Engine Control System (MZI-3.7): Other Mazda CX-9 I

PCM CONFIGURATION [MZI-3.7]

Note. Use the IDS (laptop PC) because the PDS (Pocket PC) does not support the PCM CONFIGURATION.

Scheme 35

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 the "Programmable Module Installation", "PCM" from the screen menu.
4. Select "PCM" and perform procedures according to directions on the M-MDS 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 [MZI-3.7]»(ref-345342-S02066164152009102000000) .

Open Circuit

1. If there is no continuity, the circuit is open. Repair or replace the wiring harness. PSP switch terminal A and PCM terminal 21

Short Circuit

1. If there is continuity, the circuit is shorted. Repair or replace the wiring harness. PSP switch terminal A and body ground

Scheme 36

1. Disconnect the negative battery cable.
2. Disconnect MAF/IAT sensor connector.
3. Remove the MAF/IAT sensor.
4. Install in the reverse order of removal.

1. If there is no continuity, the circuit is open. Repair or replace the wiring harness. MAF/IAT sensor terminal A and main relay No. 1 terminal D MAF/IAT sensor terminal C and PCM terminal 1AJ MAF/IAT sensor terminal D and PCM terminal 1 AN MAF/IAT sensor terminal E and PCM terminal 1AL

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

1. If there is no continuity, the circuit is open. Repair or replace the wiring harness. MAF/IAT sensor terminal B and body ground MAF/IAT sensor terminal F and PCM terminal 1AF

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

1. If there is no continuity, there is an open circuit. Repair or replace the wiring harness. Throttle body terminal C and PCM terminal 2AD Throttle body terminal D and PCM terminal 2D Throttle body terminal E and PCM terminal 2AH Throttle body terminal F and PCM terminal 2Z

1. If there is continuity, there is a short circuit. Repair or replace the wiring harness. Throttle body terminal C and power supply Throttle body terminal C and body ground Throttle body terminal D and body ground Throttle body terminal E and power supply Throttle body terminal F and body ground Throttle body terminal F and power supply

1. If there is no continuity, there is an open circuit. Repair or replace the wiring harness. APP sensor terminal B and PCM terminal 1 AC APP sensor terminal C and PCM terminal 1AH APP sensor terminal D and PCM terminal 1Y APP sensor terminal E and PCM terminal 1AK APP sensor terminal F and PCM terminal 1BA APP sensor terminal G and PCM terminal 1AD

1. If there is continuity, there is a short circuit. Repair or replace the wiring harness. APP sensor terminal B and body ground APP sensor terminal B and power supply APP sensor terminal C and power supply APP sensor terminal D and body ground APP sensor terminal E and body ground APP sensor terminal E and power supply APP sensor terminal F and body ground APP sensor terminal G and power supply

1. CKP sensor terminal A and PCM terminal 2P
2. CKP sensor terminal B and PCM terminal 2T

1. CKP sensor terminal A and power supply
2. CKP sensor terminal A and body ground
3. CKP sensor terminal B and power supply
4. CKP sensor terminal B and body ground

Scheme 37

1. Disconnect the negative battery cable.
2. Remove the battery.
3. Remove the following part for easier access. Remove the resonance chamber and air cleaner assy. See «INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-3.7]»(ref-345348-S33859003282009102000000) .
4. Disconnect the CMP sensor connector
5. Remove the CMP sensor. NOTE: Lubricate the CMP O-ring seal with clean engine oil.
6. Install in the reverse order of removal.

1. CMP sensor (RH) terminal A and PCM terminal 2X
2. CMP sensor (RH) terminal B and PCM terminal 2C
3. CMP sensor (LH) terminal A and PCM terminal 2AB
4. CMP sensor (LH) terminal B and PCM terminal 2C

1. CMP sensor (RH) terminal A and power supply
2. CMP sensor (RH) terminal A and body ground
3. CMP sensor (RH) terminal B and power supply
4. CMP sensor (LH) terminal A and power supply
5. CMP sensor (LH) terminal A and body ground
6. CMP sensor (LH) terminal B and power supply

Scheme 38

1. Disconnect the negative battery cable.
2. Remove the engine cover. See «ENGINE COVER REMOVAL/INSTALLATION [MZI-3.7]»(ref-345346-S26593669332009102000000) .
3. Disconnect the HO2S (LH) connector. NOTE: If necessary, lubricate the HO2S with Penetrating and Lock Lubricant loosen to aid in removal.
4. Remove the HO2S (LH) using the SST. NOTE: Apply a light coat of anti-seize lubricant to the threads of the HO2S.
5. Install in the reverse order of removal.

Scheme 39

1. Disconnect the negative battery cable.
2. Remove the following part for easier access. Remove the cowl panel. See «COWL PANEL REMOVAL/INSTALLATION»(ref-345365-S22373951532009102000000) .
3. Disconnect the HO2S (RH) connector. NOTE: If necessary, lubricate the HO2S with Penetrating and Lock Lubricant loosen to aid in removal.
4. Remove the HO2S (RH) using the SST. NOTE: Apply a light coat of anti-seize lubricant to the threads of the HO2S.
5. Install in the reverse order of removal.

1. If there is no continuity, the circuit is open. Repair or replace the harness. HO2S (RH) terminal A and PCM terminal 2J HO2S (RH) terminal B and PCM terminal 2Y HO2S (RH) terminal C and main relay No. 2 terminal D HO2S (RH) terminal D and PCM terminal 2AL HO2S (LH) terminal A and PCM terminal 2E HO2S (LH) terminal B and PCM terminal 2U HO2S (LH) terminal C and main relay No. 2 terminal D HO2S (LH) terminal D and PCM terminal 2AL

1. If there is continuity, the circuit is shorted. Repair or replace the harness. HO2S (RH) terminal A and power supply HO2S (RH) terminal A and body ground HO2S (RH) terminal B and power supply HO2S (RH) terminal B and body ground HO2S (RH) terminal C and body ground HO2S (RH) terminal D and power supply HO2S (LH) terminal A and power supply HO2S (LH) terminal A and body ground HO2S (LH) terminal B and power supply HO2S (LH) terminal B and body ground HO2S (LH) terminal C and body ground HO2S (LH) terminal D and power supply

Scheme 40

1. Disconnect the negative battery cable.
2. Disconnect the HO2S (LH) connector. NOTE: If necessary, lubricate the HO2S (LH) with Penetrating and Lock Lubricant loosen to aid in removal.
3. Remove the HO2S (LH) using the SST. NOTE: Apply a light coat of anti-seize lubricant to the threads of the HO2S.
4. Install in the reverse order of removal.

Scheme 41

1. Disconnect the negative battery cable.
2. Remove the following part for easier access. Remove the cowl panel. See «COWL PANEL REMOVAL/INSTALLATION»(ref-345365-S22373951532009102000000) .
3. Disconnect the HO2S (RH) connector. NOTE: If necessary, lubricate the HO2S (RH) with Penetrating and Lock Lubricant loosen to aid in removal.
4. Remove the HO2S (RH) using the SST. NOTE: Apply a light coat of anti-seize lubricant to the threads of the HO2S.
5. Install in the reverse order of removal.

1. If there is no continuity, the circuit is open. Repair or replace the harness. HO2S (RH) terminal A and PCM terminal 2AS HO2S (RH) terminal B and PCM terminal 2BG HO2S (RH) terminal C and main relay No. 2 terminal D HO2S (RH) terminal D and PCM terminal 2AL HO2S (LH) terminal A and PCM terminal 2AO HO2S (LH) terminal B and PCM terminal 2BC HO2S (LH) terminal C and main relay No. 2 terminal D HO2S (LH) terminal D and PCM terminal 2AL

1. If there is continuity, the circuit is shorted. Repair or replace the harness. HO2S (RH) terminal A and power supply HO2S (RH) terminal A and body ground HO2S (RH) terminal B and power supply HO2S (RH) terminal B and body ground HO2S (RH) terminal C and body ground HO2S (RH) terminal D and power supply HO2S (LH) terminal A and power supply HO2S (LH) terminal A and body ground HO2S (LH) terminal B and power supply HO2S (LH) terminal B and body ground HO2S (LH) terminal C and body ground HO2S (LH) terminal D and power supply

1. If there is no continuity, the circuit is open. Repair or replace the wiring harness. KS terminal A and PCM terminal 2Q KS terminal B and PCM terminal 2M KS terminal C and PCM terminal 2L KS terminal D and PCM terminal 2G

1. If there is continuity, the circuit is shorted. 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 KS terminal C and power supply KS terminal C and body ground KS terminal D and power supply KS terminal D and body ground

1. If there is no continuity, the circuit is open. Repair or replace the wiring harness. CHT sensor terminal A and PCM terminal 2AL CHT sensor terminal B and PCM terminal 2AN

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

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 1AB Fuel tank pressure sensor terminal B and PCM terminal 1AL Fuel tank pressure sensor terminal C and PCM terminal 1U

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 A and body ground Fuel tank pressure sensor terminal B and power supply Fuel tank pressure sensor terminal C and body ground