DTC Troubleshooting: P0107 (3)

DTC P0107: MAP Sensor Circuit Low Voltage

1. Turn the ignition switch ON (II).

1. Check the MAP SENSOR in the DATA LIST with the HDS.

Is about 3 kPa (26 mmHg, 1.0 in.Hg), or 0.23 V or less indicated?

YES | - | Go to Step 3 .
NO | - | Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the MAP sensor and the ECM/PCM.■

1. Turn the ignition switch OFF.

1. Disconnect the MAP sensor 3P connector.

1. Turn the ignition switch ON (II).

1. Check the MAP SENSOR in the DATA LIST with the HDS.

Is about 3 kPa (26 mmHg, 1.0 in.Hg), or 0.23 V or less indicated?

YES | - | Go to Step 9 .
NO | - | Go to Step 7 .

1. Measure voltage between MAP sensor 3P connector terminals No. 1 and No. 3.

Is there about 5 V?

YES | - | Go to Step 13 .
NO | - | Go to Step 8 .

1. Measure voltage between ECM/PCM connector terminals A21 and A24.

Is there about 5 V?

YES | - | Repair open in the wire between the ECM/PCM (A21) and the MAP sensor, then go to Step 15 .
NO | - | Go to Step 19 .

1. Turn the ignition switch OFF.

1. Jump the SCS line with the HDS.

1. Disconnect ECM/PCM connector A (31P).

1. Check for continuity between MAP sensor 3P connector terminal No. 2 and body ground.

Is there continuity?

YES | - | Repair short in the wire between the ECM/PCM (A30) and the MAP sensor, then go to Step 15 .
NO | - | Go to Step 19 .

1. Turn the ignition switch OFF.

1. Replace the MAP sensor.

1. Reconnect all connectors.

1. Turn the ignition switch ON (II).

1. Reset the ECM/PCM with the HDS.

1. Do the ECM/PCM idle learn procedure.

1. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES | - | If DTC P0107 is indicated, check for poor connections or loose terminals at the MAP sensor and the ECM/PCM, then go to Step 1 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.
NO | - | Troubleshooting is complete.■

1. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM.

1. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES | - | If DTC P0107 is indicated, check for poor connections or loose terminals at the MAP sensor and the ECM/PCM, then go to Step 1 . If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.
NO | - | If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM. ■