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Home >> Honda >> 1996 >> Passport DX >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 2.6L 4-CYL >> Circuit Testing >> DTC P0106 - Map Sensor System Performance >> Diagnostic Procedures
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Diagnostic Procedures

  1. Perform On-Board Diagnostic (OBD) System Check. After performing OBD system check, go to next step.
  2. Turn ignition on, with engine off. Using scan tool, review FREEZE FRAME data and note parameters. Start engine and operate vehicle within conditions required for setting this DTC, and as close to conditions recorded in FREEZE FRAME as possible. If scan tool indicates DTC P0106 failed, go to step 4). If it indicates DTC P0106 did not fail, go to next step.
  3. Check for: MAP sensor seal missing of damaged, vacuum hoses (to MAP) disconnected, damaged or incorrectly routed, intake manifold vacuum leaks, throttle body leaks, EGR valve flange and pipe leaks, PCV faulty, missing or incorrectly installed. If no problem was found, refer to diagnostic aids.
  4. Disconnect MAP sensor connector and observe MAP value displayed on scan tool. If value is near 10 kPa, go to next step. If value is not near 10 kPa, go to step 13).
  5. Connect a test light between battery positive and MAP sensor signal circuit at sensor harness connector and observe MAP value on scan tool. If value is near 5 volts (104 kPa), go to next step. If value is not near 5 volts (104 kPa), go to step 9).
  6. Jumper 5 volt reference circuit and MAP signal circuit together at sensor harness connector. Observe MAP value displayed on scan tool. If value is near 5 volts (104 kPa), go to next step. If value is not near 5 volts (104 kPa), go to step 8).
  7. With ignition off, disconnect PCM and check sensor ground circuit for high resistance, open between PCM and MAP sensor, or poor connection at PCM. If no problem is found, go to step 11).
  8. With ignition off, check 5 volt reference circuit for high resistance, open between PCM and MAP sensor, or poor connection at PCM. If no problem is found, go to step 10).
  9. With ignition off, check MAP sensor signal circuit for high resistance, open short to ground, or short to sensor ground circuit. If no problem is found, go to next step.
  10. Check MAP sensor signal circuit for poor connection at PCM. If no problem is found, go to step 14).
  11. Check for poor connection at MAP sensor. If no problem is found, go to next step.
  12. Replace MAP sensor.
  13. Turn ignition off and disconnect PCM. With engine off, turn ignition on, check MAP signal circuit for a short to voltage or to 5 volt reference circuit. If no problem is found, go to next step.
  14. Replace PCM. Program replacement PCM using required equipment.
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