BOOST SENSOR INSPECTION [MZR-CD (RF Turbo)]

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Note
•  Perform the following test only when directed.

Visual Inspection

1.  Inspect the boost sensor for damage and cracks.

•  If not as specified, replace the boost sensor.

2.  Inspect vacuum hose for improper routing, kinks or leakage.

•  If there is any malfunction, repair or replace suspected hose.


Voltage Inspection

1.  Turn the engine switch to ON.

2.  Monitor the MAP PID using the M-MDS.

•  If not as specified, perform the “Circuit Open/Short Inspection”.
―  If there is no open/short circuit, replace the boost sensor. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
MAP PID
0.6—1.0 V

3.  Start the engine and warm up the engine completely.

4.  Monitor the MAP PID using the M-MDS at idle.

•  If not as specified, perform the “Circuit Open/Short Inspection”.
―  If there is no open/short circuit, replace the boost sensor. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
MAP PID
0.6—1.0 V


Circuit Open/Short Inspection

1.  Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)

2.  Disconnect the boost sensor connector.

3.  Inspect for open/short circuit in the following wiring harnesses.

•  If there is open/short circuit, repair or replace wiring harnesses.

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Open circuit

•  Boost sensor terminal A and PCM terminal 71
•  Boost sensor terminal B and PCM terminal 52
•  Boost sensor terminal C and PCM terminal 59


Short circuit

•  Boost sensor terminal A and power supply
•  Boost sensor terminal B and power supply
•  Boost sensor terminal B and body ground
•  Boost sensor terminal C and power supply
•  Boost sensor terminal C and body ground