P0107
DTC P0107: MAP Sensor Circuit Low Voltage1. Turn the ignition switch ON (II).
2. Check the MAP with the scan tool.
Is approx. 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 the ECM/PCM.
NO - Go to step 3.
3. Turn the ignition switch OFF.
4. Disconnect the MAP sensor connector.
5. Turn the ignition switch ON (II).
6. Measure voltage between MAP sensor connector terminals No.1 and No.2.
Is there approx. 5 V ?
YES - Go to step 8.
NO - Go to step 7.
7. Measure voltage between ECM/PCM connector terminals C19 and C7.
Is there approx. 5 V ?
YES - Repair open in the wire between the ECM/PCM (C19) and the MAP sensor.
NO - Substitute a known-good ECM/PCM and recheck. If normal MAP readings are indicated, replace the original ECM/PCM.
8. Check the MAP with the scan tool.
Is approx. 2 kPa (15 mmHg, 0.6 in.Hg) or less, or 0 V indicated?
YES - Go to step 9.
NO - Replace the MAP sensor.
9. Turn the ignition switch OFF.
10. Disconnect ECM/PCM connector C (31P).
11. Check for continuity between MAP sensor connector terminal No.3 and body ground.
Is there continuity?
YES - Repair short in the wire between the ECM/PCM (C17) and the MAP sensor.
NO - Substitute a known-good ECM/PCM and recheck. If normal MAP readings indicated, replace the original ECM/PCM.