost sensor terminal A (harness-side) and 104 pin breakout box terminal 91

1. If there is continuity, the circuit is shorted. Repair or replace the harness. EGR boost sensor terminal C (harness-side) and power ground EGR boost sensor terminal C (harness-side) and body ground EGR boost sensor terminal B (harness-side) and power ground EGR boost sensor terminal B (harness-side) and body ground EGR boost sensor terminal A (harness-side) and power ground

1. If there is no continuity, the circuit is open. Repair or replace the harness. PSP switch terminal and PCM terminal 31