STEP 1. Using scan tool (M.U.T.-IIISE), check data list item 125: Boost Pressure Sensor.
caution | To prevent damage to scan tool (M.U.T.-IIISE), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-IIISE).
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(1) Connect scan tool (M.U.T.-IIISE). Refer to HOW TO CONNECT THE SCAN TOOL (M.U.T.-IIISE) . (2) Turn the ignition switch to the "ON" position.
(3) Set scan tool (M.U.T.-IIISE) to the data reading mode for item 125, Boost Pressure Sensor.- When altitude is 0 m (0 foot), 101 kPa (29.8 in.Hg).
- When altitude is 600 m (1,969 feet), 95 kPa (28.1 in.Hg).
- When altitude is 1,200 m (3,937 feet), 88 kPa (26.0 in.Hg).
- When altitude is 1,800 m (5,906 feet), 81 kPa (23.9 in.Hg).
(4) Start the engine.- When the engine is idling, 70 - 110 kPa (20.7 - 32.4 in.Hg) (Near the atmospheric).
- When the engine is suddenly revved, intake charge pressure varies.
(5) Turn the ignition switch to the "LOCK" (OFF) position.
Is the sensor operating properly?
It can be assumed that this malfunction is intermittent. Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions . Go to Step 2.
STEP 2. Measure the resistance at boost pressure sensor connector.
STEP 3. Check of open circuit and harness damage in E line between boost pressure sensor connector and ECM connector.
STEP 4. Using scan tool (M.U.T.-IIISE), check data list item 125: Boost Pressure Sensor.
(1) Turn the ignition switch to the "ON" position.
(2) Set scan tool (M.U.T.-IIISE) to the data reading mode for item 125, Boost Pressure Sensor.- When altitude is 0 m (0 foot), 101 kPa (29.8 in.Hg).
- When altitude is 600 m (1,969 feet), 95 kPa (28.1 in.Hg).
- When altitude is 1,200 m (3,937 feet), 88 kPa (26.0 in.Hg).
- When altitude is 1,800 m (5,906 feet), 81 kPa (23.9 in.Hg).
(3) Start the engine.- When the engine is idling, 70 - 110 kPa (20.7 - 32.4 in.Hg) (Near the atmospheric).
- When the engine is suddenly revved, intake charge pressure.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Is the sensor operating properly?
It can be assumed that this malfunction is intermittent. Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions . Replace the ECM (Refer to Removal and Installation ). Then go to Step 7.
STEP 5. Using scan tool (M.U.T.-IIISE), check data list item 125: Boost Pressure Sensor.
(1) Turn the ignition switch to the "ON" position.
(2) Set scan tool (M.U.T.-IIISE) to the data reading mode for item 125: Boost Pressure Sensor.- When altitude is 0 m (0 foot), 101 kPa (29.8 in.Hg).
- When altitude is 600 m (1,969 feet), 95 kPa (28.1 in.Hg).
- When altitude is 1,200 m (3,937 feet), 88 kPa (26.0 in.Hg).
- When altitude is 1,800 m (5,906 feet), 81 kPa (23.9 in.Hg).
(3) Start the engine.- When the engine is idling, 70 - 110 kPa (20.7 - 32.4 in.Hg) (Near the atmospheric).
- When the engine is suddenly revved, intake charge pressure.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Is the sensor operating properly?
It can be assumed that this malfunction is intermittent. Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions . Go to Step 6.
STEP 6. Replace the boost pressure sensor.
STEP 7. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 1 . (2) Check the diagnostic trouble code (DTC).
Is DTC P0238 set?
Retry the troubleshooting. The inspection is complete.