DTC P0108
DTC P0108 : MAP Sensor Circuit High Voltage
NOTE: Before you troubleshoot, review the general troubleshooting information - Refer to: How to Troubleshoot the Brake Booster Pressure Monitoring System (2016 2017 2018 2019 2020), or How to Troubleshoot the Fuel and Emissions Systems(With Auto Idle Stop System) (2016), or How to Troubleshoot the A/T System (2014 2015), or How to Troubleshoot the Fuel and Emissions Systems .
| DTC Description | Confirmed DTC | Pending DTC | Freeze Frame |
|---|---|---|---|
| P0108 MAP Sensor Circuit High Voltage |
DTC (PGM-FI)
- Problem verification
-1. Turn the vehicle to the ON mode.
- 2. Check the MAP SENSOR in the DATA LIST with the HDS.
Signal Threshold Current conditions Values Unit Values Unit MAP SENSOR More than 4.49 V Do the current condition(s) match the threshold?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the MAP sensor and the PCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.
- Determine possible failure area (MAP sensor, others)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the following connector.
MAP sensor 3P connector - 3. Connect terminals A and B with a jumper wire.
Terminal A MAP sensor 3P connector No. 1 (BLU) Terminal B MAP sensor 3P connector No. 2 (PUR) - 4. Turn the vehicle to the ON mode.
- 5. Check the parameter(s) below with the HDS.
Signal Threshold Current conditions Values Unit Values Unit MAP SENSOR More than 4.49 V Do the current condition(s) match the threshold?
YES
Go to step 3.
NO
- Determine possible failure area (PB line, SG1 line)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Remove the jumper wire from the map sensor 3P connector.
- 3. Turn the vehicle to the ON mode.
- 4. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode MAP sensor 3P connector: disconnected Test circuit VCC1, SG1 Test point 1 MAP sensor 3P connector No. 1 (BLU) Test point 2 MAP sensor 3P connector No. 3 (PNK) Is there about 5.0 V?
YES
Go to step 5.
NO
Go to step 4.
- Open wire check (SG1 line)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Jump the SCS line with the HDS.
- 3. Disconnect the following connector.
- 4. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode MAP sensor 3P connector: disconnected PCM connector C (51P): disconnected Test circuit SG1 Test point 1 MAP sensor 3P connector No. 1 (BLU) Test point 2 PCM connector C (51P) No. 33 (BLU) Is there continuity?
YES
The SG1 wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM - Refer to: PCM Removal and Installation (2016), or PCM Removal and Installation (2014 2015) .
NO
Repair an open in the SG1 wire between the PCM (C33) and the MAP sensor.
- Open wire check (PB line)
-1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Jump the SCS line with the HDS.
- 3. Disconnect the following connector.
- 4. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode MAP sensor 3P connector: disconnected PCM connector C (51P): disconnected Test circuit PB Test point 1 MAP sensor 3P connector No. 2 (PUR) Test point 2 PCM connector C (51P) No. 45 (PUR) Is there continuity?
YES
The PB wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM - Refer to: PCM Removal and Installation (2014 2015), or PCM Removal and Installation (2016) .
NO
Repair an open in the PB wire between the PCM (C45) and the MAP sensor.