DTC P1108: BARO Sensor Circuit High Voltage
- Check the ''On Board Diagnostic (OBD) System Check''.
Was the ''OBD System Check'' performed?
YES – Substitute a known-good ECM and recheck. If symptom/indication goes away, replace the original ECM. 
NO – Go to OBD System Check.
DTC P1195: Rail Pressure (RP) Sensor Supply Voltage High/Low
- Check the ''On Board Diagnostic (OBD) System Check''.
Was the ''OBD System Check'' performed?
YES – Go to step 2.
NO – Go to OBD System Check.
- Check the DTC.
Are there other DTCs P1627, P1618 (beside DTC P1195) being output?
YES – Go to DTC P1627, P1628 chart (5V reference #2 circuit failure).
NO – Go to step 3.
- Check the following conditions:
- Damaging the RP sensor.
Is a problem found?
YES – Repair as necessary.
NO – Go to step 4.
- Turn the ignition switch OFF.
- Disconnect ECM connector.
- Measure the resistance of RP sensor as below.
- Between terminal 86 and 90.
Is there about 0.9 – 1.3 ohms (At room temperature: about 20°C (68°F))?
YES – Go to step 7.
NO – Go to step 9.