NOTE:
Before performing the following inspection, make sure to follow the procedure as indicated in the troubleshooting flowchart. (See HOW TO USE THIS MANUAL.)
1. Connect the M-MDS to the DLC‐2.
2. Turn the ignition switch to the ON position (Engine off).
3. Select MAP PID on the M-MDS.
4. Verify that the MAP PID (pressure) and barometric pressure are practically equal.
If not as verified, perform the “Circuit Open/Short Inspection”.
If there is no open or short circuit, replace the MAP sensor. (See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR REMOVAL/INSTALLATION [LF].)
If as verified, go to next step.
5. Apply vacuum of –25.0 kPa {–187 mmHg, –7.38 inHg} to the MAP sensor, and verify that the MAP variation from that of Step 4 is approx. 25.0 kPa {187 mmHg, 7.38 inHg}.
If not as verified, perform the “Circuit Open/Short inspection”.
If there is no open or short circuit, replace the MAP sensor. (See MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR REMOVAL/INSTALLATION [LF].)
1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION [LF].)
2. Inspect the following wiring harnesses for an open or short circuit. (Continuity Inspection)
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
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.