DTC P0107: MAP Sensor Circuit Low Voltage
- Turn the ignition switch ON (II).
- Check the MAP with the scan tool.
Is about 101 kPa (760 mmHg, 30 in.Hg) or 2.9 V indicated?
YES |
- Intermittent failure, system is OK at this time. Check for poor connections or loose wires at the MAP sensor and at the ECM/PCM. |
NO |
- Go to step 3. |
- Turn the ignition switch OFF.
- Disconnect the MAP sensor 3P connector.
- Turn the ignition switch ON (II).
- Measure voltage between the MAP sensor 3P connector terminals No. 1 and No. 3.
MAP SENSOR 3P CONNECTOR
Wire side of female terminals
Is there about 5 V?
YES |
- Go to step 8. |
NO |
- Go to step 7. |
- Measure voltage between ECM/PCM connector terminals A11 and A21.
ECM/PCM CONNECTOR A (31P)
Wire side of female terminals
| |
Is there about 5 V?
YES |
- Repair open in the wire between ECM/PCM (A21) and the MAP sensor. |
NO |
- Substitute a known-good ECM/PCM and recheck (see page 11-6). If symptom/indication goes away, replace the original ECM/PCM. |
- Check the MAP with the scan tool.
Is 2 kPa (15 mmHg, 0.6 in.Hg) or less or 0 V indicated?
YES |
- Go to step 9. |
NO |
- Replace the MAP sensor. |
- Turn the ignition switch OFF.
- Disconnect ECM/PCM connector A (31P).
- Check for continuity between the MAP sensor connector terminal No. 2 and body ground.
MAP SENSOR 3P CONNECTOR
Wire side of female terminals
Is there continuity?
YES |
- Repair short in the wire between the ECM/PCM (A19) and the MAP sensor. |
NO |
- Substitute a known-good ECM/PCM and recheck (see page 11-6). If symptom/indication goes away, replace the original ECM/PCM. |
|