## DTC Troubleshooting: P0107 (3-1)

DTC P0107(3-1): | MAP Sensor Circuit Low Voltage

1. | Turn the ignition switch ON (II).

2. | 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.n NO - Go to 3.

3. | Turn the ignition switch OFF.

4. | Disconnect the MAP sensor 3P connector.

5. | Turn the ignition switch ON (II).

6. | Measure voltage between the MAP sensor 3P connector terminals No. 1 and No. 3. Is there about 5 V? YES - Go to 8. NO - Go to 7.

7. | Measure voltage between ECM/PCM connector terminals A11 and A21. Is there about 5 V? YES - Repair open in the wire between ECM/PCM (A21) and the MAP sensor.n NO - Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/PCM.n

8. | 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 9. NO - Replace the MAP sensor.n

9. | Turn the ignition switch OFF.

10. | Disconnect ECM/PCM connector A (31P).

11. | Check for continuity between the MAP sensor connector terminal No. 2 and body ground. Is there continuity? YES - Repair short in the wire between the ECM/PCM (A19) and the MAP sensor.n NO - Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/PCM.n